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0ea0e781da
Occurred when unchecking and rechecking the "Draw elements" property for example the "Eclipltic Sphere Labels"
1728 lines
59 KiB
C++
1728 lines
59 KiB
C++
/*****************************************************************************************
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* *
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* OpenSpace *
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* *
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* Copyright (c) 2014-2021 *
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a copy of this *
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* software and associated documentation files (the "Software"), to deal in the Software *
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* without restriction, including without limitation the rights to use, copy, modify, *
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* merge, publish, distribute, sublicense, and/or sell copies of the Software, and to *
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* permit persons to whom the Software is furnished to do so, subject to the following *
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* conditions: *
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* *
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* The above copyright notice and this permission notice shall be included in all copies *
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* or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, *
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* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A *
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* PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT *
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF *
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* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE *
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* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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****************************************************************************************/
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#include <modules/digitaluniverse/rendering/renderablebillboardscloud.h>
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#include <modules/digitaluniverse/digitaluniversemodule.h>
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#include <openspace/documentation/documentation.h>
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#include <openspace/documentation/verifier.h>
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#include <openspace/engine/globals.h>
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#include <openspace/engine/windowdelegate.h>
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#include <openspace/util/updatestructures.h>
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#include <openspace/rendering/renderengine.h>
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#include <ghoul/filesystem/cachemanager.h>
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#include <ghoul/filesystem/filesystem.h>
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#include <ghoul/misc/crc32.h>
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#include <ghoul/misc/templatefactory.h>
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#include <ghoul/io/texture/texturereader.h>
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#include <ghoul/logging/logmanager.h>
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#include <ghoul/misc/profiling.h>
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#include <ghoul/opengl/openglstatecache.h>
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#include <ghoul/opengl/programobject.h>
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#include <ghoul/opengl/texture.h>
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#include <ghoul/opengl/textureunit.h>
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#include <ghoul/font/fontmanager.h>
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#include <ghoul/font/fontrenderer.h>
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#include <ghoul/glm.h>
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#include <glm/gtx/string_cast.hpp>
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#include <array>
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#include <fstream>
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#include <cstdint>
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#include <locale>
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#include <optional>
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#include <string>
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namespace {
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constexpr const char* _loggerCat = "RenderableBillboardsCloud";
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constexpr const char* ProgramObjectName = "RenderableBillboardsCloud";
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constexpr const char* RenderToPolygonProgram = "RenderableBillboardsCloud_Polygon";
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constexpr const std::array<const char*, 20> UniformNames = {
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"cameraViewProjectionMatrix", "modelMatrix", "cameraPosition", "cameraLookUp",
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"renderOption", "minBillboardSize", "maxBillboardSize",
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"correctionSizeEndDistance", "correctionSizeFactor", "color", "alphaValue",
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"scaleFactor", "up", "right", "fadeInValue", "screenSize", "spriteTexture",
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"hasColorMap", "enabledRectSizeControl", "hasDvarScaling"
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};
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constexpr int8_t CurrentCacheVersion = 1;
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constexpr double PARSEC = 0.308567756E17;
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constexpr const int RenderOptionViewDirection = 0;
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constexpr const int RenderOptionPositionNormal = 1;
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constexpr openspace::properties::Property::PropertyInfo SpriteTextureInfo = {
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"Texture",
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"Point Sprite Texture",
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"The path to the texture that should be used as the point sprite."
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};
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constexpr openspace::properties::Property::PropertyInfo ScaleFactorInfo = {
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"ScaleFactor",
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"Scale Factor",
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"This value is used as a multiplicative factor that is applied to the apparent "
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"size of each point."
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};
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constexpr openspace::properties::Property::PropertyInfo ColorInfo = {
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"Color",
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"Color",
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"This value is used to define the color of the astronomical object."
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};
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constexpr openspace::properties::Property::PropertyInfo ColorMapInfo = {
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"ColorMap",
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"Color Map File",
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"The path to the color map file of the astronomical object."
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};
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constexpr openspace::properties::Property::PropertyInfo TextColorInfo = {
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"TextColor",
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"Text Color",
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"The text color for the astronomical object."
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};
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constexpr openspace::properties::Property::PropertyInfo TextOpacityInfo = {
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"TextOpacity",
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"Text Opacity",
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"Determines the transparency of the text label, where 1 is completely opaque "
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"and 0 fully transparent."
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};
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constexpr openspace::properties::Property::PropertyInfo TextSizeInfo = {
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"TextSize",
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"Text Size",
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"The text size for the astronomical object labels."
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};
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constexpr openspace::properties::Property::PropertyInfo LabelMinSizeInfo = {
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"TextMinSize",
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"Text Min Size",
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"The minimal size (in pixels) of the text for the labels for the astronomical "
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"objects being rendered."
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};
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constexpr openspace::properties::Property::PropertyInfo LabelMaxSizeInfo = {
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"TextMaxSize",
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"Text Max Size",
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"The maximum size (in pixels) of the text for the labels for the astronomical "
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"objects being rendered."
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};
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constexpr openspace::properties::Property::PropertyInfo DrawElementsInfo = {
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"DrawElements",
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"Draw Elements",
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"Enables/Disables the drawing of the astronomical objects."
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};
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constexpr openspace::properties::Property::PropertyInfo DrawLabelInfo = {
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"DrawLabels",
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"Draw Labels",
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"Determines whether labels should be drawn or hidden."
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};
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constexpr openspace::properties::Property::PropertyInfo ColorOptionInfo = {
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"ColorOption",
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"Color Option",
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"This value determines which paramenter is used for default color of the "
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"astronomical objects."
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};
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constexpr openspace::properties::Property::PropertyInfo OptionColorRangeInfo = {
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"OptionColorRange",
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"Option Color Range",
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"This value changes the range of values to be mapped with the current color map."
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};
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constexpr openspace::properties::Property::PropertyInfo SizeOptionInfo = {
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"SizeOption",
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"Size Option Variable",
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"This value determines which paramenter (datavar) is used for scaling "
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"of the astronomical objects."
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};
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constexpr openspace::properties::Property::PropertyInfo RenderOptionInfo = {
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"RenderOption",
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"Render Option",
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"Debug option for rendering of billboards and texts."
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};
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constexpr openspace::properties::Property::PropertyInfo FadeInDistancesInfo = {
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"FadeInDistances",
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"Fade-In Start and End Distances",
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"These values determine the initial and final distances from the center of "
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"our galaxy from which the astronomical object will start and end "
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"fading-in."
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};
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constexpr openspace::properties::Property::PropertyInfo DisableFadeInInfo = {
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"DisableFadeIn",
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"Disable Fade-in effect",
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"Enables/Disables the Fade-in effect."
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};
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constexpr openspace::properties::Property::PropertyInfo BillboardMaxSizeInfo = {
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"BillboardMaxSize",
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"Billboard Max Size in Pixels",
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"The max size (in pixels) for the billboard representing the astronomical "
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"object."
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};
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constexpr openspace::properties::Property::PropertyInfo BillboardMinSizeInfo = {
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"BillboardMinSize",
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"Billboard Min Size in Pixels",
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"The min size (in pixels) for the billboard representing the astronomical "
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"object."
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};
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constexpr openspace::properties::Property::PropertyInfo
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CorrectionSizeEndDistanceInfo = {
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"CorrectionSizeEndDistance",
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"Distance in 10^X meters where correction size stops acting.",
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"Distance in 10^X meters where correction size stops acting."
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};
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constexpr openspace::properties::Property::PropertyInfo CorrectionSizeFactorInfo = {
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"CorrectionSizeFactor",
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"Control variable for distance size.",
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""
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};
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constexpr openspace::properties::Property::PropertyInfo PixelSizeControlInfo = {
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"EnablePixelSizeControl",
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"Enable pixel size control.",
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"Enable pixel size control for rectangular projections."
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};
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constexpr openspace::properties::Property::PropertyInfo UseLinearFiltering = {
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"UseLinearFiltering",
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"Use Linear Filtering",
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"Determines whether the provided color map should be sampled nearest neighbor "
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"(=off) or linearly (=on"
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};
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constexpr openspace::properties::Property::PropertyInfo SetRangeFromData = {
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"SetRangeFromData",
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"Set Data Range from Data",
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"Set the data range based on the available data"
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};
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struct [[codegen::Dictionary(RenderableBillboardsCloud)]] Parameters {
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// The path to the SPECK file that contains information about the astronomical
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// object being rendered
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std::optional<std::string> file;
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// [[codegen::verbatim(ColorInfo.description)]]
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glm::vec3 color [[codegen::color()]];
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// [[codegen::verbatim(SpriteTextureInfo.description)]]
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std::optional<std::string> texture;
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// [[codegen::verbatim(DrawElementsInfo.description)]]
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std::optional<bool> drawElements;
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enum class RenderOption {
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ViewDirection [[codegen::key("Camera View Direction")]],
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PositionNormal [[codegen::key("Camera Position Normal")]]
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};
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// [[codegen::verbatim(RenderOptionInfo.description)]]
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std::optional<RenderOption> renderOption;
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enum class Unit {
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Meter [[codegen::key("m")]],
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Kilometer [[codegen::key("Km")]],
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Parsec [[codegen::key("pc")]],
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Kiloparsec [[codegen::key("Kpc")]],
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Megaparsec [[codegen::key("Mpc")]],
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Gigaparsec [[codegen::key("Gpc")]],
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GigalightYears [[codegen::key("Gly")]]
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};
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std::optional<Unit> unit;
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// [[codegen::verbatim(ScaleFactorInfo.description)]]
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std::optional<float> scaleFactor;
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// [[codegen::verbatim(ColorMapInfo.description)]]
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std::optional<std::string> colorMap;
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// Set a 1 to 1 relationship between the color index variable and the colormap
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// entrered value
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std::optional<bool> exactColorMap;
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// The number of sides for the polygon used to represent the astronomical object
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std::optional<int> polygonSides;
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// [[codgen::verbatim(DrawLabelInfo.description)]]
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std::optional<bool> drawLabels;
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// [[codgen::verbatim(TextColorInfo.description)]]
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std::optional<glm::vec3> textColor [[codegen::color()]];
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// [[codgen::verbatim(TextOpacityInfo.description)]]
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std::optional<float> textOpacity;
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// [[codgen::verbatim(TextSizeInfo.description)]]
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std::optional<float> textSize;
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// The path to the label file that contains information about the astronomical
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// objects being rendered
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std::optional<std::string> labelFile;
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// [[codgen::verbatim(LabelMinSizeInfo.description)]]
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std::optional<float> textMinSize;
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// [[codgen::verbatim(LabelMaxSizeInfo.description)]]
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std::optional<float> textMaxSize;
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// [[codgen::verbatim(ColorOptionInfo.description)]]
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std::optional<std::vector<std::string>> colorOption;
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// [[codgen::verbatim(SizeOptionInfo.description)]]
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std::optional<std::vector<std::string>> sizeOption;
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// This value determines the colormap ranges for the color parameters of the
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// astronomical objects
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std::optional<std::vector<glm::vec2>> colorRange;
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// Transformation matrix to be applied to each astronomical object
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std::optional<glm::dmat4x4> transformationMatrix;
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// [[codgen::verbatim(FadeInDistancesInfo.description)]]
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std::optional<glm::dvec2> fadeInDistances;
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// [[codgen::verbatim(DisableFadeInInfo.description)]]
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std::optional<bool> disableFadeIn;
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// [[codgen::verbatim(BillboardMaxSizeInfo.description)]]
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std::optional<float> billboardMaxSize;
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// [[codgen::verbatim(BillboardMinSizeInfo.description)]]
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std::optional<float> billboardMinSize;
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// [[codgen::verbatim(CorrectionSizeEndDistanceInfo.description)]]
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std::optional<float> correctionSizeEndDistance;
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// [[codgen::verbatim(CorrectionSizeFactorInfo.description)]]
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std::optional<float> correctionSizeFactor;
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// [[codgen::verbatim(PixelSizeControlInfo.description)]]
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std::optional<bool> enablePixelSizeControl;
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// [[codgen::verbatim(UseLinearFiltering.description)]]
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std::optional<bool> useLinearFiltering;
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};
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#include "renderablebillboardscloud_codegen.cpp"
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} // namespace
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namespace openspace {
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documentation::Documentation RenderableBillboardsCloud::Documentation() {
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documentation::Documentation doc = codegen::doc<Parameters>();
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doc.id = "digitaluniverse_RenderableBillboardsCloud";
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return doc;
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}
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RenderableBillboardsCloud::RenderableBillboardsCloud(const ghoul::Dictionary& dictionary)
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: Renderable(dictionary)
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, _scaleFactor(ScaleFactorInfo, 1.f, 0.f, 600.f)
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, _pointColor(ColorInfo, glm::vec3(1.f), glm::vec3(0.f), glm::vec3(1.f))
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, _spriteTexturePath(SpriteTextureInfo)
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, _textColor(TextColorInfo, glm::vec3(1.f), glm::vec3(0.f), glm::vec3(1.f))
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, _textOpacity(TextOpacityInfo, 1.f, 0.f, 1.f)
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, _textSize(TextSizeInfo, 8.f, 0.5f, 24.f)
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, _textMinSize(LabelMinSizeInfo, 8.f, 0.5f, 24.f)
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, _textMaxSize(LabelMaxSizeInfo, 20.f, 0.5f, 100.f)
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, _drawElements(DrawElementsInfo, true)
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, _drawLabels(DrawLabelInfo, false)
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, _pixelSizeControl(PixelSizeControlInfo, false)
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, _colorOption(ColorOptionInfo, properties::OptionProperty::DisplayType::Dropdown)
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, _optionColorRangeData(OptionColorRangeInfo, glm::vec2(0.f))
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, _datavarSizeOption(
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SizeOptionInfo,
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properties::OptionProperty::DisplayType::Dropdown
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)
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, _fadeInDistance(
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FadeInDistancesInfo,
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glm::vec2(0.f),
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glm::vec2(0.f),
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glm::vec2(100.f)
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)
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, _disableFadeInDistance(DisableFadeInInfo, true)
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, _billboardMaxSize(BillboardMaxSizeInfo, 400.f, 0.f, 1000.f)
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, _billboardMinSize(BillboardMinSizeInfo, 0.f, 0.f, 100.f)
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, _correctionSizeEndDistance(CorrectionSizeEndDistanceInfo, 17.f, 12.f, 25.f)
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, _correctionSizeFactor(CorrectionSizeFactorInfo, 8.f, 0.f, 20.f)
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, _useLinearFiltering(UseLinearFiltering, false)
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, _setRangeFromData(SetRangeFromData)
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, _renderOption(RenderOptionInfo, properties::OptionProperty::DisplayType::Dropdown)
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{
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const Parameters p = codegen::bake<Parameters>(dictionary);
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if (p.file.has_value()) {
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_speckFile = absPath(*p.file);
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}
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_hasSpeckFile = p.file.has_value();
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_drawElements = p.drawElements.value_or(_drawElements);
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_drawElements.onChange([&]() { _hasSpeckFile = !_hasSpeckFile; });
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addProperty(_drawElements);
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_renderOption.addOption(RenderOptionViewDirection, "Camera View Direction");
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_renderOption.addOption(RenderOptionPositionNormal, "Camera Position Normal");
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if (p.renderOption.has_value()) {
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switch (*p.renderOption) {
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case Parameters::RenderOption::ViewDirection:
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_renderOption = RenderOptionViewDirection;
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break;
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case Parameters::RenderOption::PositionNormal:
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_renderOption = RenderOptionPositionNormal;
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break;
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}
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}
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else {
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_renderOption = RenderOptionViewDirection;
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}
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addProperty(_renderOption);
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if (p.unit.has_value()) {
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switch (*p.unit) {
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case Parameters::Unit::Meter:
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_unit = Meter;
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break;
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case Parameters::Unit::Kilometer:
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_unit = Kilometer;
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break;
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case Parameters::Unit::Parsec:
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_unit = Parsec;
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break;
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case Parameters::Unit::Kiloparsec:
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_unit = Kiloparsec;
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break;
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case Parameters::Unit::Megaparsec:
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_unit = Megaparsec;
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break;
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case Parameters::Unit::Gigaparsec:
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_unit = Gigaparsec;
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break;
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case Parameters::Unit::GigalightYears:
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_unit = GigalightYears;
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break;
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}
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}
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else {
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LWARNING("No unit given for RenderableBillboardsCloud. Using meters as units.");
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_unit = Meter;
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}
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if (p.texture.has_value()) {
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_spriteTexturePath = absPath(*p.texture);
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_spriteTexturePath.onChange([&]() { _spriteTextureIsDirty = true; });
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// @TODO (abock, 2021-01-31) I don't know why we only add this property if the
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// texture is given, but I think it's a bug
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addProperty(_spriteTexturePath);
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}
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_hasSpriteTexture = p.texture.has_value();
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if (p.colorMap.has_value()) {
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_colorMapFile = absPath(*p.colorMap);
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_hasColorMapFile = true;
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if (p.colorOption.has_value()) {
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std::vector<std::string> opts = *p.colorOption;
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for (size_t i = 0; i < opts.size(); ++i) {
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_colorOption.addOption(static_cast<int>(i), opts[i]);
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_optionConversionMap.insert({ static_cast<int>(i), opts[i] });
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_colorOptionString = opts[i];
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}
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}
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_colorOption.onChange([&]() {
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_dataIsDirty = true;
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const glm::vec2 colorRange = _colorRangeData[_colorOption.value()];
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_optionColorRangeData = colorRange;
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_colorOptionString = _optionConversionMap[_colorOption.value()];
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});
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addProperty(_colorOption);
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_colorRangeData = p.colorRange.value_or(_colorRangeData);
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if (!_colorRangeData.empty()) {
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_optionColorRangeData = _colorRangeData[_colorRangeData.size() - 1];
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}
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_optionColorRangeData.onChange([&]() {
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const glm::vec2 colorRange = _optionColorRangeData;
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_colorRangeData[_colorOption.value()] = colorRange;
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_dataIsDirty = true;
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});
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addProperty(_optionColorRangeData);
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_isColorMapExact = p.exactColorMap.value_or(_isColorMapExact);
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}
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else {
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_pointColor = p.color;
|
|
_pointColor.setViewOption(properties::Property::ViewOptions::Color);
|
|
addProperty(_pointColor);
|
|
}
|
|
|
|
addProperty(_opacity);
|
|
|
|
_scaleFactor = p.scaleFactor.value_or(_scaleFactor);
|
|
addProperty(_scaleFactor);
|
|
|
|
if (p.sizeOption.has_value()) {
|
|
std::vector<std::string> opts = *p.sizeOption;
|
|
for (size_t i = 0; i < opts.size(); ++i) {
|
|
_datavarSizeOption.addOption(static_cast<int>(i), opts[i]);
|
|
_optionConversionSizeMap.insert({ static_cast<int>(i), opts[i] });
|
|
_datavarSizeOptionString = opts[i];
|
|
}
|
|
|
|
_datavarSizeOption.onChange([&]() {
|
|
_dataIsDirty = true;
|
|
_datavarSizeOptionString = _optionConversionSizeMap[_datavarSizeOption];
|
|
});
|
|
addProperty(_datavarSizeOption);
|
|
|
|
_hasDatavarSize = true;
|
|
}
|
|
|
|
_polygonSides = p.polygonSides.value_or(_polygonSides);
|
|
_hasPolygon = p.polygonSides.has_value();
|
|
|
|
if (p.labelFile.has_value()) {
|
|
_drawLabels = p.drawLabels.value_or(_drawLabels);
|
|
addProperty(_drawLabels);
|
|
|
|
_labelFile = absPath(*p.labelFile);
|
|
_hasLabel = true;
|
|
|
|
_textColor = p.textColor.value_or(_textColor);
|
|
_hasLabel = p.textColor.has_value();
|
|
_textColor.setViewOption(properties::Property::ViewOptions::Color);
|
|
addProperty(_textColor);
|
|
_textColor.onChange([&]() { _textColorIsDirty = true; });
|
|
|
|
_textOpacity = p.textOpacity.value_or(_textOpacity);
|
|
addProperty(_textOpacity);
|
|
|
|
_textSize = p.textSize.value_or(_textSize);
|
|
addProperty(_textSize);
|
|
|
|
_textMinSize = p.textMinSize.value_or(_textMinSize);
|
|
addProperty(_textMinSize);
|
|
|
|
_textMaxSize = p.textMaxSize.value_or(_textMaxSize);
|
|
addProperty(_textMaxSize);
|
|
}
|
|
|
|
_transformationMatrix = p.transformationMatrix.value_or(_transformationMatrix);
|
|
|
|
if (p.fadeInDistances.has_value()) {
|
|
_fadeInDistance = *p.fadeInDistances;
|
|
addProperty(_fadeInDistance);
|
|
|
|
_disableFadeInDistance = false;
|
|
addProperty(_disableFadeInDistance);
|
|
}
|
|
|
|
_billboardMaxSize = p.billboardMaxSize.value_or(_billboardMaxSize);
|
|
addProperty(_billboardMaxSize);
|
|
|
|
_billboardMinSize = p.billboardMinSize.value_or(_billboardMinSize);
|
|
addProperty(_billboardMinSize);
|
|
|
|
_correctionSizeEndDistance =
|
|
p.correctionSizeEndDistance.value_or(_correctionSizeEndDistance);
|
|
addProperty(_correctionSizeEndDistance);
|
|
|
|
_correctionSizeFactor = p.correctionSizeFactor.value_or(_correctionSizeFactor);
|
|
if (p.correctionSizeFactor.has_value()) {
|
|
addProperty(_correctionSizeFactor);
|
|
}
|
|
|
|
_pixelSizeControl = p.enablePixelSizeControl.value_or(_pixelSizeControl);
|
|
if (p.enablePixelSizeControl.has_value()) {
|
|
addProperty(_pixelSizeControl);
|
|
}
|
|
|
|
_setRangeFromData.onChange([this]() {
|
|
const int colorMapInUse =
|
|
_hasColorMapFile ? _variableDataPositionMap[_colorOptionString] : 0;
|
|
|
|
float minValue = std::numeric_limits<float>::max();
|
|
float maxValue = std::numeric_limits<float>::min();
|
|
for (size_t i = 0; i < _fullData.size(); i += _nValuesPerAstronomicalObject) {
|
|
float colorIdx = _fullData[i + 3 + colorMapInUse];
|
|
maxValue = colorIdx >= maxValue ? colorIdx : maxValue;
|
|
minValue = colorIdx < minValue ? colorIdx : minValue;
|
|
}
|
|
|
|
_optionColorRangeData = glm::vec2(minValue, maxValue);
|
|
});
|
|
addProperty(_setRangeFromData);
|
|
|
|
_useLinearFiltering = p.useLinearFiltering.value_or(_useLinearFiltering);
|
|
_useLinearFiltering.onChange([&]() { _dataIsDirty = true; });
|
|
addProperty(_useLinearFiltering);
|
|
}
|
|
|
|
bool RenderableBillboardsCloud::isReady() const {
|
|
return ((_program != nullptr) && (!_fullData.empty())) || (!_labelData.empty());
|
|
}
|
|
|
|
void RenderableBillboardsCloud::initialize() {
|
|
ZoneScoped
|
|
|
|
bool success = loadData();
|
|
if (!success) {
|
|
throw ghoul::RuntimeError("Error loading data");
|
|
}
|
|
|
|
if (!_colorOptionString.empty() && (_colorRangeData.size() > 1)) {
|
|
// Following DU behavior here. The last colormap variable
|
|
// entry is the one selected by default.
|
|
_colorOption.setValue(static_cast<int>(_colorRangeData.size() - 1));
|
|
}
|
|
|
|
setRenderBin(Renderable::RenderBin::PreDeferredTransparent);
|
|
}
|
|
|
|
void RenderableBillboardsCloud::initializeGL() {
|
|
ZoneScoped
|
|
|
|
_program = DigitalUniverseModule::ProgramObjectManager.request(
|
|
ProgramObjectName,
|
|
[]() {
|
|
return global::renderEngine->buildRenderProgram(
|
|
ProgramObjectName,
|
|
absPath("${MODULE_DIGITALUNIVERSE}/shaders/billboard_vs.glsl"),
|
|
absPath("${MODULE_DIGITALUNIVERSE}/shaders/billboard_fs.glsl"),
|
|
absPath("${MODULE_DIGITALUNIVERSE}/shaders/billboard_gs.glsl")
|
|
);
|
|
}
|
|
);
|
|
|
|
_renderToPolygonProgram = DigitalUniverseModule::ProgramObjectManager.request(
|
|
RenderToPolygonProgram,
|
|
[]() {
|
|
return ghoul::opengl::ProgramObject::Build(
|
|
RenderToPolygonProgram,
|
|
absPath("${MODULE_DIGITALUNIVERSE}/shaders/billboardpolygon_vs.glsl"),
|
|
absPath("${MODULE_DIGITALUNIVERSE}/shaders/billboardpolygon_fs.glsl"),
|
|
absPath("${MODULE_DIGITALUNIVERSE}/shaders/billboardpolygon_gs.glsl")
|
|
);
|
|
}
|
|
);
|
|
|
|
ghoul::opengl::updateUniformLocations(*_program, _uniformCache, UniformNames);
|
|
|
|
if (_hasPolygon) {
|
|
createPolygonTexture();
|
|
}
|
|
|
|
if (_hasLabel) {
|
|
if (_font == nullptr) {
|
|
size_t _fontSize = 50;
|
|
_font = global::fontManager->font(
|
|
"Mono",
|
|
static_cast<float>(_fontSize),
|
|
ghoul::fontrendering::FontManager::Outline::Yes,
|
|
ghoul::fontrendering::FontManager::LoadGlyphs::No
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
void RenderableBillboardsCloud::deinitializeGL() {
|
|
glDeleteBuffers(1, &_vbo);
|
|
_vbo = 0;
|
|
glDeleteVertexArrays(1, &_vao);
|
|
_vao = 0;
|
|
|
|
DigitalUniverseModule::ProgramObjectManager.release(
|
|
ProgramObjectName,
|
|
[](ghoul::opengl::ProgramObject* p) {
|
|
global::renderEngine->removeRenderProgram(p);
|
|
}
|
|
);
|
|
_program = nullptr;
|
|
|
|
DigitalUniverseModule::ProgramObjectManager.release(RenderToPolygonProgram);
|
|
_renderToPolygonProgram = nullptr;
|
|
|
|
DigitalUniverseModule::TextureManager.release(_spriteTexture);
|
|
_spriteTexture = nullptr;
|
|
|
|
if (_hasPolygon) {
|
|
_polygonTexture = nullptr;
|
|
glDeleteTextures(1, &_pTexture);
|
|
}
|
|
}
|
|
|
|
void RenderableBillboardsCloud::renderBillboards(const RenderData& data,
|
|
const glm::dmat4& modelMatrix,
|
|
const glm::dvec3& orthoRight,
|
|
const glm::dvec3& orthoUp,
|
|
float fadeInVariable)
|
|
{
|
|
glDepthMask(false);
|
|
|
|
glEnablei(GL_BLEND, 0);
|
|
glBlendFunc(GL_SRC_ALPHA, GL_ONE);
|
|
|
|
_program->activate();
|
|
|
|
_program->setUniform(
|
|
"screenSize",
|
|
glm::vec2(global::renderEngine->renderingResolution())
|
|
);
|
|
|
|
_program->setUniform(_uniformCache.cameraPos, data.camera.positionVec3());
|
|
_program->setUniform(
|
|
_uniformCache.cameraLookup,
|
|
glm::vec3(data.camera.lookUpVectorWorldSpace())
|
|
);
|
|
_program->setUniform(_uniformCache.renderOption, _renderOption.value());
|
|
_program->setUniform(_uniformCache.modelMatrix, modelMatrix);
|
|
_program->setUniform(
|
|
_uniformCache.cameraViewProjectionMatrix,
|
|
glm::mat4(
|
|
glm::dmat4(data.camera.projectionMatrix()) * data.camera.combinedViewMatrix()
|
|
)
|
|
);
|
|
_program->setUniform(_uniformCache.minBillboardSize, _billboardMinSize); // in pixels
|
|
_program->setUniform(_uniformCache.maxBillboardSize, _billboardMaxSize); // in pixels
|
|
_program->setUniform(_uniformCache.color, _pointColor);
|
|
_program->setUniform(_uniformCache.alphaValue, _opacity);
|
|
_program->setUniform(_uniformCache.scaleFactor, _scaleFactor);
|
|
_program->setUniform(_uniformCache.up, glm::vec3(orthoUp));
|
|
_program->setUniform(_uniformCache.right, glm::vec3(orthoRight));
|
|
_program->setUniform(_uniformCache.fadeInValue, fadeInVariable);
|
|
|
|
_program->setUniform(
|
|
_uniformCache.correctionSizeEndDistance,
|
|
_correctionSizeEndDistance
|
|
);
|
|
_program->setUniform(_uniformCache.correctionSizeFactor, _correctionSizeFactor);
|
|
|
|
_program->setUniform(_uniformCache.enabledRectSizeControl, _pixelSizeControl);
|
|
|
|
_program->setUniform(_uniformCache.hasDvarScaling, _hasDatavarSize);
|
|
|
|
GLint viewport[4];
|
|
glGetIntegerv(GL_VIEWPORT, viewport);
|
|
_program->setUniform(_uniformCache.screenSize, glm::vec2(viewport[2], viewport[3]));
|
|
|
|
ghoul::opengl::TextureUnit textureUnit;
|
|
textureUnit.activate();
|
|
if (_hasPolygon) {
|
|
glBindTexture(GL_TEXTURE_2D, _pTexture);
|
|
}
|
|
else if (_spriteTexture) {
|
|
_spriteTexture->bind();
|
|
}
|
|
_program->setUniform(_uniformCache.spriteTexture, textureUnit);
|
|
_program->setUniform(_uniformCache.hasColormap, _hasColorMapFile);
|
|
|
|
glBindVertexArray(_vao);
|
|
const GLsizei nAstronomicalObjects = static_cast<GLsizei>(
|
|
_fullData.size() / _nValuesPerAstronomicalObject
|
|
);
|
|
glDrawArrays(GL_POINTS, 0, nAstronomicalObjects);
|
|
|
|
glBindVertexArray(0);
|
|
_program->deactivate();
|
|
|
|
global::renderEngine->openglStateCache().resetBlendState();
|
|
global::renderEngine->openglStateCache().resetDepthState();
|
|
}
|
|
|
|
void RenderableBillboardsCloud::renderLabels(const RenderData& data,
|
|
const glm::dmat4& modelViewProjectionMatrix,
|
|
const glm::dvec3& orthoRight,
|
|
const glm::dvec3& orthoUp,
|
|
float fadeInVariable)
|
|
{
|
|
float scale = 0.f;
|
|
switch (_unit) {
|
|
case Meter:
|
|
scale = 1.f;
|
|
break;
|
|
case Kilometer:
|
|
scale = 1e3f;
|
|
break;
|
|
case Parsec:
|
|
scale = static_cast<float>(PARSEC);
|
|
break;
|
|
case Kiloparsec:
|
|
scale = static_cast<float>(1e3 * PARSEC);
|
|
break;
|
|
case Megaparsec:
|
|
scale = static_cast<float>(1e6 * PARSEC);
|
|
break;
|
|
case Gigaparsec:
|
|
scale = static_cast<float>(1e9 * PARSEC);
|
|
break;
|
|
case GigalightYears:
|
|
scale = static_cast<float>(306391534.73091 * PARSEC);
|
|
break;
|
|
}
|
|
|
|
glm::vec4 textColor = glm::vec4(
|
|
glm::vec3(_textColor),
|
|
_textOpacity * fadeInVariable
|
|
);
|
|
|
|
ghoul::fontrendering::FontRenderer::ProjectedLabelsInformation labelInfo;
|
|
labelInfo.orthoRight = orthoRight;
|
|
labelInfo.orthoUp = orthoUp;
|
|
labelInfo.minSize = static_cast<int>(_textMinSize);
|
|
labelInfo.maxSize = static_cast<int>(_textMaxSize);
|
|
labelInfo.cameraPos = data.camera.positionVec3();
|
|
labelInfo.cameraLookUp = data.camera.lookUpVectorWorldSpace();
|
|
labelInfo.renderType = _renderOption;
|
|
labelInfo.mvpMatrix = modelViewProjectionMatrix;
|
|
labelInfo.scale = pow(10.f, _textSize);
|
|
labelInfo.enableDepth = true;
|
|
labelInfo.enableFalseDepth = false;
|
|
|
|
for (const std::pair<glm::vec3, std::string>& pair : _labelData) {
|
|
//glm::vec3 scaledPos(_transformationMatrix * glm::dvec4(pair.first, 1.0));
|
|
glm::vec3 scaledPos(pair.first);
|
|
scaledPos *= scale;
|
|
ghoul::fontrendering::FontRenderer::defaultProjectionRenderer().render(
|
|
*_font,
|
|
scaledPos,
|
|
pair.second,
|
|
textColor,
|
|
labelInfo
|
|
);
|
|
}
|
|
}
|
|
|
|
void RenderableBillboardsCloud::render(const RenderData& data, RendererTasks&) {
|
|
float scale = 0.f;
|
|
switch (_unit) {
|
|
case Meter:
|
|
scale = 1.f;
|
|
break;
|
|
case Kilometer:
|
|
scale = 1e3f;
|
|
break;
|
|
case Parsec:
|
|
scale = static_cast<float>(PARSEC);
|
|
break;
|
|
case Kiloparsec:
|
|
scale = static_cast<float>(1e3 * PARSEC);
|
|
break;
|
|
case Megaparsec:
|
|
scale = static_cast<float>(1e6 * PARSEC);
|
|
break;
|
|
case Gigaparsec:
|
|
scale = static_cast<float>(1e9 * PARSEC);
|
|
break;
|
|
case GigalightYears:
|
|
scale = static_cast<float>(306391534.73091 * PARSEC);
|
|
break;
|
|
}
|
|
|
|
float fadeInVariable = 1.f;
|
|
if (!_disableFadeInDistance) {
|
|
float distCamera = static_cast<float>(glm::length(data.camera.positionVec3()));
|
|
const glm::vec2 fadeRange = _fadeInDistance;
|
|
const float a = 1.f / ((fadeRange.y - fadeRange.x) * scale);
|
|
const float b = -(fadeRange.x / (fadeRange.y - fadeRange.x));
|
|
const float funcValue = a * distCamera + b;
|
|
fadeInVariable *= funcValue > 1.f ? 1.f : funcValue;
|
|
|
|
if (funcValue < 0.01f) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
glm::dmat4 modelMatrix =
|
|
glm::translate(glm::dmat4(1.0), data.modelTransform.translation) * // Translation
|
|
glm::dmat4(data.modelTransform.rotation) * // Spice rotation
|
|
glm::scale(glm::dmat4(1.0), glm::dvec3(data.modelTransform.scale));
|
|
|
|
glm::dmat4 modelViewMatrix = data.camera.combinedViewMatrix() * modelMatrix;
|
|
glm::mat4 projectionMatrix = data.camera.projectionMatrix();
|
|
|
|
glm::dmat4 modelViewProjectionMatrix = glm::dmat4(projectionMatrix) * modelViewMatrix;
|
|
|
|
glm::dvec3 cameraViewDirectionWorld = -data.camera.viewDirectionWorldSpace();
|
|
glm::dvec3 cameraUpDirectionWorld = data.camera.lookUpVectorWorldSpace();
|
|
glm::dvec3 orthoRight = glm::normalize(
|
|
glm::cross(cameraUpDirectionWorld, cameraViewDirectionWorld)
|
|
);
|
|
if (orthoRight == glm::dvec3(0.0)) {
|
|
glm::dvec3 otherVector(
|
|
cameraUpDirectionWorld.y,
|
|
cameraUpDirectionWorld.x,
|
|
cameraUpDirectionWorld.z
|
|
);
|
|
orthoRight = glm::normalize(glm::cross(otherVector, cameraViewDirectionWorld));
|
|
}
|
|
glm::dvec3 orthoUp = glm::normalize(glm::cross(cameraViewDirectionWorld, orthoRight));
|
|
|
|
if (_hasSpeckFile && _drawElements) {
|
|
renderBillboards(
|
|
data,
|
|
modelMatrix,
|
|
orthoRight,
|
|
orthoUp,
|
|
fadeInVariable
|
|
);
|
|
}
|
|
|
|
if (_drawLabels && _hasLabel) {
|
|
renderLabels(
|
|
data,
|
|
modelViewProjectionMatrix,
|
|
orthoRight,
|
|
orthoUp,
|
|
fadeInVariable
|
|
);
|
|
}
|
|
}
|
|
|
|
void RenderableBillboardsCloud::update(const UpdateData&) {
|
|
ZoneScoped
|
|
|
|
if (_dataIsDirty && _hasSpeckFile) {
|
|
ZoneScopedN("Data dirty")
|
|
TracyGpuZone("Data dirty")
|
|
LDEBUG("Regenerating data");
|
|
|
|
createDataSlice();
|
|
|
|
int size = static_cast<int>(_slicedData.size());
|
|
|
|
if (_vao == 0) {
|
|
glGenVertexArrays(1, &_vao);
|
|
LDEBUG(fmt::format("Generating Vertex Array id '{}'", _vao));
|
|
}
|
|
if (_vbo == 0) {
|
|
glGenBuffers(1, &_vbo);
|
|
LDEBUG(fmt::format("Generating Vertex Buffer Object id '{}'", _vbo));
|
|
}
|
|
|
|
glBindVertexArray(_vao);
|
|
glBindBuffer(GL_ARRAY_BUFFER, _vbo);
|
|
glBufferData(
|
|
GL_ARRAY_BUFFER,
|
|
size * sizeof(float),
|
|
&_slicedData[0],
|
|
GL_STATIC_DRAW
|
|
);
|
|
GLint positionAttrib = _program->attributeLocation("in_position");
|
|
|
|
if (_hasColorMapFile && _hasDatavarSize) {
|
|
glEnableVertexAttribArray(positionAttrib);
|
|
glVertexAttribPointer(
|
|
positionAttrib,
|
|
4,
|
|
GL_FLOAT,
|
|
GL_FALSE,
|
|
sizeof(float) * 9,
|
|
nullptr
|
|
);
|
|
|
|
GLint colorMapAttrib = _program->attributeLocation("in_colormap");
|
|
glEnableVertexAttribArray(colorMapAttrib);
|
|
glVertexAttribPointer(
|
|
colorMapAttrib,
|
|
4,
|
|
GL_FLOAT,
|
|
GL_FALSE,
|
|
sizeof(float) * 9,
|
|
reinterpret_cast<void*>(sizeof(float) * 4)
|
|
);
|
|
|
|
GLint dvarScalingAttrib = _program->attributeLocation("in_dvarScaling");
|
|
glEnableVertexAttribArray(dvarScalingAttrib);
|
|
glVertexAttribPointer(
|
|
dvarScalingAttrib,
|
|
1,
|
|
GL_FLOAT,
|
|
GL_FALSE,
|
|
sizeof(float) * 9,
|
|
reinterpret_cast<void*>(sizeof(float) * 8)
|
|
);
|
|
}
|
|
else if (_hasColorMapFile) {
|
|
glEnableVertexAttribArray(positionAttrib);
|
|
glVertexAttribPointer(
|
|
positionAttrib,
|
|
4,
|
|
GL_FLOAT,
|
|
GL_FALSE,
|
|
sizeof(float) * 8,
|
|
nullptr
|
|
);
|
|
|
|
GLint colorMapAttrib = _program->attributeLocation("in_colormap");
|
|
glEnableVertexAttribArray(colorMapAttrib);
|
|
glVertexAttribPointer(
|
|
colorMapAttrib,
|
|
4,
|
|
GL_FLOAT,
|
|
GL_FALSE,
|
|
sizeof(float) * 8,
|
|
reinterpret_cast<void*>(sizeof(float) * 4)
|
|
);
|
|
}
|
|
else if (_hasDatavarSize) {
|
|
glEnableVertexAttribArray(positionAttrib);
|
|
glVertexAttribPointer(
|
|
positionAttrib,
|
|
4,
|
|
GL_FLOAT,
|
|
GL_FALSE,
|
|
sizeof(float) * 8,
|
|
nullptr
|
|
);
|
|
|
|
GLint dvarScalingAttrib = _program->attributeLocation("in_dvarScaling");
|
|
glEnableVertexAttribArray(dvarScalingAttrib);
|
|
glVertexAttribPointer(
|
|
dvarScalingAttrib,
|
|
1,
|
|
GL_FLOAT,
|
|
GL_FALSE,
|
|
sizeof(float) * 5,
|
|
reinterpret_cast<void*>(sizeof(float) * 4)
|
|
);
|
|
}
|
|
else {
|
|
glEnableVertexAttribArray(positionAttrib);
|
|
glVertexAttribPointer(
|
|
positionAttrib,
|
|
4,
|
|
GL_FLOAT,
|
|
GL_FALSE,
|
|
0,
|
|
nullptr
|
|
);
|
|
}
|
|
|
|
glBindVertexArray(0);
|
|
|
|
_dataIsDirty = false;
|
|
}
|
|
|
|
if (_hasSpriteTexture && _spriteTextureIsDirty && !_spriteTexturePath.value().empty())
|
|
{
|
|
ZoneScopedN("Sprite texture")
|
|
TracyGpuZone("Sprite texture")
|
|
|
|
ghoul::opengl::Texture* texture = _spriteTexture;
|
|
|
|
unsigned int hash = ghoul::hashCRC32File(_spriteTexturePath);
|
|
|
|
_spriteTexture = DigitalUniverseModule::TextureManager.request(
|
|
std::to_string(hash),
|
|
[path = _spriteTexturePath]() -> std::unique_ptr<ghoul::opengl::Texture> {
|
|
LINFO(fmt::format("Loaded texture from '{}'", absPath(path)));
|
|
std::unique_ptr<ghoul::opengl::Texture> t =
|
|
ghoul::io::TextureReader::ref().loadTexture(absPath(path));
|
|
t->uploadTexture();
|
|
t->setFilter(ghoul::opengl::Texture::FilterMode::AnisotropicMipMap);
|
|
t->purgeFromRAM();
|
|
return t;
|
|
}
|
|
);
|
|
|
|
DigitalUniverseModule::TextureManager.release(texture);
|
|
_spriteTextureIsDirty = false;
|
|
}
|
|
}
|
|
|
|
bool RenderableBillboardsCloud::loadData() {
|
|
bool success = true;
|
|
|
|
success &= loadSpeckData();
|
|
|
|
if (_hasColorMapFile) {
|
|
if (!_hasSpeckFile) {
|
|
success = true;
|
|
}
|
|
success &= readColorMapFile();
|
|
}
|
|
|
|
success &= loadLabelData();
|
|
|
|
return success;
|
|
}
|
|
|
|
bool RenderableBillboardsCloud::loadSpeckData() {
|
|
if (!_hasSpeckFile) {
|
|
return true;
|
|
}
|
|
bool success = true;
|
|
const std::string& cachedFile = FileSys.cacheManager()->cachedFilename(
|
|
ghoul::filesystem::File(_speckFile),
|
|
"RenderableDUMeshes|" + identifier(),
|
|
ghoul::filesystem::CacheManager::Persistent::Yes
|
|
);
|
|
|
|
const bool hasCachedFile = FileSys.fileExists(cachedFile);
|
|
if (hasCachedFile) {
|
|
LINFO(fmt::format(
|
|
"Cached file '{}' used for Speck file '{}'",
|
|
cachedFile, _speckFile
|
|
));
|
|
|
|
success = loadCachedFile(cachedFile);
|
|
if (success) {
|
|
return true;
|
|
}
|
|
else {
|
|
FileSys.cacheManager()->removeCacheFile(_speckFile);
|
|
// Intentional fall-through to the 'else' to generate the cache
|
|
// file for the next run
|
|
}
|
|
}
|
|
else {
|
|
LINFO(fmt::format("Cache for Speck file '{}' not found", _speckFile));
|
|
}
|
|
LINFO(fmt::format("Loading Speck file '{}'", _speckFile));
|
|
|
|
success = readSpeckFile();
|
|
if (!success) {
|
|
return false;
|
|
}
|
|
|
|
success &= saveCachedFile(cachedFile);
|
|
return success;
|
|
}
|
|
|
|
bool RenderableBillboardsCloud::loadLabelData() {
|
|
if (_labelFile.empty()) {
|
|
return true;
|
|
}
|
|
bool success = true;
|
|
// I disabled the cache as it didn't work on Mac --- abock
|
|
const std::string& cachedFile = FileSys.cacheManager()->cachedFilename(
|
|
ghoul::filesystem::File(_labelFile),
|
|
ghoul::filesystem::CacheManager::Persistent::Yes
|
|
);
|
|
if (!_hasSpeckFile && !_hasColorMapFile) {
|
|
success = true;
|
|
}
|
|
const bool hasCachedFile = FileSys.fileExists(cachedFile);
|
|
if (hasCachedFile) {
|
|
LINFO(fmt::format(
|
|
"Cached file '{}' used for Label file '{}'",
|
|
cachedFile, _labelFile
|
|
));
|
|
|
|
success &= loadCachedFile(cachedFile);
|
|
if (!success) {
|
|
FileSys.cacheManager()->removeCacheFile(_labelFile);
|
|
// Intentional fall-through to the 'else' to generate the cache
|
|
// file for the next run
|
|
}
|
|
}
|
|
else {
|
|
LINFO(fmt::format("Cache for Label file '{}' not found", _labelFile));
|
|
LINFO(fmt::format("Loading Label file '{}'", _labelFile));
|
|
|
|
success &= readLabelFile();
|
|
if (!success) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return success;
|
|
}
|
|
|
|
bool RenderableBillboardsCloud::readSpeckFile() {
|
|
std::ifstream file(_speckFile);
|
|
if (!file.good()) {
|
|
LERROR(fmt::format("Failed to open Speck file '{}'", _speckFile));
|
|
return false;
|
|
}
|
|
|
|
_nValuesPerAstronomicalObject = 0;
|
|
|
|
// The beginning of the speck file has a header that either contains comments
|
|
// (signaled by a preceding '#') or information about the structure of the file
|
|
// (signaled by the keywords 'datavar', 'texturevar', and 'texture')
|
|
std::string line;
|
|
while (true) {
|
|
std::getline(file, line);
|
|
|
|
// Guard against wrong line endings (copying files from Windows to Mac) causes
|
|
// lines to have a final \r
|
|
if (!line.empty() && line.back() == '\r') {
|
|
line = line.substr(0, line.length() - 1);
|
|
}
|
|
|
|
if (line.empty() || line[0] == '#') {
|
|
continue;
|
|
}
|
|
|
|
if (line.substr(0, 7) != "datavar" &&
|
|
line.substr(0, 10) != "texturevar" &&
|
|
line.substr(0, 7) != "texture" &&
|
|
line.substr(0, 10) != "polyorivar" &&
|
|
line.substr(0, 10) != "maxcomment")
|
|
{
|
|
// Started reading data
|
|
break;
|
|
}
|
|
|
|
if (line.substr(0, 7) == "datavar") {
|
|
// datavar lines are structured as follows:
|
|
// datavar # description
|
|
// where # is the index of the data variable; so if we repeatedly overwrite
|
|
// the 'nValues' variable with the latest index, we will end up with the total
|
|
// number of values (+3 since X Y Z are not counted in the Speck file index)
|
|
std::stringstream str(line);
|
|
|
|
std::string dummy;
|
|
str >> dummy; // command
|
|
str >> _nValuesPerAstronomicalObject; // variable index
|
|
dummy.clear();
|
|
str >> dummy; // variable name
|
|
|
|
_variableDataPositionMap.insert({ dummy, _nValuesPerAstronomicalObject });
|
|
|
|
// We want the number, but the index is 0 based
|
|
_nValuesPerAstronomicalObject += 1;
|
|
}
|
|
}
|
|
|
|
_nValuesPerAstronomicalObject += 3; // X Y Z are not counted in the Speck file indices
|
|
|
|
|
|
|
|
do {
|
|
// Guard against wrong line endings (copying files from Windows to Mac) causes
|
|
// lines to have a final \r
|
|
if (!line.empty() && line.back() == '\r') {
|
|
line = line.substr(0, line.length() - 1);
|
|
}
|
|
|
|
if (line.empty()) {
|
|
std::getline(file, line);
|
|
continue;
|
|
}
|
|
else if (line[0] == '#') {
|
|
std::getline(file, line);
|
|
continue;
|
|
}
|
|
|
|
std::stringstream str(line);
|
|
std::vector<float> values(_nValuesPerAstronomicalObject);
|
|
|
|
for (int i = 0; i < _nValuesPerAstronomicalObject; ++i) {
|
|
str >> values[i];
|
|
}
|
|
|
|
_fullData.insert(_fullData.end(), values.begin(), values.end());
|
|
|
|
// reads new line
|
|
std::getline(file, line);
|
|
} while (!file.eof());
|
|
|
|
return true;
|
|
}
|
|
|
|
bool RenderableBillboardsCloud::readColorMapFile() {
|
|
std::string _file = _colorMapFile;
|
|
std::ifstream file(_file);
|
|
if (!file.good()) {
|
|
LERROR(fmt::format("Failed to open Color Map file '{}'", _file));
|
|
return false;
|
|
}
|
|
|
|
std::size_t numberOfColors = 0;
|
|
|
|
// The beginning of the speck file has a header that either contains comments
|
|
// (signaled by a preceding '#') or information about the structure of the file
|
|
// (signaled by the keywords 'datavar', 'texturevar', and 'texture')
|
|
std::string line;
|
|
while (true) {
|
|
// std::streampos position = file.tellg();
|
|
std::getline(file, line);
|
|
|
|
if (line[0] == '#' || line.empty()) {
|
|
continue;
|
|
}
|
|
|
|
// Initial number of colors
|
|
std::locale loc;
|
|
if (std::isdigit(line[0], loc)) {
|
|
std::string::size_type sz;
|
|
numberOfColors = std::stoi(line, &sz);
|
|
break;
|
|
}
|
|
else if (file.eof()) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
for (size_t i = 0; i < numberOfColors; ++i) {
|
|
std::getline(file, line);
|
|
std::stringstream str(line);
|
|
|
|
glm::vec4 color;
|
|
// Each color in the colormap must be defined as (R,G,B,A)
|
|
for (int j = 0; j < 4; ++j) {
|
|
str >> color[j];
|
|
}
|
|
|
|
_colorMapData.push_back(color);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool RenderableBillboardsCloud::readLabelFile() {
|
|
std::string _file = _labelFile;
|
|
std::ifstream file(_file);
|
|
if (!file.good()) {
|
|
LERROR(fmt::format("Failed to open Label file '{}'", _file));
|
|
return false;
|
|
}
|
|
|
|
// The beginning of the speck file has a header that either contains comments
|
|
// (signaled by a preceding '#') or information about the structure of the file
|
|
// (signaled by the keywords 'datavar', 'texturevar', and 'texture')
|
|
std::string line;
|
|
while (true) {
|
|
std::streampos position = file.tellg();
|
|
std::getline(file, line);
|
|
|
|
// Guard against wrong line endings (copying files from Windows to Mac) causes
|
|
// lines to have a final \r
|
|
if (!line.empty() && line.back() == '\r') {
|
|
line = line.substr(0, line.length() - 1);
|
|
}
|
|
|
|
if (line.empty() || line[0] == '#') {
|
|
continue;
|
|
}
|
|
|
|
if (line.substr(0, 9) != "textcolor") {
|
|
// we read a line that doesn't belong to the header, so we have to jump back
|
|
// before the beginning of the current line
|
|
file.seekg(position);
|
|
continue;
|
|
}
|
|
|
|
if (line.substr(0, 9) == "textcolor") {
|
|
// textcolor lines are structured as follows:
|
|
// textcolor # description
|
|
// where # is color text defined in configuration file
|
|
std::stringstream str(line);
|
|
|
|
// TODO: handle cases of labels with different colors
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
do {
|
|
std::vector<float> values(_nValuesPerAstronomicalObject);
|
|
|
|
std::getline(file, line);
|
|
|
|
// Guard against wrong line endings (copying files from Windows to Mac) causes
|
|
// lines to have a final \r
|
|
if (!line.empty() && line.back() == '\r') {
|
|
line = line.substr(0, line.length() - 1);
|
|
}
|
|
|
|
if (line.empty()) {
|
|
continue;
|
|
}
|
|
|
|
std::stringstream str(line);
|
|
|
|
glm::vec3 position = glm::vec3(0.f);
|
|
for (int j = 0; j < 3; ++j) {
|
|
str >> position[j];
|
|
}
|
|
|
|
std::string dummy;
|
|
str >> dummy; // text keyword
|
|
|
|
std::string label;
|
|
str >> label;
|
|
dummy.clear();
|
|
|
|
while (str >> dummy) {
|
|
if (dummy == "#") {
|
|
break;
|
|
}
|
|
|
|
label += " " + dummy;
|
|
dummy.clear();
|
|
}
|
|
|
|
glm::vec3 transformedPos = glm::vec3(
|
|
_transformationMatrix * glm::dvec4(position, 1.0)
|
|
);
|
|
_labelData.emplace_back(std::make_pair(transformedPos, label));
|
|
} while (!file.eof());
|
|
|
|
return true;
|
|
}
|
|
|
|
bool RenderableBillboardsCloud::loadCachedFile(const std::string& file) {
|
|
std::ifstream fileStream(file, std::ifstream::binary);
|
|
if (!fileStream.good()) {
|
|
LERROR(fmt::format("Error opening file '{}' for loading cache file", file));
|
|
return false;
|
|
}
|
|
int8_t version = 0;
|
|
fileStream.read(reinterpret_cast<char*>(&version), sizeof(int8_t));
|
|
if (version != CurrentCacheVersion) {
|
|
LINFO("The format of the cached file has changed: deleting old cache");
|
|
fileStream.close();
|
|
FileSys.deleteFile(file);
|
|
return false;
|
|
}
|
|
|
|
int32_t nValues = 0;
|
|
fileStream.read(reinterpret_cast<char*>(&nValues), sizeof(int32_t));
|
|
fileStream.read(
|
|
reinterpret_cast<char*>(&_nValuesPerAstronomicalObject),
|
|
sizeof(int32_t)
|
|
);
|
|
|
|
_fullData.resize(nValues);
|
|
fileStream.read(
|
|
reinterpret_cast<char*>(&_fullData[0]),
|
|
nValues * sizeof(_fullData[0])
|
|
);
|
|
|
|
if (_hasColorMapFile) {
|
|
int32_t nItems = 0;
|
|
fileStream.read(reinterpret_cast<char*>(&nItems), sizeof(int32_t));
|
|
|
|
for (int i = 0; i < nItems; ++i) {
|
|
int32_t keySize = 0;
|
|
fileStream.read(reinterpret_cast<char*>(&keySize), sizeof(int32_t));
|
|
std::vector<char> buffer(keySize);
|
|
fileStream.read(buffer.data(), keySize);
|
|
|
|
std::string key(buffer.begin(), buffer.end());
|
|
int32_t value = 0;
|
|
fileStream.read(reinterpret_cast<char*>(&value), sizeof(int32_t));
|
|
|
|
_variableDataPositionMap.insert({ key, value });
|
|
}
|
|
}
|
|
|
|
bool success = fileStream.good();
|
|
return success;
|
|
}
|
|
|
|
bool RenderableBillboardsCloud::saveCachedFile(const std::string& file) const {
|
|
std::ofstream fileStream(file, std::ofstream::binary);
|
|
if (!fileStream.good()) {
|
|
LERROR(fmt::format("Error opening file '{}' for save cache file", file));
|
|
return false;
|
|
}
|
|
fileStream.write(reinterpret_cast<const char*>(&CurrentCacheVersion), sizeof(int8_t));
|
|
|
|
int32_t nValues = static_cast<int32_t>(_fullData.size());
|
|
if (nValues == 0) {
|
|
LERROR("Error writing cache: No values were loaded");
|
|
return false;
|
|
}
|
|
fileStream.write(reinterpret_cast<const char*>(&nValues), sizeof(int32_t));
|
|
|
|
int32_t nValuesPerAstronomicalObject = static_cast<int32_t>(
|
|
_nValuesPerAstronomicalObject
|
|
);
|
|
fileStream.write(
|
|
reinterpret_cast<const char*>(&nValuesPerAstronomicalObject),
|
|
sizeof(int32_t)
|
|
);
|
|
|
|
size_t nBytes = nValues * sizeof(_fullData[0]);
|
|
fileStream.write(reinterpret_cast<const char*>(&_fullData[0]), nBytes);
|
|
|
|
if (_hasColorMapFile) {
|
|
int32_t nItems = static_cast<int32_t>(_variableDataPositionMap.size());
|
|
fileStream.write(reinterpret_cast<const char*>(&nItems), sizeof(int32_t));
|
|
|
|
for (const std::pair<const std::string, int>& pair : _variableDataPositionMap) {
|
|
int32_t keySize = static_cast<int32_t>(pair.first.size());
|
|
fileStream.write(reinterpret_cast<const char*>(&keySize), sizeof(int32_t));
|
|
fileStream.write(pair.first.data(), keySize);
|
|
int32_t value = static_cast<int32_t>(pair.second);
|
|
fileStream.write(reinterpret_cast<const char*>(&value), sizeof(int32_t));
|
|
}
|
|
}
|
|
|
|
return fileStream.good();
|
|
}
|
|
|
|
void RenderableBillboardsCloud::createDataSlice() {
|
|
ZoneScoped
|
|
|
|
_slicedData.clear();
|
|
|
|
if (_fullData.empty() || _nValuesPerAstronomicalObject == 0) {
|
|
return;
|
|
}
|
|
|
|
if (_hasColorMapFile) {
|
|
_slicedData.reserve(8 * (_fullData.size() / _nValuesPerAstronomicalObject));
|
|
}
|
|
else {
|
|
_slicedData.reserve(4 * (_fullData.size() / _nValuesPerAstronomicalObject));
|
|
}
|
|
|
|
// what datavar in use for the index color
|
|
int colorMapInUse =
|
|
_hasColorMapFile ? _variableDataPositionMap[_colorOptionString] : 0;
|
|
|
|
// what datavar in use for the size scaling (if present)
|
|
int sizeScalingInUse = _hasDatavarSize ?
|
|
_variableDataPositionMap[_datavarSizeOptionString] : -1;
|
|
|
|
auto addDatavarSizeScalling = [&](size_t i, int datavarInUse) {
|
|
_slicedData.push_back(_fullData[i + 3 + datavarInUse]);
|
|
};
|
|
|
|
auto addPosition = [&](const glm::vec4 &pos) {
|
|
for (int j = 0; j < 4; ++j) {
|
|
_slicedData.push_back(pos[j]);
|
|
}
|
|
};
|
|
|
|
float minColorIdx = std::numeric_limits<float>::max();
|
|
float maxColorIdx = std::numeric_limits<float>::min();
|
|
|
|
for (size_t i = 0; i < _fullData.size(); i += _nValuesPerAstronomicalObject) {
|
|
float colorIdx = _fullData[i + 3 + colorMapInUse];
|
|
maxColorIdx = colorIdx >= maxColorIdx ? colorIdx : maxColorIdx;
|
|
minColorIdx = colorIdx < minColorIdx ? colorIdx : minColorIdx;
|
|
}
|
|
|
|
float biggestCoord = -1.f;
|
|
for (size_t i = 0; i < _fullData.size(); i += _nValuesPerAstronomicalObject) {
|
|
glm::dvec4 transformedPos = _transformationMatrix * glm::dvec4(
|
|
_fullData[i + 0],
|
|
_fullData[i + 1],
|
|
_fullData[i + 2],
|
|
1.0
|
|
);
|
|
// W-normalization
|
|
transformedPos /= transformedPos.w;
|
|
glm::vec4 position(glm::vec3(transformedPos), static_cast<float>(_unit));
|
|
|
|
if (_hasColorMapFile) {
|
|
for (int j = 0; j < 4; ++j) {
|
|
_slicedData.push_back(position[j]);
|
|
biggestCoord = biggestCoord < position[j] ? position[j] : biggestCoord;
|
|
}
|
|
// Note: if exact colormap option is not selected, the first color and the
|
|
// last color in the colormap file are the outliers colors.
|
|
float variableColor = _fullData[i + 3 + colorMapInUse];
|
|
|
|
float cmax, cmin;
|
|
if (_colorRangeData.empty()) {
|
|
cmax = maxColorIdx; // Max value of datavar used for the index color
|
|
cmin = minColorIdx; // Min value of datavar used for the index color
|
|
}
|
|
else {
|
|
glm::vec2 currentColorRange = _colorRangeData[_colorOption.value()];
|
|
cmax = currentColorRange.y;
|
|
cmin = currentColorRange.x;
|
|
}
|
|
|
|
if (_isColorMapExact) {
|
|
int colorIndex = variableColor + cmin;
|
|
for (int j = 0; j < 4; ++j) {
|
|
_slicedData.push_back(_colorMapData[colorIndex][j]);
|
|
}
|
|
}
|
|
else {
|
|
if (_useLinearFiltering) {
|
|
const float value = variableColor;
|
|
|
|
float valueT = (value - cmin) / (cmax - cmin); // in [0, 1)
|
|
valueT = std::clamp(valueT, 0.f, 1.f);
|
|
|
|
const float idx = valueT * (_colorMapData.size() - 1);
|
|
const int floorIdx = static_cast<int>(std::floor(idx));
|
|
const int ceilIdx = static_cast<int>(std::ceil(idx));
|
|
|
|
const glm::vec4 floorColor = _colorMapData[floorIdx];
|
|
const glm::vec4 ceilColor = _colorMapData[ceilIdx];
|
|
|
|
if (floorColor != ceilColor) {
|
|
const glm::vec4 c = floorColor + idx * (ceilColor - floorColor);
|
|
_slicedData.push_back(c.r);
|
|
_slicedData.push_back(c.g);
|
|
_slicedData.push_back(c.b);
|
|
_slicedData.push_back(c.a);
|
|
}
|
|
else {
|
|
_slicedData.push_back(floorColor.r);
|
|
_slicedData.push_back(floorColor.g);
|
|
_slicedData.push_back(floorColor.b);
|
|
_slicedData.push_back(floorColor.a);
|
|
}
|
|
}
|
|
else {
|
|
float ncmap = static_cast<float>(_colorMapData.size());
|
|
float normalization = ((cmax != cmin) && (ncmap > 2)) ?
|
|
(ncmap - 2) / (cmax - cmin) : 0;
|
|
int colorIndex = (variableColor - cmin) * normalization + 1;
|
|
colorIndex = colorIndex < 0 ? 0 : colorIndex;
|
|
colorIndex = colorIndex >= ncmap ? ncmap - 1 : colorIndex;
|
|
|
|
for (int j = 0; j < 4; ++j) {
|
|
_slicedData.push_back(_colorMapData[colorIndex][j]);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (_hasDatavarSize) {
|
|
addDatavarSizeScalling(i, sizeScalingInUse);
|
|
}
|
|
}
|
|
else if (_hasDatavarSize) {
|
|
addDatavarSizeScalling(i, sizeScalingInUse);
|
|
addPosition(position);
|
|
}
|
|
else {
|
|
addPosition(position);
|
|
}
|
|
}
|
|
_fadeInDistance.setMaxValue(glm::vec2(10.f * biggestCoord));
|
|
}
|
|
|
|
void RenderableBillboardsCloud::createPolygonTexture() {
|
|
ZoneScoped
|
|
|
|
LDEBUG("Creating Polygon Texture");
|
|
|
|
glGenTextures(1, &_pTexture);
|
|
glBindTexture(GL_TEXTURE_2D, _pTexture);
|
|
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
|
|
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
|
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
|
|
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
|
|
// Stopped using a buffer object for GL_PIXEL_UNPACK_BUFFER
|
|
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
|
|
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, 256, 256, 0, GL_RGBA, GL_BYTE, nullptr);
|
|
|
|
renderToTexture(_pTexture, 256, 256);
|
|
}
|
|
|
|
void RenderableBillboardsCloud::renderToTexture(GLuint textureToRenderTo,
|
|
GLuint textureWidth, GLuint textureHeight)
|
|
{
|
|
LDEBUG("Rendering to Texture");
|
|
|
|
// Saves initial Application's OpenGL State
|
|
GLint defaultFBO;
|
|
GLint viewport[4];
|
|
glGetIntegerv(GL_FRAMEBUFFER_BINDING, &defaultFBO);
|
|
glGetIntegerv(GL_VIEWPORT, viewport);
|
|
|
|
GLuint textureFBO;
|
|
glGenFramebuffers(1, &textureFBO);
|
|
glBindFramebuffer(GL_FRAMEBUFFER, textureFBO);
|
|
GLenum drawBuffers[1] = { GL_COLOR_ATTACHMENT0 };
|
|
glDrawBuffers(1, drawBuffers);
|
|
|
|
glFramebufferTexture(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, textureToRenderTo, 0);
|
|
|
|
glViewport(viewport[0], viewport[1], textureWidth, textureHeight);
|
|
|
|
loadPolygonGeometryForRendering();
|
|
renderPolygonGeometry(_polygonVao);
|
|
|
|
// Restores Applications' OpenGL State
|
|
glBindFramebuffer(GL_FRAMEBUFFER, defaultFBO);
|
|
glViewport(viewport[0], viewport[1], viewport[2], viewport[3]);
|
|
|
|
glDeleteBuffers(1, &_polygonVbo);
|
|
glDeleteVertexArrays(1, &_polygonVao);
|
|
glDeleteFramebuffers(1, &textureFBO);
|
|
}
|
|
|
|
void RenderableBillboardsCloud::loadPolygonGeometryForRendering() {
|
|
glGenVertexArrays(1, &_polygonVao);
|
|
glGenBuffers(1, &_polygonVbo);
|
|
glBindVertexArray(_polygonVao);
|
|
glBindBuffer(GL_ARRAY_BUFFER, _polygonVbo);
|
|
|
|
const GLfloat vertex_data[] = {
|
|
// x y z w
|
|
0.f, 0.f, 0.f, 1.f,
|
|
};
|
|
|
|
glBufferData(GL_ARRAY_BUFFER, sizeof(vertex_data), vertex_data, GL_STATIC_DRAW);
|
|
glVertexAttribPointer(
|
|
0,
|
|
4,
|
|
GL_FLOAT,
|
|
GL_FALSE,
|
|
sizeof(GLfloat) * 4,
|
|
nullptr
|
|
);
|
|
glEnableVertexAttribArray(0);
|
|
glBindVertexArray(0);
|
|
}
|
|
|
|
void RenderableBillboardsCloud::renderPolygonGeometry(GLuint vao) {
|
|
std::unique_ptr<ghoul::opengl::ProgramObject> program =
|
|
ghoul::opengl::ProgramObject::Build(
|
|
"RenderableBillboardsCloud_Polygon",
|
|
absPath("${MODULE_DIGITALUNIVERSE}/shaders/billboardpolygon_vs.glsl"),
|
|
absPath("${MODULE_DIGITALUNIVERSE}/shaders/billboardpolygon_fs.glsl"),
|
|
absPath("${MODULE_DIGITALUNIVERSE}/shaders/billboardpolygon_gs.glsl")
|
|
);
|
|
|
|
program->activate();
|
|
static const float black[] = { 0.f, 0.f, 0.f, 0.f };
|
|
glClearBufferfv(GL_COLOR, 0, black);
|
|
|
|
program->setUniform("sides", _polygonSides);
|
|
program->setUniform("polygonColor", _pointColor);
|
|
|
|
glBindVertexArray(vao);
|
|
glDrawArrays(GL_POINTS, 0, 1);
|
|
glBindVertexArray(0);
|
|
|
|
program->deactivate();
|
|
}
|
|
|
|
} // namespace openspace
|