mirror of
https://github.com/OpenSpace/OpenSpace.git
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325 lines
12 KiB
C++
325 lines
12 KiB
C++
/*****************************************************************************************
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* *
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* OpenSpace *
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* *
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* Copyright (c) 2014-2016 *
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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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// open space includes
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#include <modules/base/rendering/renderableplanet.h>
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#include <openspace/engine/configurationmanager.h>
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#include <openspace/engine/openspaceengine.h>
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#include <openspace/rendering/renderengine.h>
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#include <modules/base/rendering/planetgeometry.h>
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#include <openspace/util/time.h>
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#include <openspace/util/spicemanager.h>
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#include <openspace/scene/scenegraphnode.h>
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#include <ghoul/filesystem/filesystem.h>
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#include <ghoul/misc/assert.h>
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#include <ghoul/io/texture/texturereader.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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#define _USE_MATH_DEFINES
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#include <math.h>
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namespace {
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const std::string _loggerCat = "RenderablePlanet";
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const std::string keyFrame = "Frame";
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const std::string keyGeometry = "Geometry";
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const std::string keyShading = "PerformShading";
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const std::string keyBody = "Body";
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}
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namespace openspace {
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RenderablePlanet::RenderablePlanet(const ghoul::Dictionary& dictionary)
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: Renderable(dictionary)
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, _colorTexturePath("colorTexture", "Color Texture")
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, _nightTexturePath("nightTexture", "Night Texture")
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, _heightMapTexturePath("heightMap", "Heightmap Texture")
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, _heightExaggeration("heightExaggeration", "Height Exaggeration", 1.f, 0.f, 100.f)
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, _programObject(nullptr)
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, _texture(nullptr)
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, _nightTexture(nullptr)
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, _heightMapTexture(nullptr)
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, _geometry(nullptr)
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, _performShading("performShading", "Perform Shading", true)
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, _rotation("rotation", "Rotation", 0, 0, 360)
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, _alpha(1.f)
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, _hasNightTexture(false)
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, _hasHeightTexture(false)
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{
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std::string name;
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bool success = dictionary.getValue(SceneGraphNode::KeyName, name);
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ghoul_assert(success,
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"RenderablePlanet need the '" << SceneGraphNode::KeyName<<"' be specified");
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//std::string path;
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//success = dictionary.getValue(constants::scenegraph::keyPathModule, path);
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//ghoul_assert(success,
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// "RenderablePlanet need the '"<<constants::scenegraph::keyPathModule<<"' be specified");
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ghoul::Dictionary geometryDictionary;
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success = dictionary.getValue(keyGeometry, geometryDictionary);
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if (success) {
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geometryDictionary.setValue(SceneGraphNode::KeyName, name);
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//geometryDictionary.setValue(constants::scenegraph::keyPathModule, path);
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_geometry = planetgeometry::PlanetGeometry::createFromDictionary(geometryDictionary);
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}
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dictionary.getValue(keyFrame, _frame);
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dictionary.getValue(keyBody, _target);
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if (_target != "")
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setBody(_target);
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// TODO: textures need to be replaced by a good system similar to the geometry as soon
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// as the requirements are fixed (ab)
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std::string texturePath = "";
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success = dictionary.getValue("Textures.Color", texturePath);
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if (success)
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_colorTexturePath = absPath(texturePath);
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std::string nightTexturePath = "";
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dictionary.getValue("Textures.Night", nightTexturePath);
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if (nightTexturePath != ""){
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_hasNightTexture = true;
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_nightTexturePath = absPath(nightTexturePath);
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}
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std::string heightMapTexturePath = "";
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dictionary.getValue("Textures.Height", heightMapTexturePath);
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if (heightMapTexturePath != "") {
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_hasHeightTexture = true;
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_heightMapTexturePath = absPath(heightMapTexturePath);
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}
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addPropertySubOwner(_geometry);
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addProperty(_colorTexturePath);
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_colorTexturePath.onChange(std::bind(&RenderablePlanet::loadTexture, this));
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addProperty(_nightTexturePath);
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_nightTexturePath.onChange(std::bind(&RenderablePlanet::loadTexture, this));
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addProperty(_heightMapTexturePath);
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_heightMapTexturePath.onChange(std::bind(&RenderablePlanet::loadTexture, this));
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addProperty(_heightExaggeration);
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if (dictionary.hasKeyAndValue<bool>(keyShading)) {
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bool shading;
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dictionary.getValue(keyShading, shading);
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_performShading = shading;
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}
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addProperty(_performShading);
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// Mainly for debugging purposes @AA
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addProperty(_rotation);
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}
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RenderablePlanet::~RenderablePlanet() {
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}
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bool RenderablePlanet::initialize() {
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RenderEngine& renderEngine = OsEng.renderEngine();
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if (_programObject == nullptr && _hasNightTexture) {
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// Night texture program
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_programObject = renderEngine.buildRenderProgram(
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"nightTextureProgram",
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"${MODULE_BASE}/shaders/nighttexture_vs.glsl",
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"${MODULE_BASE}/shaders/nighttexture_fs.glsl");
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if (!_programObject)
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return false;
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}
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else if (_programObject == nullptr) {
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// pscstandard
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_programObject = renderEngine.buildRenderProgram(
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"pscstandard",
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"${MODULE_BASE}/shaders/pscstandard_vs.glsl",
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"${MODULE_BASE}/shaders/pscstandard_fs.glsl");
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if (!_programObject)
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return false;
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}
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using IgnoreError = ghoul::opengl::ProgramObject::IgnoreError;
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_programObject->setIgnoreSubroutineUniformLocationError(IgnoreError::Yes);
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_programObject->setIgnoreUniformLocationError(IgnoreError::Yes);
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loadTexture();
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_geometry->initialize(this);
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return isReady();
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}
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bool RenderablePlanet::deinitialize() {
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if(_geometry) {
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_geometry->deinitialize();
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delete _geometry;
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}
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RenderEngine& renderEngine = OsEng.renderEngine();
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if (_programObject) {
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renderEngine.removeRenderProgram(_programObject);
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_programObject = nullptr;
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}
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_geometry = nullptr;
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_texture = nullptr;
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_nightTexture = nullptr;
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return true;
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}
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bool RenderablePlanet::isReady() const {
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bool ready = true;
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ready &= (_programObject != nullptr);
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ready &= (_texture != nullptr);
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ready &= (_geometry != nullptr);
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return ready;
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}
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void RenderablePlanet::render(const RenderData& data)
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{
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// activate shader
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_programObject->activate();
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// scale the planet to appropriate size since the planet is a unit sphere
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glm::mat4 transform = glm::mat4(1);
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//earth needs to be rotated for that to work.
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glm::mat4 rot = glm::rotate(transform, static_cast<float>(M_PI_2), glm::vec3(1, 0, 0));
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glm::mat4 roty = glm::rotate(transform, static_cast<float>(M_PI_2), glm::vec3(0, -1, 0));
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glm::mat4 rotProp = glm::rotate(transform, glm::radians(static_cast<float>(_rotation)), glm::vec3(0, 1, 0));
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for (int i = 0; i < 3; i++){
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for (int j = 0; j < 3; j++){
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transform[i][j] = static_cast<float>(_stateMatrix[i][j]);
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}
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}
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transform = transform * rot * roty * rotProp;
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//glm::mat4 modelview = data.camera.viewMatrix()*data.camera.modelMatrix();
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//glm::vec3 camSpaceEye = (-(modelview*data.position.vec4())).xyz;
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double lt;
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glm::dvec3 p =
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SpiceManager::ref().targetPosition("SUN", _target, "GALACTIC", {}, _time, lt);
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psc sun_pos = PowerScaledCoordinate::CreatePowerScaledCoordinate(p.x, p.y, p.z);
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// setup the data to the shader
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// _programObject->setUniform("camdir", camSpaceEye);
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_programObject->setUniform("transparency", _alpha);
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_programObject->setUniform("ViewProjection", data.camera.viewProjectionMatrix());
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_programObject->setUniform("ModelTransform", transform);
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setPscUniforms(*_programObject.get(), data.camera, data.position);
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_programObject->setUniform("_performShading", _performShading);
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_programObject->setUniform("_hasHeightMap", _hasHeightTexture);
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_programObject->setUniform("_heightExaggeration", _heightExaggeration);
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// Bind texture
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ghoul::opengl::TextureUnit dayUnit;
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ghoul::opengl::TextureUnit nightUnit;
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ghoul::opengl::TextureUnit heightUnit;
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dayUnit.activate();
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_texture->bind();
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_programObject->setUniform("texture1", dayUnit);
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// Bind possible night texture
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if (_hasNightTexture) {
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nightUnit.activate();
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_nightTexture->bind();
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_programObject->setUniform("nightTex", nightUnit);
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}
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if (_hasHeightTexture) {
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heightUnit.activate();
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_heightMapTexture->bind();
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_programObject->setUniform("heightTex", heightUnit);
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}
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glEnable(GL_CULL_FACE);
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glCullFace(GL_BACK);
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// render
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_geometry->render();
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// disable shader
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_programObject->deactivate();
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}
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void RenderablePlanet::update(const UpdateData& data){
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// set spice-orientation in accordance to timestamp
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_stateMatrix = SpiceManager::ref().positionTransformMatrix(_frame, "GALACTIC", data.time);
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_time = data.time;
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}
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void RenderablePlanet::loadTexture() {
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_texture = nullptr;
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if (_colorTexturePath.value() != "") {
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_texture = std::move(ghoul::io::TextureReader::ref().loadTexture(absPath(_colorTexturePath)));
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if (_texture) {
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LDEBUG("Loaded texture from '" << _colorTexturePath << "'");
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_texture->uploadTexture();
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// Textures of planets looks much smoother with AnisotropicMipMap rather than linear
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// TODO: AnisotropicMipMap crashes on ATI cards ---abock
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//_texture->setFilter(ghoul::opengl::Texture::FilterMode::AnisotropicMipMap);
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_texture->setFilter(ghoul::opengl::Texture::FilterMode::Linear);
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}
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}
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if (_hasNightTexture) {
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_nightTexture = nullptr;
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if (_nightTexturePath.value() != "") {
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_nightTexture = std::move(ghoul::io::TextureReader::ref().loadTexture(absPath(_nightTexturePath)));
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if (_nightTexture) {
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LDEBUG("Loaded texture from '" << _nightTexturePath << "'");
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_nightTexture->uploadTexture();
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_nightTexture->setFilter(ghoul::opengl::Texture::FilterMode::Linear);
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//_nightTexture->setFilter(ghoul::opengl::Texture::FilterMode::AnisotropicMipMap);
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}
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}
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}
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if (_hasHeightTexture) {
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_heightMapTexture = nullptr;
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if (_heightMapTexturePath.value() != "") {
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_heightMapTexture = std::move(ghoul::io::TextureReader::ref().loadTexture(absPath(_heightMapTexturePath)));
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if (_heightMapTexture) {
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LDEBUG("Loaded texture from '" << _heightMapTexturePath << "'");
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_heightMapTexture->uploadTexture();
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_heightMapTexture->setFilter(ghoul::opengl::Texture::FilterMode::Linear);
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//_nightTexture->setFilter(ghoul::opengl::Texture::FilterMode::AnisotropicMipMap);
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}
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}
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}
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}
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} // namespace openspace
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