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Class RenderableModelProjection, using the geometry position and texture coordinate data instead of reverse engineering the geometry in shader. Adding the shaders used to project and the modified model shader. Adding the new Renderable class to newHorizons module and CMakelist
531 lines
20 KiB
C++
531 lines
20 KiB
C++
/*****************************************************************************************
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* *
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* OpenSpace *
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* *
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* Copyright (c) 2014-2015 *
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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/newhorizons/rendering/renderablemodelprojection.h>
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#include <openspace/util/constants.h>
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#include <ghoul/io/texture/texturereader.h>
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#include <ghoul/opengl/textureunit.h>
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#include <ghoul/filesystem/filesystem.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/engine/openspaceengine.h>
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#include <sgct.h>
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#include "imgui.h"
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#define _USE_MATH_DEFINES
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#include <math.h>
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#include <thread>
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namespace {
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const std::string _loggerCat = "RenderableModelProjection";
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const std::string keySource = "Rotation.Source";
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const std::string keyDestination = "Rotation.Destination";
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const std::string keyBody = "Body";
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const std::string keyGeometry = "Geometry";
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const std::string keyTextureColor = "Textures.Color";
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const std::string keyTextureProject = "Textures.Project";
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const std::string keyTextureDefault = "Textures.Default";
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const std::string keySequenceDir = "Projection.Sequence";
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const std::string keySequenceType = "Projection.SequenceType";
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const std::string keyProjObserver = "Projection.Observer";
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const std::string keyProjTarget = "Projection.Target";
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const std::string keyProjAberration = "Projection.Aberration";
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const std::string keyInstrument = "Instrument.Name";
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const std::string keyInstrumentFovy = "Instrument.Fovy";
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const std::string keyInstrumentAspect = "Instrument.Aspect";
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const std::string keyInstrumentNear = "Instrument.Near";
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const std::string keyInstrumentFar = "Instrument.Far";
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const std::string keyTranslation = "DataInputTranslation";
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const std::string sequenceTypeImage = "image-sequence";
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}
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namespace openspace {
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RenderableModelProjection::RenderableModelProjection(const ghoul::Dictionary& dictionary)
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: Renderable(dictionary)
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, _colorTexturePath("colorTexture", "Color Texture")
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, _projectionTexturePath("projectionTexture", "RGB Texture")
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, _rotationX("rotationX", "RotationX", 0, 0, 360)
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, _rotationY("rotationY", "RotationY", 0, 0, 360)
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, _rotationZ("rotationZ", "RotationZ", 0, 0, 360)
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, _programObject(nullptr)
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, _fboProgramObject(nullptr)
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, _texture(nullptr)
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, _geometry(nullptr)
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, _textureOriginal(nullptr)
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, _textureProj(nullptr)
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, _textureWhiteSquare(nullptr)
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, _alpha(1.f)
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, _performShading("performShading", "Perform Shading", true)
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, _performProjection("performProjection", "Perform Projections", true)
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, _frameCount(0)
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, _programIsDirty(false)
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{
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std::string name;
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bool success = dictionary.getValue(constants::scenegraphnode::keyName, name);
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ghoul_assert(success, "Name was not passed to RenderableModelProjection");
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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(constants::scenegraphnode::keyName, name);
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_geometry = modelgeometry::ModelGeometry::createFromDictionary(geometryDictionary);
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}
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std::string texturePath = "";
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success = dictionary.getValue(keyTextureColor, texturePath);
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if (success)
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_colorTexturePath = absPath(texturePath);
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success = dictionary.getValue(keyTextureProject, texturePath);
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if (success)
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_projectionTexturePath = absPath(texturePath);
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success = dictionary.getValue(keyTextureDefault, texturePath);
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if (success)
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_defaultProjImage = absPath(texturePath);
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addPropertySubOwner(_geometry);
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addProperty(_colorTexturePath);
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addProperty(_projectionTexturePath);
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_colorTexturePath.onChange(std::bind(&RenderableModelProjection::loadTexture, this));
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_projectionTexturePath.onChange(std::bind(&RenderableModelProjection::loadProjectionTexture, this));
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dictionary.getValue(keySource, _source);
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dictionary.getValue(keyDestination, _destination);
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dictionary.getValue(keyBody, _target);
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if (_target != "")
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setBody(_target);
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bool completeSuccess = true;
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completeSuccess &= dictionary.getValue(keyInstrument, _instrumentID);
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completeSuccess &= dictionary.getValue(keyProjObserver, _projectorID);
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completeSuccess &= dictionary.getValue(keyProjTarget, _projecteeID);
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completeSuccess &= dictionary.getValue(keyInstrumentFovy, _fovy);
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completeSuccess &= dictionary.getValue(keyInstrumentAspect, _aspectRatio);
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completeSuccess &= dictionary.getValue(keyInstrumentNear, _nearPlane);
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completeSuccess &= dictionary.getValue(keyInstrumentFar, _farPlane);
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ghoul_assert(completeSuccess, "All neccessary attributes not found in modfile");
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completeSuccess = dictionary.getValue(keyProjAberration, _aberration);
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if (!completeSuccess)
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_aberration = "NONE";
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openspace::SpiceManager::ref().addFrame(_target, _source);
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setBoundingSphere(pss(1.f, 9.f));
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addProperty(_performShading);
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addProperty(_performProjection);
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addProperty(_rotationX);
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addProperty(_rotationY);
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addProperty(_rotationZ);
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SequenceParser* parser;
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bool foundSequence = dictionary.getValue(keySequenceDir, _sequenceSource);
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if (foundSequence) {
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_sequenceSource = absPath(_sequenceSource);
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foundSequence = dictionary.getValue(keySequenceType, _sequenceType);
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//Important: client must define translation-list in mod file IFF playbook
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if (dictionary.hasKey(keyTranslation)) {
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ghoul::Dictionary translationDictionary;
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//get translation dictionary
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dictionary.getValue(keyTranslation, translationDictionary);
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if (_sequenceType == sequenceTypeImage) {
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parser = new LabelParser(_sequenceSource, translationDictionary);
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openspace::ImageSequencer2::ref().runSequenceParser(parser);
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}
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}
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else {
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LWARNING("No translation provided, please make sure all spice calls match playbook!");
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}
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}
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}
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bool RenderableModelProjection::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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return ready;
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}
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bool RenderableModelProjection::initialize() {
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bool completeSuccess = true;
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if (_programObject == nullptr) {
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_programObject = ghoul::opengl::ProgramObject::Build("ModelShader",
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"${MODULES}/newhorizons/shaders/modelShader_vs.glsl",
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"${MODULES}/newhorizons/shaders/modelShader_fs.glsl");
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if (!_programObject)
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return false;
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}
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_programObject->setProgramObjectCallback([&](ghoul::opengl::ProgramObject*) { this->_programIsDirty = true; } );
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if (_fboProgramObject == nullptr) {
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_fboProgramObject = ghoul::opengl::ProgramObject::Build("ProjectionPass",
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"${MODULES}/newhorizons/shaders/projectionPass_vs.glsl",
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"${MODULES}/newhorizons/shaders/projectionPass_fs.glsl");
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if (!_fboProgramObject)
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return false;
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}
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_fboProgramObject->setProgramObjectCallback([&](ghoul::opengl::ProgramObject*) { this->_programIsDirty = true; } );
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loadTexture();
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loadProjectionTexture();
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completeSuccess &= (_texture != nullptr);
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completeSuccess &= (_textureOriginal != nullptr);
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completeSuccess &= (_textureProj != nullptr);
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completeSuccess &= (_textureWhiteSquare != nullptr);
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completeSuccess &= _geometry->initialize(this);
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completeSuccess &= !_source.empty();
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completeSuccess &= !_destination.empty();
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bool gotverts = _geometry->getVertices(&_geometryVertecies) && _geometry->getIndices(&_geometryIndeces);
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if (!gotverts)
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LWARNING("Lack of vertex data from geometry for image projection");
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completeSuccess &= auxiliaryRendertarget();
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return completeSuccess;
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}
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bool RenderableModelProjection::auxiliaryRendertarget() {
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bool completeSuccess = true;
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// set FBO to texture to project to
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glGenFramebuffers(1, &_fboID);
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glBindFramebuffer(GL_FRAMEBUFFER, _fboID);
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glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, *_texture, 0);
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// check FBO status
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GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
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if (status != GL_FRAMEBUFFER_COMPLETE)
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completeSuccess &= false;
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// switch back to window-system-provided framebuffer
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glBindFramebuffer(GL_FRAMEBUFFER, 0);
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int vertexSize = sizeof(modelgeometry::ModelGeometry::Vertex);
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glGenVertexArrays(1, &_vaoID);
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glGenBuffers(1, &_vbo);
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glGenBuffers(1, &_ibo);
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glBindVertexArray(_vaoID);
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glBindBuffer(GL_ARRAY_BUFFER, _vbo);
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glBufferData(GL_ARRAY_BUFFER, _geometryVertecies.size() * vertexSize, &_geometryVertecies[0], GL_STATIC_DRAW);
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glEnableVertexAttribArray(0);
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glEnableVertexAttribArray(1);
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glEnableVertexAttribArray(2);
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glVertexAttribPointer(0, 4, GL_FLOAT, GL_FALSE, vertexSize,
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reinterpret_cast<const GLvoid*>(offsetof(modelgeometry::ModelGeometry::Vertex, location)));
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glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, vertexSize,
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reinterpret_cast<const GLvoid*>(offsetof(modelgeometry::ModelGeometry::Vertex, tex)));
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glVertexAttribPointer(2, 3, GL_FLOAT, GL_FALSE, vertexSize,
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reinterpret_cast<const GLvoid*>(offsetof(modelgeometry::ModelGeometry::Vertex, normal)));
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glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, _ibo);
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glBufferData(GL_ELEMENT_ARRAY_BUFFER, _geometryIndeces.size() * sizeof(int), &_geometryIndeces[0], GL_STATIC_DRAW);
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glBindVertexArray(0);
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return completeSuccess;
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}
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bool RenderableModelProjection::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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if (_texture)
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delete _texture;
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if (_textureProj)
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delete _textureProj;
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if (_textureOriginal)
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delete _textureOriginal;
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if (_textureWhiteSquare)
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delete _textureWhiteSquare;
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_geometry = nullptr;
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_texture = nullptr;
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_textureProj = nullptr;
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_textureOriginal = nullptr;
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_textureWhiteSquare = nullptr;
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glDeleteBuffers(1, &_vbo);
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return true;
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}
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void RenderableModelProjection::render(const RenderData& data) {
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if (!_programObject) return;
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if (!_textureProj) return;
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_programObject->activate();
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_frameCount++;
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_camScaling = data.camera.scaling();
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_up = data.camera.lookUpVector();
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if (_capture && _performProjection)
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project();
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attitudeParameters(_time);
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_imageTimes.clear();
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double time = openspace::Time::ref().currentTime();
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bool targetPositionCoverage = openspace::SpiceManager::ref().hasSpkCoverage(_target, time);
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if (!targetPositionCoverage) {
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int frame = _frameCount % 180;
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float fadingFactor = static_cast<float>(sin((frame * M_PI) / 180));
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_alpha = 0.5f + fadingFactor * 0.5f;
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}
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else
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_alpha = 1.0f;
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_programObject->setUniform("ProjectorMatrix", _projectorMatrix);
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_programObject->setUniform("boresight", _boresight);
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_programObject->setUniform("_performShading", _performShading);
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_programObject->setUniform("sun_pos", _sunPosition.vec3());
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_viewProjection = data.camera.viewProjectionMatrix();
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_programObject->setUniform("ViewProjection", _viewProjection);
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_programObject->setUniform("ModelTransform", _transform);
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setPscUniforms(_programObject, &data.camera, data.position);
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textureBind();
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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 RenderableModelProjection::update(const UpdateData& data) {
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if (_programIsDirty) {
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_programObject->rebuildFromFile();
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_fboProgramObject->rebuildFromFile();
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_programIsDirty = false;
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}
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_time = data.time;
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if (openspace::ImageSequencer2::ref().isReady() && _performProjection) {
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openspace::ImageSequencer2::ref().updateSequencer(_time);
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_capture = openspace::ImageSequencer2::ref().getImagePaths(_imageTimes, _projecteeID, _instrumentID);
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}
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// set spice-orientation in accordance to timestamp
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if (!_source.empty())
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openspace::SpiceManager::ref().getPositionTransformMatrix(_source, _destination, _time, _stateMatrix);
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double lt;
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openspace::SpiceManager::ref().getTargetPosition("SUN", _target, "GALACTIC", "NONE", _time, _sunPosition, lt);
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}
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void RenderableModelProjection::imageProjectGPU() {
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// keep handle to the current bound FBO
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GLint defaultFBO;
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glGetIntegerv(GL_FRAMEBUFFER_BINDING, &defaultFBO);
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GLint m_viewport[4];
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glGetIntegerv(GL_VIEWPORT, m_viewport);
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glBindFramebuffer(GL_FRAMEBUFFER, _fboID);
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// set blend eq
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glEnable(GL_BLEND);
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glBlendEquationSeparate(GL_FUNC_ADD, GL_FUNC_ADD);
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glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ZERO, GL_ZERO);
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glViewport(0, 0, static_cast<GLsizei>(_texture->width()), static_cast<GLsizei>(_texture->height()));
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_fboProgramObject->activate();
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ghoul::opengl::TextureUnit unitFboProject;
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unitFboProject.activate();
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_textureProj->bind();
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_fboProgramObject->setUniform("projectTexture", unitFboProject);
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ghoul::opengl::TextureUnit unitFboCurrent;
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unitFboCurrent.activate();
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_texture->bind();
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_fboProgramObject->setUniform("currentTexture", unitFboCurrent);
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_fboProgramObject->setUniform("ProjectorMatrix", _projectorMatrix);
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_fboProgramObject->setUniform("ModelTransform", _transform);
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_fboProgramObject->setUniform("_scaling", _camScaling);
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_fboProgramObject->setUniform("boresight", _boresight);
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glBindVertexArray(_vaoID);
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glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, _ibo);
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glDrawElements(GL_TRIANGLES, static_cast<GLsizei>(_geometryIndeces.size()), GL_UNSIGNED_INT, 0);
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glBindVertexArray(0);
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_fboProgramObject->deactivate();
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glDisable(GL_BLEND);
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//bind back to default
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glBindFramebuffer(GL_FRAMEBUFFER, defaultFBO);
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glViewport(m_viewport[0], m_viewport[1],
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m_viewport[2], m_viewport[3]);
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}
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void RenderableModelProjection::attitudeParameters(double time) {
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openspace::SpiceManager::ref().getPositionTransformMatrix(_source, _destination, time, _stateMatrix);
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openspace::SpiceManager::ref().getPositionTransformMatrix(_instrumentID, _destination, time, _instrumentMatrix);
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_transform = glm::mat4(1);
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glm::mat4 rotPropX = glm::rotate(_transform, static_cast<float>(_rotationX), glm::vec3(1, 0, 0));
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glm::mat4 rotPropY = glm::rotate(_transform, static_cast<float>(_rotationY), glm::vec3(0, 1, 0));
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glm::mat4 rotPropZ = glm::rotate(_transform, static_cast<float>(_rotationZ), glm::vec3(0, 0, 1));
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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 * rotPropX * rotPropY * rotPropZ;
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std::string shape, instrument;
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std::vector<glm::dvec3> bounds;
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glm::dvec3 boresight;
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bool found = openspace::SpiceManager::ref().getFieldOfView(_instrumentID, shape, instrument, boresight, bounds);
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if (!found)
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return;
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double lightTime;
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psc position; //observer target
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found = SpiceManager::ref().getTargetPosition(_projectorID, _projecteeID, _destination, _aberration, time, position, lightTime);
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position[3] += (3 + _camScaling[1]);
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glm::vec3 cpos = position.vec3();
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_projectorMatrix = computeProjectorMatrix(cpos, boresight, _up);
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}
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glm::mat4 RenderableModelProjection::computeProjectorMatrix(const glm::vec3 loc, glm::dvec3 aim, const glm::vec3 up) {
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//rotate boresight into correct alignment
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_boresight = _instrumentMatrix*aim;
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glm::vec3 uptmp(_instrumentMatrix*glm::dvec3(up));
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// create view matrix
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glm::vec3 e3 = glm::normalize(_boresight);
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glm::vec3 e1 = glm::normalize(glm::cross(uptmp, e3));
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glm::vec3 e2 = glm::normalize(glm::cross(e3, e1));
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glm::mat4 projViewMatrix = glm::mat4(e1.x, e2.x, e3.x, 0.f,
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e1.y, e2.y, e3.y, 0.f,
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e1.z, e2.z, e3.z, 0.f,
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-glm::dot(e1, loc), -glm::dot(e2, loc), -glm::dot(e3, loc), 1.f);
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// create perspective projection matrix
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glm::mat4 projProjectionMatrix = glm::perspective(_fovy, _aspectRatio, _nearPlane, _farPlane);
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// bias matrix
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glm::mat4 projNormalizationMatrix = glm::mat4(0.5f, 0, 0, 0,
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0, 0.5f, 0, 0,
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0, 0, 0.5f, 0,
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0.5f, 0.5f, 0.5f, 1);
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return projNormalizationMatrix*projProjectionMatrix*projViewMatrix;
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}
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|
|
|
|
|
void RenderableModelProjection::textureBind() {
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|
ghoul::opengl::TextureUnit unit[2];
|
|
unit[0].activate();
|
|
_texture->bind();
|
|
_programObject->setUniform("currentTexture", unit[0]);
|
|
unit[1].activate();
|
|
_textureWhiteSquare->bind();
|
|
_programObject->setUniform("projectedTexture", unit[1]);
|
|
}
|
|
|
|
void RenderableModelProjection::project() {
|
|
for (auto img : _imageTimes) {
|
|
std::thread t1(&RenderableModelProjection::attitudeParameters, this, img.startTime);
|
|
t1.join();
|
|
_projectionTexturePath = img.path;
|
|
imageProjectGPU(); //fbopass
|
|
}
|
|
_capture = false;
|
|
}
|
|
|
|
void RenderableModelProjection::loadTexture() {
|
|
delete _texture;
|
|
_texture = nullptr;
|
|
if (_colorTexturePath.value() != "") {
|
|
_texture = ghoul::io::TextureReader::ref().loadTexture(absPath(_colorTexturePath));
|
|
if (_texture) {
|
|
LDEBUG("Loaded texture from '" << absPath(_colorTexturePath) << "'");
|
|
_texture->uploadTexture();
|
|
_texture->setFilter(ghoul::opengl::Texture::FilterMode::Linear);
|
|
}
|
|
}
|
|
delete _textureOriginal;
|
|
_textureOriginal = nullptr;
|
|
if (_colorTexturePath.value() != "") {
|
|
_textureOriginal = ghoul::io::TextureReader::ref().loadTexture(absPath(_colorTexturePath));
|
|
if (_textureOriginal) {
|
|
LDEBUG("Loaded texture from '" << absPath(_colorTexturePath) << "'");
|
|
_textureOriginal->uploadTexture();
|
|
_textureOriginal->setFilter(ghoul::opengl::Texture::FilterMode::Linear);
|
|
}
|
|
}
|
|
delete _textureWhiteSquare;
|
|
_textureWhiteSquare = nullptr;
|
|
if (_defaultProjImage != "") {
|
|
_textureWhiteSquare = ghoul::io::TextureReader::ref().loadTexture(absPath(_defaultProjImage));
|
|
if (_textureWhiteSquare) {
|
|
_textureWhiteSquare->uploadTexture();
|
|
_textureWhiteSquare->setFilter(ghoul::opengl::Texture::FilterMode::Linear);
|
|
}
|
|
}
|
|
}
|
|
|
|
void RenderableModelProjection::loadProjectionTexture() {
|
|
delete _textureProj;
|
|
_textureProj = nullptr;
|
|
if (_projectionTexturePath.value() != "") {
|
|
_textureProj = ghoul::io::TextureReader::ref().loadTexture(absPath(_projectionTexturePath));
|
|
if (_textureProj) {
|
|
_textureProj->uploadTexture();
|
|
_textureProj->setFilter(ghoul::opengl::Texture::FilterMode::AnisotropicMipMap);
|
|
_textureProj->setWrapping(ghoul::opengl::Texture::WrappingMode::ClampToBorder);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
} // namespace openspace
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