mirror of
https://github.com/OpenSpace/OpenSpace.git
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259 lines
9.4 KiB
C++
259 lines
9.4 KiB
C++
/*****************************************************************************************
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* *
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* OpenSpace *
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* *
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* Copyright (c) 2014-2019 *
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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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#ifndef __OPENSPACE_CORE___FRAMEBUFFERRENDERER___H__
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#define __OPENSPACE_CORE___FRAMEBUFFERRENDERER___H__
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#include <openspace/rendering/renderer.h>
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#include <openspace/rendering/renderengine.h>
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#include <openspace/rendering/raycasterlistener.h>
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#include <openspace/rendering/deferredcasterlistener.h>
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#include <ghoul/glm.h>
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#include <ghoul/misc/dictionary.h>
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#include <ghoul/opengl/ghoul_gl.h>
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#include <ghoul/opengl/uniformcache.h>
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#include <map>
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#include <string>
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#include <vector>
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namespace ghoul { class Dictionary; }
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namespace ghoul::filesystem { class File; }
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namespace ghoul::opengl {
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class ProgramObject;
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class Texture;
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} // namespace ghoul::opengl
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namespace openspace {
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class Camera;
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struct DeferredcastData;
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struct DeferredcasterTask;
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struct RaycastData;
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struct RaycasterTask;
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class Scene;
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struct UpdateStructures;
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class FramebufferRenderer : public Renderer, public RaycasterListener,
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public DeferredcasterListener
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{
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private:
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inline static const GLenum ColorAttachment0Array[1] = {
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GL_COLOR_ATTACHMENT0
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};
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inline static const GLenum ColorAttachment01Array[2] = {
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GL_COLOR_ATTACHMENT0,
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GL_COLOR_ATTACHMENT1
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};
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inline static const GLenum ColorAttachment012Array[3] = {
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GL_COLOR_ATTACHMENT0,
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GL_COLOR_ATTACHMENT1,
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GL_COLOR_ATTACHMENT2
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};
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inline static const GLenum ColorAttachment0123Array[4] = {
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GL_COLOR_ATTACHMENT0,
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GL_COLOR_ATTACHMENT1,
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GL_COLOR_ATTACHMENT2,
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GL_COLOR_ATTACHMENT3
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};
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public:
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typedef std::map<
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VolumeRaycaster*,
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std::unique_ptr<ghoul::opengl::ProgramObject>
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> RaycasterProgObjMap;
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typedef std::map<
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Deferredcaster*,
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std::unique_ptr<ghoul::opengl::ProgramObject>
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> DeferredcasterProgObjMap;
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public:
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virtual ~FramebufferRenderer() = default;
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void initialize() override;
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void deinitialize() override;
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void updateResolution();
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void updateRaycastData();
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void updateDeferredcastData();
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void updateHDRAndFiltering();
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void updateAveLum();
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void updateBloomConfig();
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void updateHistogramConfig();
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void updateTMOViaMipMappingConfig();
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void updateMSAASamplingPattern();
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void setResolution(glm::ivec2 res) override;
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void setNAaSamples(int nAaSamples) override;
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void setHDRExposure(float hdrExposure) override;
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void setGamma(float gamma) override;
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void setMaxWhite(float maxWhite) override;
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void setToneMapOperator(int tmOp) override;
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void setBloomThreMin(float minV) override;
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void setBloomThreMax(float maxV) override;
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void setBloomOrigFactor(float origFactor) override;
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void setBloomNewFactor(float newFactor) override;
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void setKey(float key) override;
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void setYwhite(float white) override;
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void setTmoSaturation(float sat) override;
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void setHue(float hue) override;
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void setValue(float value) override;
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void setSaturation(float sat) override;
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void setLightness(float lightness) override;
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void setColorSpace(unsigned int colorspace) override;
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void enableBloom(bool enable) override;
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void enableHistogram(bool enable) override;
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int nAaSamples() const override;
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const std::vector<double>& mSSAPattern() const override;
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void update() override;
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void performRaycasterTasks(const std::vector<RaycasterTask>& tasks);
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void performDeferredTasks(const std::vector<DeferredcasterTask>& tasks,
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float blackoutFactor);
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void render(Scene* scene, Camera* camera, float blackoutFactor) override;
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/**
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* Update render data
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* Responsible for calling renderEngine::setRenderData
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*/
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virtual void updateRendererData() override;
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virtual void raycastersChanged(VolumeRaycaster& raycaster,
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RaycasterListener::IsAttached attached) override;
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virtual void deferredcastersChanged(Deferredcaster& deferredcaster,
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DeferredcasterListener::IsAttached isAttached) override;
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private:
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float computeBufferAveLuminance();
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float computeBufferAveLuminanceGPU();
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void applyBloomFilter();
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void computeImageHistogram();
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void computeMipMappingFromHDRBuffer(GLuint oglImageBuffer);
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private:
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std::map<VolumeRaycaster*, RaycastData> _raycastData;
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RaycasterProgObjMap _exitPrograms;
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RaycasterProgObjMap _raycastPrograms;
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RaycasterProgObjMap _insideRaycastPrograms;
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std::map<Deferredcaster*, DeferredcastData> _deferredcastData;
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DeferredcasterProgObjMap _deferredcastPrograms;
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std::unique_ptr<ghoul::opengl::ProgramObject> _hdrFilteringProgram;
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std::unique_ptr<ghoul::opengl::ProgramObject> _aveLumProgram;
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std::unique_ptr<ghoul::opengl::ProgramObject> _bloomProgram;
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std::unique_ptr<ghoul::opengl::ProgramObject> _bloomResolveProgram;
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std::unique_ptr<ghoul::opengl::ProgramObject> _histoProgram;
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std::unique_ptr<ghoul::opengl::ProgramObject> _histoApplyProgram;
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std::unique_ptr<ghoul::opengl::ProgramObject> _tmoProgram;
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std::unique_ptr<ghoul::opengl::ProgramObject> _resolveProgram;
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UniformCache(mainColorTexture, blackoutFactor, nAaSamples) _uniformCache;
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UniformCache(deferredResultsTexture, blackoutFactor, hdrExposure, gamma,
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toneMapOperator, aveLum, maxWhite, Hue, Saturation, Value,
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Lightness, colorSpace) _hdrUniformCache;
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UniformCache(renderedImage, bloomImage, bloomOrigFactor, bloomNewFactor)
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_bloomUniformCache;
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UniformCache(renderedImage, maxWhite, imageWidth, imageHeight) _histoUniformCache;
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UniformCache(hdrSampler, key, Ywhite, sat) _tmoUniformCache;
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GLuint _screenQuad;
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GLuint _vertexPositionBuffer;
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GLuint _mainColorTexture;
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GLuint _mainFilterTexture;
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GLuint _mainPositionTexture;
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GLuint _mainNormalTexture;
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GLuint _mainDepthTexture;
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GLuint _exitColorTexture;
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GLuint _mainFramebuffer;
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GLuint _exitDepthTexture;
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GLuint _exitFramebuffer;
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GLuint _hdrFilteringFramebuffer;
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GLuint _hdrFilteringTexture;
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GLuint _histoFramebuffer;
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GLuint _histoTexture;
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GLuint _histoVao;
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GLuint _histoVbo;
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GLuint _bloomVAO = 0u;
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GLuint _bloomFilterFBO[3];
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GLuint _bloomTexture[3];
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GLuint _computeAveLumFBO;
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GLuint _computeAveLumTexture;
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// New TMO via mipmapping
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GLuint _tmoTexture;
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GLuint _tmoFramebuffer;
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GLuint _tmoHdrSampler;
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bool _dirtyDeferredcastData;
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bool _dirtyRaycastData;
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bool _dirtyResolution;
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bool _dirtyMsaaSamplingPattern;
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glm::ivec2 _resolution = glm::ivec2(0);
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int _nAaSamples;
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float _hdrExposure = 1.68f;
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float _gamma = 0.86f;
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float _maxWhite = 1.0f;
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bool _bloomEnabled = false;
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float _bloomThresholdMin = 0.0;
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float _bloomThresholdMax = 1.0;
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float _bloomOrigFactor = 1.0;
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float _bloomNewFactor = 1.0;
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int _toneMapOperator = 8; // JCC TODO: temporarilly set to 8 because setProperty seems not to be working for OptionProperty
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bool _histogramEnabled = false;
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int _numberOfBins = 1024; // JCC TODO: Add a parameter control for this.
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float _tmoKey = 0.18f;
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float _tmoYwhite = 1e6f;
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float _tmoSaturation = 1.0f;
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float _hue = 1.f;
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float _saturation = 1.45f;
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float _value = 1.f;
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float _lightness = 1.1f;
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unsigned int _colorSpace = 1;
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std::vector<double> _mSAAPattern;
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std::vector<float> _histoPoints;
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ghoul::Dictionary _rendererData;
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// Capture Default OpenSpace GL State
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RenderEngine::GLDefaultState _osDefaultGLState;
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};
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} // namespace openspace
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#endif // __OPENSPACE_CORE___FRAMEBUFFERRENDERER___H__
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