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https://github.com/OpenSpace/OpenSpace.git
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700f590a2a
Added functionality: - New class renderablesphericalgrid is repurposed code from powerscaledsphere class. Due to z-buffer issues used as reference grid to confirm planetary orbits are correct. This has been a major problem as prior we had no visual reference. Now we have a Galactic-, Celestial- and Ecliptic-coordinate grid. To this also added separate shader: grid_vs.glsl / grid_fs.glsl These grids have a static-rotational matrix derived from partiview (thanks to Brian) since spice req. to-from frame to compute rotational matrix. Time dependency: - Added struct RuntimeData - which for now only contains openspace time and is passed to all renderables - All renderables accept runtimeData, keep private reference and use for computation of rotational matrix - This obviously carries corresponding changes to Scenegraph and ScenegraphNode. Spicemanager: - Added function that more easily provides access to rotational matrix used in spice (used in renderableplanet for computing planetary objects spin around axis) Ephemeris-classes: - Now compute ephemeris from spice based on timeepoch in runtimedata TODO: once z-buffer fixed - set ephemeris correctly as meters (not kilometers) Renderengine: - Advances time with the advanceTime method in RuntimeData struct ISSUES: - Our Y axis NOT same as SPICE or star-catalogue, all renderables rotated now 90deg, needs redefinition, lots of debugging and major headaches before this conclusion. - Depth buffer needs to be fixed in order to properly place planets. - Spice kernels have finite time-range, when time stops - simulation ends - ugly fix: reset time to zero. Possible fix: kernels de431 (part 1-2) cover huge timespan and most likely have functions to extrapolate time, drawback is that they are 1,7 gb each. TODO: - Compute and draw dynamic ephemeries for each renderable. Either do full year sweep then update for each point or create a tail of linesegments for each planet. Dont know yet how to do this, would like spicephemeris to be sub-class of Renderable (have own render() method) - good/bad?
120 lines
4.5 KiB
C++
120 lines
4.5 KiB
C++
/*****************************************************************************************
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* *
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* OpenSpace *
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* *
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* Copyright (c) 2014 *
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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 __RENDERABLEVOLUMEEXPERT_H__
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#define __RENDERABLEVOLUMEEXPERT_H__
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// open space includes
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#include <openspace/rendering/renderablevolume.h>
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#include <openspace/rendering/volumeraycasterbox.h>
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// ghoul includes
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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/framebufferobject.h>
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#include <ghoul/opencl/clcontext.h>
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#include <ghoul/opencl/clcommandqueue.h>
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#include <ghoul/opencl/clprogram.h>
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#include <ghoul/opencl/clkernel.h>
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#include <ghoul/filesystem/file.h>
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#ifdef __APPLE__
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#include <memory>
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#else
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#include <mutex>
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#endif
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namespace ghoul {
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namespace opencl {
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class CLWorkSize;
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}
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}
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namespace openspace {
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class RenderableVolumeExpert: public RenderableVolume {
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public:
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// constructors & destructor
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RenderableVolumeExpert(const ghoul::Dictionary& dictionary);
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~RenderableVolumeExpert();
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bool initialize();
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bool deinitialize();
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virtual void render(const Camera *camera, const psc& thisPosition, RuntimeData* runtimeData);
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virtual void update();
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private:
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// private methods
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void safeKernelCompilation();
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void safeUpdateTexture(const ghoul::filesystem::File& file);
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// Volumes
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std::vector<std::string> _volumePaths;
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std::vector<ghoul::Dictionary> _volumeHints;
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// Textures
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ghoul::opengl::Texture* _output;
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std::vector<ghoul::opengl::Texture*> _volumes;
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std::vector<ghoul::opengl::Texture*> _transferFunctions;
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std::vector<ghoul::filesystem::File*> _transferFunctionsFiles;
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// opencl texture memory pointers
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cl_mem _clBackTexture;
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cl_mem _clFrontTexture;
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cl_mem _clOutput;
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std::vector<cl_mem> _clVolumes;
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std::vector<cl_mem> _clTransferFunctions;
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// opencl program
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ghoul::opencl::CLContext _context;
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ghoul::opencl::CLCommandQueue _commands;
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ghoul::opencl::CLProgram _program;
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ghoul::opencl::CLKernel _kernel;
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ghoul::opencl::CLWorkSize* _ws;
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ghoul::filesystem::File* _kernelSourceFile;
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std::vector<std::pair<ghoul::opencl::CLProgram::Option, bool> > _kernelOptions;
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std::vector<std::string> _kernelIncludes;
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std::vector<std::pair<std::string,std::string> > _kernelDefinitions;
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bool _programUpdateOnSave;
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// mutexes to prevent inconsistencies
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std::mutex* _kernelLock;
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std::mutex* _textureLock;
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ghoul::opengl::ProgramObject *_quadProgram;
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GLuint _screenQuad;
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VolumeRaycasterBox* _colorBoxRenderer;
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glm::vec3 _boxScaling;
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RuntimeData* _runtimeData;
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};
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} // namespace openspace
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#endif |