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OpenSpace/modules/multiresvolume/rendering/multiresvolumeraycaster.h
2025-12-16 13:40:19 +01:00

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/*****************************************************************************************
* *
* OpenSpace *
* *
* Copyright (c) 2014-2025 *
* *
* Permission is hereby granted, free of charge, to any person obtaining a copy of this *
* software and associated documentation files (the "Software"), to deal in the Software *
* without restriction, including without limitation the rights to use, copy, modify, *
* merge, publish, distribute, sublicense, and/or sell copies of the Software, and to *
* permit persons to whom the Software is furnished to do so, subject to the following *
* conditions: *
* *
* The above copyright notice and this permission notice shall be included in all copies *
* or substantial portions of the Software. *
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, *
* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A *
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****************************************************************************************/
#ifndef __OPENSPACE_MODULE_MULTIRESVOLUME___MULTIRESVOLUMERAYCASTER___H__
#define __OPENSPACE_MODULE_MULTIRESVOLUME___MULTIRESVOLUMERAYCASTER___H__
#include <openspace/rendering/volumeraycaster.h>
#include <openspace/util/boxgeometry.h>
#include <ghoul/glm.h>
#include <ghoul/opengl/bufferbinding.h>
#include <ghoul/opengl/textureunit.h>
#include <memory>
namespace openspace {
class AtlasManager;
class TransferFunction;
class TSP;
class MultiresVolumeRaycaster : public VolumeRaycaster {
public:
MultiresVolumeRaycaster(std::shared_ptr<TSP> tsp,
std::shared_ptr<AtlasManager> atlasManager,
std::shared_ptr<TransferFunction> transferFunction);
virtual ~MultiresVolumeRaycaster();
void initialize();
void deinitialize();
void renderEntryPoints(const RenderData& data,
ghoul::opengl::ProgramObject& program) override;
void renderExitPoints(const RenderData& data,
ghoul::opengl::ProgramObject& program) override;
void preRaycast(const RaycastData& data,
ghoul::opengl::ProgramObject& program) override;
void postRaycast(const RaycastData& data,
ghoul::opengl::ProgramObject& program) override;
bool isCameraInside(const RenderData& data, glm::vec3& localPosition) override;
std::filesystem::path boundsVertexShaderPath() const override;
std::filesystem::path boundsFragmentShaderPath() const override;
std::filesystem::path raycasterPath() const override;
std::filesystem::path helperPath() const override;
void setModelTransform(glm::mat4 transform);
void setStepSizeCoefficient(float coefficient);
private:
BoxGeometry _boundingBox;
glm::mat4 _modelTransform = glm::mat4(1.f);
float _stepSizeCoefficient = 0.f;
std::shared_ptr<TSP> _tsp;
std::shared_ptr<AtlasManager> _atlasManager;
std::shared_ptr<TransferFunction> _transferFunction;
std::unique_ptr<ghoul::opengl::TextureUnit> _tfUnit;
std::unique_ptr<ghoul::opengl::TextureUnit> _atlasUnit;
std::unique_ptr<
ghoul::opengl::BufferBinding<ghoul::opengl::bufferbinding::Buffer::ShaderStorage>
> _atlasMapBinding;
};
} // namespace openspace
#endif // __OPENSPACE_MODULE_MULTIRESVOLUME___MULTIRESVOLUMERAYCASTER___H__