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OpenSpace/modules/base/rendering/pointcloud/renderablepolygoncloud.h
2025-02-22 15:28:14 +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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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF *
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****************************************************************************************/
#ifndef __OPENSPACE_MODULE_BASE___RENDERABLEPOLYGONCLOUD___H__
#define __OPENSPACE_MODULE_BASE___RENDERABLEPOLYGONCLOUD___H__
#include <modules/base/rendering/pointcloud/renderablepointcloud.h>
#include <ghoul/opengl/ghoul_gl.h>
namespace ghoul::opengl { class Texture; }
namespace openspace {
namespace documentation { struct Documentation; }
/**
* A billboarded point cloud, but with dynamically created uniform polygon shapes instead
* of a custom texture. Overwrites the sprite set in parent class, RenderablePointCloud
*/
class RenderablePolygonCloud : public RenderablePointCloud {
public:
explicit RenderablePolygonCloud(const ghoul::Dictionary& dictionary);
~RenderablePolygonCloud() override = default;
void deinitializeGL() override;
static documentation::Documentation Documentation();
private:
void initializeCustomTexture() override;
void renderToTexture(GLuint textureToRenderTo, GLuint textureWidth,
GLuint textureHeight);
void renderPolygonGeometry(GLuint vao) const;
int _nPolygonSides = 3;
GLuint _pTexture = 0;
GLuint _polygonVao = 0;
GLuint _polygonVbo = 0;
bool _textureIsInitialized = false;
};
} // namespace openspace
#endif // __OPENSPACE_MODULE_BASE___RENDERABLEPOLYGONCLOUD___H__