MRRenderPointsObject.h

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#pragma once
 
#include "MRMesh/MRIRenderObject.h"
#include "MRRenderGLHelpers.h"
#include "MRRenderHelpers.h"
#include "MRGLStaticHolder.h"
 
namespace MR
{
class RenderPointsObject : public virtual IRenderObject
{
public:
    RenderPointsObject( const VisualObject& visObj );
    ~RenderPointsObject();
 
    virtual bool render( const ModelRenderParams& params ) override;
    virtual void renderPicker( const ModelBaseRenderParams& params, unsigned geomId ) override;
    virtual size_t heapBytes() const override;
    virtual size_t glBytes() const override;
    virtual void forceBindAll() override;
private:
    const ObjectPointsHolder* objPoints_;
 
    int vertPosSize_{ 0 };
    int vertNormalsSize_{ 0 };
    int vertColorsSize_{ 0 };
    int validIndicesSize_{ 0 };
    Vector2i vertSelectionTextureSize_;
 
    int cachedRenderDiscretization_{ 1 };
 
    RenderBufferRef<Vector3f> loadVertPosBuffer_();
    RenderBufferRef<Vector3f> loadVertNormalsBuffer_();
    RenderBufferRef<Color> loadVertColorsBuffer_();
    RenderBufferRef<VertId> loadValidIndicesBuffer_();
    RenderBufferRef<unsigned> loadVertSelectionTextureBuffer_();
 
    typedef unsigned int GLuint;
    GLuint pointsArrayObjId_{ 0 };
    GLuint pointsPickerArrayObjId_{ 0 };
 
    GlBuffer vertPosBuffer_;
    GlBuffer vertNormalsBuffer_;
    GlBuffer vertColorsBuffer_;
    GlBuffer validIndicesBuffer_;
 
    GlTexture2 vertSelectionTex_;
 
    int maxTexSize_{ 0 };
 
    void bindPoints_( GLStaticHolder::ShaderType shaderType );
    void bindPointsPicker_();
 
    // Create a new set of OpenGL buffer objects
    void initBuffers_();
 
    // Release the OpenGL buffer objects
    void freeBuffers_();
 
    void update_();
 
    bool hasNormalsBackup_{ false };
 
    // Marks dirty buffers that need to be uploaded to OpenGL
    uint32_t dirty_;
};
 
}