diguyOglGraphicsInstanceGroup.h

Go to the documentation of this file.

/****************************************************************************
 * Copyright (c) 2024 MAK Technologies, Inc.
 * All rights reserved.
 ****************************************************************************/

#pragma once

// needed for function prototypes
#include <GL/glew.h>
#include <GL/gl.h>

#include <diguyGraphicsInstanceGroup.h>

class diguyOglGraphicsInstanceGroup : public diguyGraphicsInstanceGroup
{
public:
   diguyOglGraphicsInstanceGroup(void* internal_data);

   virtual void build() override;
   virtual void unbuild() override;

   virtual int bind_instance_group_data(int base_start, int link_start, int count) override;
   virtual int bind_instance_buffer_data(int num_floats, const float* instance_data) override;

protected:
   void create_link_matrices_tbo(int num_floats);
   void destroy_link_matrices_tbo();

   static int s_tbo_size_in_floats;
   static GLuint s_link_matrices_buffer;
   static GLuint s_link_matrices_tbo;
};


diguyGraphicsInstanceGroup* diguyOglGraphicsInstanceGroup_create_func(void* internal_data);