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#pragma once
#include <vector>
#include "../Utilities/UtilMacros.h"
#include "../Shaders/ShaderChannel.h"
#include "OpenGL.h"
#include "GPUDataBuffer.h"
#include "DefaultVertexLayout.h"
#include "CustomVertexLayout.h"
#include "Primitive.h"
// 实际使用过程中，通常是一个VBO和一个IBO一起，submesh对应的是IBO中的不同的段，而不是不同的IBO
class VertexBuffer
{
public:
enum VertexBufferType
{
VertexBufferType_Static, // device
VertexBufferType_Stream, // pinned (best performance)
VertexBufferType_Dynamic,// device
};
VertexBuffer(VertexBufferType type);
~VertexBuffer();
void Draw();
private:
VertexBufferType m_Type;
GPU::DataBuffer* m_VB;
GPU::DataBuffer* m_IB;
EPrimitive m_Primitive;
};
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