/// <summary>
/// 获取一个可渲染此VBO的渲染器。执行此方法后，此对象中的非托管内存即可释放掉，不再占用CPU内存。
/// Uploads this buffer to GPU memory and gets its pointer.
/// It's totally OK to free memory of unmanaged array stored in this buffer object after this method invoked.
/// </summary>
/// <returns></returns>
public BufferPtr GetBufferPtr()
{
if (bufferPtr == null)
{
bufferPtr = Upload2GPU();
}
return(bufferPtr);
}
/// <summary>
///
/// </summary>
/// <param name="internalformat"></param>
/// <param name="bufferPtr"></param>
/// <param name="autoDispose">Dispose <paramref name="bufferPtr"/> when this filler is disposed.</param>
public TexBufferImageFiller(uint internalformat, BufferPtr bufferPtr, bool autoDispose)
{
this.internalformat = internalformat;
this.bufferPtr = bufferPtr;
this.autoDispose = autoDispose;
}