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我的设置:
我试图弄清楚 GPUDirect 的目的是什么(在我的特定情况下),如果我可以使用glTexSubImage2D()任何系统内存填充 GPU 纹理并glGetTextureImageEXT()从 GPU 获取纹理数据来实现相同数量的复制和相同的性能返回到系统内存的任何部分。
glTexSubImage2D()
glGetTextureImageEXT()