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kerrspace 上面那个网页最后还有一句:“Technically "direct rendering" only tells you whether your program is communicating directly with the graphics card driver. "indirect rendering" means you are communicating all 3D to the X server which then communicates with the graphics card. I think at some point it wasn't possible to have hardware acceleration without direct rendering, but now days indirect rendering can also be accelerated. By extension, it could also be possible to directly communicate with a driver that fakes hardware acceleration in the CPU, but i don't know of any instance of this. – M Conrad Jul 3 '17 at 18:04”
更加糊涂了,怎么看呢?