what does the flag "D3DCREATE_SOFTWARE_VERTEXPROCESSING" mean?
What it tells in the official document is quite limited, just the following line.
Specifies software vertex processing.
So what does it mean by software vertex processing?
Does it mean that all of the vertex shader will be processed by CPU? I've totally no idea of it, however i guess it shouldn't be the case.
Or it will be very slow.
Please give me some pointers on it.