[PD] Re: YUV textures

chris clepper cclepper at artic.edu
Tue Dec 3 08:45:56 CET 2002

>AFAIK, YUV textures are only available using Direct3D under windows... I
>think Apple is the only OpenGL vendor to include general support for YUV
>textures.  Can anyone confirm/deny this?

that may indeed be the case at this point in time.

>Is it possible to do HW assisted YUV->RGB(A) conversion using texture
>transfer options and a colour matrix in OpenGL?

all the cards seem to have that feature listed in their specs, but i 
have no idea how to tap into that using a common api/lib other than 
opengl.  i attempted to write a yuv->pix object but didn't have much 
success.  not sure what sort of performance hit that will be doing 
the conversion in software.  it could wipe out any speed gains of yuv 




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