Apparently, Core Video does not support textures in those formats.
You could try passing a CGImageRef or a CIImage, but QC does not
really support images with more than 8 bits per component as they
will very likely be clamped to 8 bits internally.
What textures does it support?
ARGB32 I guess
I presume that once images are inside QC will support more than 8
bits?
As I said, that's unlikely, as images needs to be converted to
textures at the end of the day, and at this time, QC generates 8 bits
textures
When I read out the QC renderer buffer I can see that the gradient
renderer certainly has a higher precision, so it looks hopeful...
The gradient renderer uses OpenGL to generate the gradient and the
computations on the video card are usually in higher precision that 8
bits
________________________________________________________
Pierre-Olivier Latour email@hidden
Quartz Composer Team Apple Computer, Inc.
