Can you clarify this? I understood Core Image supports floating point
rendering on the graphics card but what you're saying is that Quartz
Composer only supports 8 bit textures so we can't use this
capabililty.
Core Image internally computes everything in floating-point, whatever
the precision of the inputs images.
However, when QC draws the final result of a CI filter chain either
to the screen (which is 8 bits anyway) or to a buffer for export
(e.g. NSImage), it is converted to 8 bits.
________________________________________________________
Pierre-Olivier Latour email@hidden
Quartz Composer Team Apple Computer, Inc.
