1 Apr
2011
1 Apr
'11
2:20 p.m.
For good results even more work may be needed than it seems. As it stands, filter primitives operate on ordinary 8-bits-per-channel RGBA images. Converting such image from sRGB to linear, filtering and converting back to sRGB will lose quite a bit of colour information. This could result in things like banding. The fix would be to use higher colour depth for the intermediate images (there are other reasons to do this, too).
Allowing higher colour depth to filter would be definitely a must !
ivan