On Mar 8, 2006, at 12:36 AM, chris clepper wrote:
Do you want to do something like add more red to an image? pix_gain will multiply each channel (R G B or Y U V) by a coefficient and pix_offset will add to the channel. You can also try the colorRGB object to modulate the color value in hardware, but the coefficients are limited to 0..1.
james tittle a écrit :
...the benefit of the [env $1< is that all processing takes place on the gpu (ie. no extra cpu cost) ;-)
Thank you guys for these advices. It seems like pix_levels is all right too. Is this as expansive on the CPU as pix_offset ? Anyways, I can't use pix_offset because the values aren't clipped. I think pix_gain is the way to go before this CVS goodie make its way to the pd-extended. :-)