I am trying to implement somekind of color correction.
I already implemented 1D LUT color correction, which is really easy to code and palette is easy to make.
Now, I would like to use 3D LUT, so i am able to control more color tranformations.
It's based on this http://udn.epicgames.com/Three/ColorGrading.html
I managed to use their standard palette, but problem is, i can't use hardware filtering as pixel is affected by another 16x16 table on left ( and right side ).
It's should be easy to do it with 3D texture, but how can i generate such a texture ? For me, easiest way is just use 2D texture like on the website i sent.
Do you have any ideas ? some tricks ?
Thank you very much.