You need to give more context to the question. Are you just trying to add color to an image and store it in a file or are you trying to display it on the screen and change its color by changing palette entries? If you want to use it as a texture map you can use GL_EXT_paletted_texture that would let you manipulate the palette and then paint with the texture into an RGB screeen. Or, if you set the screen depth to 8 bits you'll be stuck with an 8 bit paletted display and you can't use anything else. Bob Pendleton On Fri, Oct 2, 2009 at 1:00 PM, Kevin Jenkins <gameprogrammer@xxxxxxxxxx> wrote: > I have a greyscale texture that I want to colorize based on a palette, where > I define each of the 256 greyscale values to a color. How would I do this in > OpenGL? > > --------------------- > To unsubscribe go to http://gameprogrammer.com/mailinglist.html > > > -- +----------------------------------------------------------- + Bob Pendleton: writer and programmer + email: Bob@xxxxxxxxxxxxx + web: www.TheGrumpyProgrammer.com --------------------- To unsubscribe go to http://gameprogrammer.com/mailinglist.html