how write a color to a texel when i have its UV coordinates ?

[airseb]

Hi,
in a fragment shader, i have the fragment's color and i want to write this color to another texel which i have the coordinates.
Do you know how i can do ?

PS : please tell me if i'm not clear.

[Peter_dup1]

My understanding of the GLSL specification is that you cannot control the fragment position from within the fragment shader, only the color and depth.

Peter

[airseb]

ok thank you.