Image subtraction


I have to create an image subtraction, but i don’t know what can I use ? I’ve searched on google and your website, but nothing’s helping me.

If a patch doesn’t exist, maybe could you tell me which box I can use to create it.

Thks a lot

hey guest,
what do you mean with box?

For me, the different elements you can put on a diagram and link together are boxes, like Group, Quad …

Am i clearer ? :)

download the shader Blend.fx from the Shader Gallery

thanks tonfilm, i’ll try to use it !

hi guest,

boxes, like Group, Quad …

thats what we call nodes

oh, next time i’ll don’t forget it ! Thanks ;)