Texture crop from quad position

I made this patch to set up a led screen with modules on diferent places( not all toguether making 1 screen) , i need to align them to make like a big screen with modules missing, so i need to crop a texture and i use a simple quad to know what part i was cropping.

i guess that it might be useful for others things too.

texture crop from quad position / size (5.2 kB)

yes handy thx ¡¡