I recently started working in FCP7. I'm trying to add a noise generator onto my clip, to create that grainy look. I add it on a second timeline, change opacity and then my clip looks like I want it to look. I render it, but once it finished rendering, I can't see the effect on the final clip. However if i change my aspect ratio in settings, I do see the effect after rendering, but I don't want to do that seeing then I'll have to redo my whole clip. Does anyone know why the noise isn't visible on my clip after rendering?