R0J0hound
Sorry to bother you, but can you think of a way to have the canvas serve as a destination in effect. I've tried adding it myself but to no effect.
Also, I can't seem to figure out how to put a background texture in the example you've produced. Each time I do, the coloured lights just appear to wash away any detail.
Hope you can help. I've been working on this mini-project for the last couple of days, only to suddenly hit this potential roadblock.
If you'd like to see the capx I've been working on, I can pm it to you?