Quote - Ask and you shall receive...

Callad, I played around with your light sets with this render.  The projector worked just fine casting the lines across the the wall and Velma's face.

Just an observation but aren't these the same as Reality Gels?

Jinkies!  The voice print matches!

(Can you say that with Velma's voice?)

Wonderful image UHF!

As to your question: No, the Gels are glass planes so they can emit color, the projectors use the opacity channel of a normal plane, thus they can only make black shadows.

I am working on a compact Gel Projector with preview, but the results aren't good enough for publishing yet. :)