I want to create a way of painting with framedifferences and created this simple patch. And changed the @erase_color 1. 1. 1. 0.2 on the render object alphachannel to 0.2 and was thinking that the white part would stay visual but I was wrong.
I want to do painting with my bodymovement. how can I get the withe color from the framedifferences to stay?
heres the patch: