In an interior scene, I need to have an image projected on the wall. With an image with black background, the black background should naturally have the same color as the wall. Everything brighter in the image should be brighter on the wall, just like when using a projector.
I tried a standard decal, but then the black background is black on the wall. Expected, but not what I want.
By the way, I’m open to using other renderers than the default one in Rhino 6. I’m forever a rendering noob.