The alpha mask doesn't seem to be recognized in an image map shader. Or am I doing something wrong? I can't get an image with an underlying alpha to color a surface only within the white alpha limits. I had to use an extra white/black image as mask for the image map shader.
With a (transparent) png it didn't work as expected either, strange colors are rendered where there's 'nothing'.
Is this a bug in the image map shader, or is it something I didn't see?
