"Thomas de Groot" <t.d### [at] internlnet> wrote:

>
> I think I am missing something. What is different between image #3 and #4?
> Both have no-alpha channel, and a black background? Or is there something
> else? I admit that I did not entirely understand your explanation there...
>
> Thomas

No problem; sorry if I didn't make that clear.  Image #3 is just the dino
*shape* in white, surrounded by black; no greys or colors. (It looks the
same as the original image's alpha channel, but it's actually a separate
image.) It's used to create the solid black "plug" of absorbing media, in
the shape of the dino. Then image #4 is used for all three emitting medias;
this image contains the actual colors of the dino, to create three
primary-colored medias which are simply added to (or combined with) the
black plug.

Ken

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