Re: transparency & specularity

[Dair G. <da...@re...>]

James W. Walker wrote:

>I think you're right.  Apparently Quesa doesn't really have any =20
>provision for specular highlights on transparent material.  I found a =20
>hint about how to do it: =20
><http://www.opengl.org/resources/faq/technical/=20
>transparency.htm#blen0030>

Yes, this is the best you can do with a GL renderer I think: just been
an oversight that we didn't keep track of that state before (and I think
the times it has looked "working" were purely down to stale state being
in effect, as Frank said).


>You're right.  In the code I just checked in, the extra specular=20
>rendering is only done on triangles that were submitted with Phong=20
>rendering (and fill style =3D=3D filled.)

I've amended this slightly, so that we keep a separate flag indicating
if we ever see a triangle with the flag set (and so only do the second
pass if something was flagged as needing it).


-dair
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