View Full Version : Transparency problem
igu4n4 03-04-2004, 02:28 AM Hello all,.. having an issue that I'm sure is overly obvious, but for the moment the solution eludes me. I have a transparency map for a fish fin for a current job, and the Alpha channel of the rendering isn't showing it. The Alpha channel is showing just the fully opaque model completely unaffected by the transparency map.
Shader options, Alpha Channel are set to Surface Opacity, and of course RayTrace transparency is turned on.
I'm not new to Lightwave by any stretch, so I can't think of anything I've done indirectly to cause the transparency map to not effect the alpha channel.
Any thoughts?
Thanks.
Steve.
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Patricio
03-05-2004, 05:12 PM
I would use transluency instead of transparency.
igu4n4
03-05-2004, 05:54 PM
Yes, translucency is a key factor as well,.. however this was purely for the edging. Actually since I posted this (4 days ago.. grr new user status)... the solution became apparent. I had raytraced transparency on for bubbles in the scene, and this setting stops transparency maps from interacting with the alpha channel in the renders.
Not the most satisfactory solution, but turning raytraced transparency off in render options fixes the alpha channel problems.
Steve.
PixelInfected
03-05-2004, 06:14 PM
Originally posted by igu4n4
Hello all,.. having an issue that I'm sure is overly obvious, but for the moment the solution eludes me. I have a transparency map for a fish fin for a current job, and the Alpha channel of the rendering isn't showing it. The Alpha channel is showing just the fully opaque model completely unaffected by the transparency map.
Shader options, Alpha Channel are set to Surface Opacity, and of course RayTrace transparency is turned on.
I'm not new to Lightwave by any stretch, so I can't think of anything I've done indirectly to cause the transparency map to not effect the alpha channel.
Any thoughts?
Thanks.
Steve.
set up off ray trace transparency and you see it in alpha, an old and strange working of lw.
if you work with postpro, you can export a transparency layer to compose correctly transparency...
have a nice day.
CourtJester
03-08-2004, 06:54 AM
perhaps try turning off ray trace transparency, turn on ray trace refraction, and then set the surface index of refraction for the fish to some value other than 1, e.g. 1.0001. That might force the rendering process through different routines that do not contain this bug. Ray trace transparency has other issues that I know of, that do not occur with raytrace refraction.
I'm not in a position to test this right now, so check first.
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