cliptextures with alpha?

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Stephen Maher (maher++at++holodeck.gsfc.nasa.gov)
Tue, 16 Jun 1998 12:28:09 -0400 (EDT)

Hi,

Is alpha supported with clip textures?

I created a clip texture with alpha and I'm not seeing good results in
perfly 2.2 (i.e., no alpha). I'm using mgmosaic to generate the clip
texture (sgi8888, or raw8 format) and specifying alpha=0 for the
region mgmosaic pads to create a square texture.

I haven't verified the alpha values in the raw8 files, but I have
verified mgmosaic generates correct alpha in rgba ("RGBA" in mgmosaic)
files. (That format isn't read by pf 2.2).

Do I have to pfEnable(blending ..) somewhere?

Thanks,
Steve

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http://holodeck.gsfc.nasa.gov/vr/vr.html
NASA Goddard Space Flight Center
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