Video texture and alpha check before drawing ...

Cedric Gautier (gce++at++ina.fr)
Fri, 6 Jan 95 19:55:10 +0100

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I have one problem when mapping video as texture on geometry trying to get
my video texture being transparent when alpha is set to 0 ... It works well
with RGBA_4 standard textures enabling transparency but it seems that the
RGBA_4 video texture does not want to make itself transparent on 0 alpha !

I have tried both transparency and alphafunc methods ... alphafunc method
s ... So does the alpha test rendering works on video texture ? if so what
may I do wrong with video if the standard texture is running well ? What's
the difference beetween the two ? ... I am using Sirius board with analog
input format in RGB for video input ... and in fact my video input is just
a loop from video output to get a simple mask on a moving cube out from
RGBA ...

Any ideas are welcomed ! ...

Cedric

I.N.A R&D
email: gce++at++ina.fr

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