Anita Kishore (kishore++at++triavest.com)
Wed, 16 Jul 1997 17:26:52 -0700
I am trying to map an image of a neon sign (created in Photoshop)
with alpha onto a geometry. The image has the sign in the middle with neon
like light emanating from it which slowly merges with the blackness around
the sign. This image with its geometry is in an Inventor file which gets
loaded into my application through pfiv (BTW : the version of pfiv that I have
didn't have transparency enabled, so I added the lines :
if ( numComponents == 4 )
{
cbd->dummyGState->setMode(PFSTATE_TRANSPARENCY, PFTR_ON);
}
in the routine 'getTexture').
Anyway, the problem is that when this texture gets loaded, the neon light
around the sign appears completely banded with each band having a single
level of colour. The change in colour from the neon light colour to black
(completely transparent) is not smooth at all. What else should I set to make
it smooth?
I have already tried recreating a fresh image of very large size and mapping
that, but to no avail.
I am using OpenGL, RE2, 5.3, pf 2.0.1. I do not have glxinfo to find out the
visual that pf window might actually be using. Doesn't RE2 come with
glxinfo? Is it possible to install it from somewhere?
Thanks for any help.
-anita
--
Anita Kishore
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