growing a glow
28-Oct-94 18:17:46
Sb: #131851-growing a glow
Fm: Don Landis 71673,3612
To: Gayle G de N, SAVANTES 73251,3042
I can't recall what it was exactly you were trying to do but the way to get a
glow to grow as in the title of the thread is to scale the "glow" object. This
would still necessitate using the glow IPAS on this object. If you absolutely
want to create glows around objects without the glow IPAS I recently figured a
way to do it here when creating a neon sign that would light up and blink on
and off as the sign was being turned on to sound effects. What I did was loft
a circle along a path for the neon sign glass tube and assigned it a neon
orange material that I created in the mat ed. Next I took the same path and
lofted a circle at twice the diameter as the first so it was a concentric tube
on the neon sign. You can then assign the same material only this time give it
some transparency with fall-off to the outside for the larger tube. I also
used an animated texture map on the glass tube so it would change from solid
neon orange to solid white glass. I was also working on an animated opacity
map to make the glass clear when the sign was turned off. Then the project was
cancelled. Those things happen sometimes. <G> Anyway the turned on neon sign
looked authentic and had a nice uniform glow that the glow IPAS was incapable
of creating. To be honest, I have found the IPAS glow very hard to control and
have resorted to either the lens flare or objects for real controlable glows.