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how is this demo effect called?

Posted: Tue Sep 26, 2006 6:15 pm
by twh
Hello *,

look at the picture. It's a moving map and the light beams are shining through the edges and "lakes" (wholes). What is the name of this effect? Anybody know a web site where this effect is technically described, potentially with source code?

\twh

Re: how is this demo effect called?

Posted: Wed Sep 27, 2006 6:30 am
by twh
this picture is from an atari 8bit demo. It's showing pretty much the same beam light effect. Here however the light source is not behind a wall but inside a sphere.

how is this technique realized?

\twh

Re: how is this demo effect called?

Posted: Thu Aug 21, 2008 12:26 pm
by StanZ
Hi, hey that's kind of old question ;) I'll try to answer as I'm not really a specialist.
It's called "GLOW", to me a "new school" effect. It can be done with several methods, one example:
copy the whole screen then past it with a % of transparency and of course it must be stretched (with a gradient too)

edit, note that in fact it's not always the whole screen (works if the object is centered) because it's getting to be called "radial blur" too ;P