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layz0rs!

category: gfx [glöplog]
 
Hi all. Im trying to get a laser effect similar to this one here:

http://vimeo.com/106478553

Problem is, I'm not sure what the lighting solution / blurring is here? Im guessing some sort of volumetric light and an emissive material on the laser but beyond that I'm a bit stuck. I could cheat with a blur filter on just the laser and then alpha blend that over the top Im guessing as a cheap way to get that effect but I'm quite liking the specular red highlights on the surface. Anyone have any ideas or places I can go and look at please? Cheers!
added on the 2014-12-04 13:58:49 by oni_ oni_
I somehow misread lazy0rs and thought this was a thread calling us all lazy for not ressurecting the scene :)
added on the 2014-12-04 14:38:42 by Optimus Optimus
Hehehe, I wasn't aware the scene needed resurrecting given what I've seen thus far? Seems pretty good to me... am I wrong?
added on the 2014-12-04 14:58:05 by oni_ oni_
Honestly, I'd just do a red cylinder with animated texture + shitton of glow, and then do the surface highlights as a second pass on the terrain itself.
added on the 2014-12-04 14:59:33 by Gargaj Gargaj
i'd do it like gargaj said with some stepped blurred layers (additively blended like the 'screen'-filter in photoshop) like gauss=3, 1 and 0.5 (or whatever values work to give the light a nice bleeding effect) and like 3 to 5 red light sources along the laser so the terrain can get some coloring
Alrighty :) Thanks chaps! :)
added on the 2014-12-04 15:14:23 by oni_ oni_
Quote:
Honestly, I'd just do a red cylinder with animated texture + shitton of glow, and then do the surface highlights as a second pass on the terrain itself.

This, but instead of a cylinder I'd do a camera-oriented billboard spawned between two worldspace points.
added on the 2014-12-04 15:16:44 by xTr1m xTr1m
The laser might just be a parallax particle string with animated positional blurring and blending. The terrain distortion looks like some 1./distance() tweaking vertex and/or texture UV data. I guess there are many techniques that lead to similar looking results. If you need exactly the same, you could always ask the guy (gal), who made the video. :)
added on the 2014-12-04 16:09:33 by tomaes tomaes
Thanks! Some good ideas! I'll have a play and see how close I can get. The particle idea is interesting. Might have a think about that. I've got a few bits and bobs on volumetric lighting I might take a look at but Im already doing blurring for other things, so glow might be the best and quickest option.

Cheers!
added on the 2014-12-05 15:49:58 by oni_ oni_

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