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Software Discussion
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3D Studio Max
heat vapor effect in 3ds max?
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16 Aug 2005Hey guys,
anyone have any experience or know the procedure on how to create effective heat vapor? i wish i had a picture, but google was no help :X
kind of liek a hot, sizzling street on a summer afternoon or the aftertrails of a rocket maybe. It jsut popped into my head today and I wondered if anyone knew anything.
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16 Aug 2005liek when u throw water onto a smolding rock in a sauna kind of heat vapor? if so then thats pretty much just whitish transparent smoke
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16 Aug 2005
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16 Aug 2005
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16 Aug 2005
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Kieran 57 posts20 Aug 2005Hey, my first proper post.
I'm not sure how to do it in max though I think I know of a way in AE if you want. (this seems easier to me)
The first step is to just duplicate the layer you want blurred. Then give it some gaussian blur, enough to notice for now, you can adjust it later.
Then to make it a heat blur instead of just a blur, make a new solid layer and apply to it the particle playground effect. Most adjustments to this property can be done to suit your own needs but do turn off gravity, make the barrel radius wide to cover your desired area, and adjust the particle life lenght. Now gaussian blur this particle layer to your choosing.
The last real step set this particle layer as an alpha map in the blurred/duplicated layer's track matte settings. That should set you on your way the rest is just fiddling.
Another thing you could try is slightly similiar, dup/blur the desired layer but give it a wave warp or some distortion setting and then give it some moving(probably blurred) opacity map as in the other method.
Hope that might help.
-Kieran -
Double Supercool 10 posts28 Sep 2005I would suggest checking out http://www.dvgarage.com for a video on how to do this in post with a compositing application, it will be much, much faster.
In a nutshell, you make a particle system where you want the haze to be (exhaust, horizen etc). You set the system to emit RED and GREEN particles facing particles of a reasonable size (red and green is important). You render of the particles as a separate layer (with matte/shadow on your other objects if you need it). It will also need an alpha channel.
You bring your background footage into your compositing application, say Autodesk combustions. You bring the particle layer in as well. You BLUR the particle layer quite heavily. You add a DISPLACEMENT operator on your background footage and tell it to use the blurred particle layer as the source. Now you background footage is all wobbly where the particles are. BUT, it could be better.
With a displace operator you usually have a choice of which channel to use to do the displace (alpha, colour, red, green, blue etc), so you can actually assign displacement based on the RED and GREEN channels of the blurred particle layer! This makes the distortion more random and not so computery.
Lastly you want to add a COMPOUND BLUR on the background layer, again using the blurred particle layer as the source. This will only blur around the displacement, not the rest of the image.
If that made sense, well, good on you! I had to watch the video a few times and muck about a bit to get the order right, but once you do it a few times it all makes sense.
Good luck. -
olli96 30 posts28 Sep 2005we got also some heat effect tutorials at 3d-palace.com ->
http://www.3d-palace.com/index.php?opti ... pic&t=5115
http://www.3d-palace.com/index.php?opti ... pic&t=5799
Olli -
Double Supercool 10 posts29 Sep 2005
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