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miggsy
heat vision as in smallville
on Nov 7, 2005 at 2:59:11 pm

Hi everyone,
Im currently working on a project that requires the same heat vision effect as used in smallville.I have tried various methods but being new the particleillusion and after effects i cant quite get it right.Can anyone direct or instruct me as to what i should do or even a brief tutorial.
I dont really want to use masks in this effect as it creats a straight edged line as a beam which isnt realistic enough for me.Particles creating just the heat directional shimmer is what im after.thanks in advance



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Aharon Rabinowitz
Re: heat vision as in smallville
on Nov 7, 2005 at 3:32:28 pm

This effect is done similar to the matirx buttlet trail effect, which is a 3D effect.

Hopever, if you can lock down the direction of the heat vision, you can pull it off using pIllusion alone (OK) or pIllusion with AE (Better).

PILLUSION: In pIllusion, you'd need to find an emitter that does something close to the look of what you want. In the particle Properties, use the settings called Get Color from Layer and Update color from Layer. This will make the particles use the color below them as it's own color (so you;d need to use your footage as a BG image in pIllusion) - there is a library called "color from layer" included with pIllusion, and if you use it on a BG image, you will get anidea of how it works.

PILLUSION + AE: Again find the particle shape and look that you would want transfered into heat shimmer effect. Make all particles white, black, gray, and put them on a BG color of 128 Gray (absolute or pure gray). Make sure your particles are no intense. Feel free to use your footage as a BG reference, but remember to turn it off, so that it's rendered over a gray BG. Render out your particle Footage.

In AE, drop in your live action footage, and your particle Footage. Make the particle footage invisible (turn off it's eyeball).

Add the following effect to the live action footage: Effect > Distort > Displacement map. Set the particle footage layer as the displacement map. Preview to see how it looks. You wil probbaly want to raise the diosplacement settings fromt he default 5 to something like 20 for both verticle and horizontal.

OK, so White (255) particles will displace the pixels in one direction, black (0) in the other, and grays in either direction, depending if they are higher or lower than 128. The BG of the aprticles are set to 128 Gray because 128 Gray is nutral for diplcaements, and will not effect the footage - and so you want most of the footage to be that absoulte gray until particle run over it.


I have a whole tutorial on this, which goes into depth abotu the nature of using pIllusion and AE for effects like these, on my Creative Cow Master Series DVD: ParticleIllusion Fusion Volume 1 - http://www.pillusionfusion.com

Hop this helps you get started.

----------------------------------------
Aharon Rabinowitz
aharon(AT)yahoo(DOT)com
http://www.allbetsareoff.com
----------------------------------------
Creative Cow Master Series DVD
particleIllusion Fusion Volume 1
available @ http://www.pIllusionFusion.com


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miggsy
Re: heat vision as in smallville
on Nov 7, 2005 at 8:03:38 pm

thanks for the advice.i will give this a try and let you know how i get on.Ill have a look at your dvd page as well.



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miggsy
Re: heat vision as in smallville
on Nov 8, 2005 at 10:48:31 am

hi again,
thanks for your advice.I have made the effect which has come out pretty good.But im having trouble with the AE combination.When i import the rendered PI effect into AE over my footage,then whole footage comes out as the BG color grey.Im not sure what im doing wrong here but i think up to that point everything is ok.If im doing something wrong please advise me.
thanks again



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Aharon Rabinowitz
Re: heat vision as in smallville
on Nov 8, 2005 at 1:17:40 pm

Are you using the PI method, or the PI + AE method?

I assume, PI + AE becasue you rendered on Gray.

In AE turn the visibility for the particle footage off (Eyeball switch). It doesn;t need to be seen to work.

That way, all you will see is your footage, plus the distortion (which is created by adding the displacement map effect directly to the live-action footage).

If my assumption is not correct, and you are not doing it this way, please give me a step-by-step of what you are doing in both pI and AE, and I can help isolate your problem.

----------------------------------------
Aharon Rabinowitz
aharon(AT)yahoo(DOT)com
http://www.allbetsareoff.com
----------------------------------------
Creative Cow Master Series DVD
particleIllusion Fusion Volume 1
available @ http://www.pIllusionFusion.com


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miggsy
Re: heat vision as in smallville
on Nov 8, 2005 at 7:31:35 pm

thanks aharon,your advice has worked and the footage looks great.I have to tweak the particles abit to get them perfect but other than that everything seems to be working perfectly.Thanks again for your sharing your knowledge.



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Aharon Rabinowitz
Re: heat vision as in smallville
on Nov 8, 2005 at 9:36:41 pm

Not a problem. Glad I helped. Can you post your video when your done? - you'll need your own webspace for that though - they don't provide space for that here.

There are other things you can do to enhance the effect, such as turning the particle layer back on. setting the opacity realy low, and using the "overlay" effect - it may be more trouble then it's worth though.

Aharon



----------------------------------------
Aharon Rabinowitz
aharon(AT)yahoo(DOT)com
http://www.allbetsareoff.com
----------------------------------------
Creative Cow Master Series DVD
particleIllusion Fusion Volume 1
available @ http://www.pIllusionFusion.com


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marksd2167
Re: heat vision as in smallville
on Nov 22, 2005 at 3:53:57 am

I would like to see it to. about free web space. I found this site that you can upload your videos to and other people will be able to view them with out much prolems. as long as they have quick time or what ever you render your video at. Here is a like to a short clip that I did a light saber effect on. You can follow some link to register and then up load your video. it didn't cost a thing.
http://marksd2167.blip.tv/



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