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View Full Version : Smoking Tires in 2K- Suggestions needed

Phlok
09-23-2008, 06:44 PM
Hello Everyone,

A friend and I are doing a small animation in a 2k resolution. In the aimation, there is a plane landing and I want to create a very realistical smoke effekt for the smoke that's rising when the plane's landing gears are touching the airfield.

The reason for me posting here is that I need some advice on wich technique to use best for this effect in that resolution. I am not very keen on betting on the wrong horse for weeks so I wanted to collect some suggestions and I am very happy for any good idea!

I tried using sprite particles, but I suppose that could look too artificial in high resolutions, also the effect is supposed to take place quite close to the camera.

Particles are a good means for controlling an effect, e.g. the way a cloud's gonna move but can cloud particles really do the job here?

Right now I am trying to focus on fluids, but I am unexperienced in rendering them (as good and real it looks in the viewport as bad does it look using mental ray).

What do you suggest I shoud be focussing on? Maybe something I didn't take into account, yet?
ovspianist
09-24-2008, 02:13 AM
You'd better render fluid in maya software, mental ray might develop a fault when rendering fluids.
Bonedaddy
09-25-2008, 04:40 AM
Have you tried Overburn?
Phlok
09-25-2008, 09:16 AM
Thanks!

If that's what you mean by overburn:

http://petershipkov.com/development/overburn/overburn.htm

...I've been thinking about a similar technique (using particles and shading them with fluid textures) as explained in a different thread here. Overburn looks very promising!
phix314
09-27-2008, 06:31 PM
I really think that overburn or something like that would be overkill for something like this. Making a simple 3d fluid container would suffice, in my opinion.

In addition, I'm not sure what fault you speak of, but MR has no problems rendering fluids that I've ever seen, especially something like this.

How much reference do you have for the effect?
Aikiman
09-27-2008, 11:14 PM
You could always use a fluid as a force to affect your particles (cloudies) instead of using complicated expressions or a mix of fields. Attach a motion field to the wheels that creates swirling velocity vectors in your fluid then use those forces to affect your particles.
phix314
09-27-2008, 11:28 PM
This needs a bit of tweaking, but I think this would work well, especially with some motion fields as Aik has said. I still don't think particles are going to give you what you're after... Something like Fume might though.

http://s126.photobucket.com/albums/p104/roaphotosharing/?action=view&current=smokehit.flv
Phlok
09-29-2008, 08:41 AM
Thanks for all the replies!

Using a simple fluid container and some fields was me idea in the beginning of the project. It had a nice look in the viewport, but it didn't look that good when rendered.
But I am not very experienced in rendering Maya fluid containers.

Right now I use spheres as particle instances and I mapped a fluid onto them. This works very good and is relatively fast as I do not need many instances. Also there's a lot of options for tweaking the fluid shape node, which I really like. I am also planning on writing a little Python script for fasciliating those effects for my colleagues and me.

The Animation by phix looks a little like cigarette smoke, but with some tweaking it could be used for my effect. I'd like to take a look at fume, but unfortunately I do not have a copy of Max in my closer proximity.
Als
09-29-2008, 10:22 PM
Kolektiv has a very nice "Particles - Visual Effects Series" DVD and very nice tire smoke made with sprites:
http://www.kolektiv.com/products.php?PRODUCT_VIEW=Education
With all the steps, scripts, expressions, etc. you might need...


Als
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09-29-2008, 10:22 PM
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