Photorealistic Explosion shading-rendering

[rival2000]

Hi
Maya has very powefull and flexible particle system, but How can I do shading and rendering volumetric explosion, fire, smoke more realistic; for example Final Fantasy, Shrek, Independence Day or Twister . Standart Maya tools paintFX,fire, smoke have poor shading, I'm using LW too, and She has Hypervoxels, Max has plug ins such as Afterburn. Maya is great tool and highend sector using it, I see very complex explosion and fire rendered image in Maya example, finally they are doing in Renderman or Maya, How can I do .

[joojaa]

Well the trick is to combine results of multiple hw renders with eachother if you need shading you might need a sw render too.

Then the most work id done in comp so that it looks right.

Also some more serious productions use custom shaders in renderman to do the trick. Thatway they will get phuysically corrct behaiviour. But even then they are likley to do 50% of the job in comp.

[tbriggs]

In reply to:
Hi
Maya has very powefull and flexible particle system, but How can I do shading and rendering volumetric explosion, fire, smoke more realistic; for example Final Fantasy, Shrek, Independence Day or Twister . Standart Maya tools paintFX,fire, smoke have poor shading, I'm using LW too, and She has Hypervoxels, Max has plug ins such as Afterburn. Maya is great tool and highend sector using it, I see very complex explosion and fire rendered image in Maya example, finally they are doing in Renderman or Maya, How can I do .

The way to do it is to use MTOR to export particle animations to Renderman. You create custom per-particle attributes to pass color, opacity, etc. to the Renderman shaders. Often sprites are exported for smoke because they render fast. Maya is not up to the task because it cannot software render sprites, cannot motion blur particles in software rendering, and has crummy shadowing compared to Renderman.

/*In theory, there is no difference between theory and practice. In practice they are very different*/

[rival2000]

Thanx
Can you give me, complex some tutorial or scenes who Dust, Fire, Explosion..etc whatever, Renderman or Maya.
and, Why Maya has 2 render for particle: SW and HW?
Sorry for English.

[stormtroopar]

In reply to:
Thanx
Can you give me, complex some tutorial or scenes who Dust, Fire, Explosion..etc whatever, Renderman or Maya.
and, Why Maya has 2 render for particle: SW and HW?
Sorry for English.

You can check this out. Its one of the better explosion/fire type shader.

http://www.3dluvr.com/lightengine3d/downlo...s/ashCloud1.zip

I actually suggest using spheres or particles with spheres for the actual debris, and then use a volume shader to create the look of the debris. Look at the shader for a start, you probably need at least a few layers with different kinds of effect that takes place simultaneously, the outer debris, the inner core, the smoke, the smaller flames that rushes out.... and on and on..... for a photorealistic effect. And as mentioned earlier, the trick does come down to the compositing part.

Good luck.

P.S. why Maya has 2 render for particles?
Cause they are LAME!!! having a hw renderer is fine cause it can save time sometimes, but the fact that the particles that render in hw CANNOT render in sw and vice versa is very lame!!! Also, sw particles still can't motion blur, til now???

Alright, I will stop complaining. but for particles, its probably best to render through PRman if you can.

[jtk77]

P.S. why Maya has 2 render for particles?
Cause they are LAME!!! having a hw renderer is fine cause it can save time sometimes, but the fact that the particles that render in hw CANNOT render in sw and vice versa is very lame!!! Also, sw particles still can't motion blur, til now???

.

agreed..they should REALLY look into their particles systems. They used to be the best..now they are falling behind.
But trhe main reason might be becosue their core clients don;t use them ..so they don't care.
Same rason i'll bet they didn;t realy do much with the built in renderer( thought its better than msot give it credit..) ..main clients use Renderman or other..so why care?
Us little guys who don;t have a million bucks to get everything under the sun suffer.

But ahh..who knwos maybe they are qworking on it?

................

[deke-kincaid]

Use the method on the maya queen page for creating nice clouds that self shadow. Just modify the tutorial so you are particle instancing spheres on the particles instead of the ecopy script.

http://aw.aliaswavefront.com/pit/maya/maya...txt/tutor6.html

Deke Kincaid

[rival2000]

Thanx, for post
Stormtroopar, your example great.