dispersion material test

[jujubee]

wow amazing.

[plastic_]

glad you like it...

i'm working on a kickass preset browsing system, so the release is pushed back to next week.

if anyone wants to play with a pre-release, drop me a PM...

[jujubee]

Is it possible to script it in this material so that items/objects with only these materials emit caustics?

It would be a pain to do a manual override on an entire scene with caustics turned on. To be honest, I really don't use them much because I'm generally afraid of raising rendering times.

[plastic_]

Is it possible to script it in this material so that items/objects with only these materials emit caustics?

It would be a pain to do a manual override on an entire scene with caustics turned on. To be honest, I really don't use them much because I'm generally afraid of raising rendering times.

well, that can be controlled with the object properties, or with material wrappers.
as far as i see, there is no way to tell an object, that it must be the only one generating caustics.
instead, the other objects have to be excluded from caustics calculation.

but for gemstones caustics aren't that important, i think. in the last pic, there are no [photon mapped] caustics.

i hope the caustics calculation will improve in vray, right now they eat up RAM like crazy. i find it almost impossible to get clean results with area lights. i hope that some day we can render them in a progressive, memory saving way, like the lightcache.

[Fekta.studio]

plastic this looks really good and very useful. cant wait to see it finished. And btw, check you PM.

[vlado]

i hope the caustics calculation will improve in vray, right now they eat up RAM like crazy. i find it almost impossible to get clean results with area lights. i hope that some day we can render them in a progressive, memory saving way, like the lightcache.

Have you seen this thread: http://www.chaosgroup.com/forums/vbu...ad.php?t=35579

Best regards,
Vlado

[^Lele^]

Vlado, any change on the blend material supporting scripted ones?
Or does the support have to be done on a per-material basis?

[plastic_]

hi vlado, yes i've seen it.

but now i suddenly understand it, after reading again.
my mistake was that i didn't use the max density value, to stop the photons to be stored into memory!

first tests are looking promising...
i think this should be a standard option in the render settings, not a hidden maxscript line.

[Crayox13]

I just can't remember how to start this material manually! Searched the forum and didn't fin that tutorial, I know it's somewhere. It's about blend material, and making different colors of refraction based on the angle - falloff procedural. Can anyone send a link please!

[dlparisi]

http://www.chaosgroup.com/forums/vbu...ad.php?t=35110

[Crayox13]

Yes!!! That's the one. Thanks!

[stilgarna]

Hello, any news about this shader ?

Best regards...

[dellis]

I was kind of wondering about this too!

[vlado]

We do have dispersion planned for the next major version of V-Ray.

Best regards,
Vlado

[rivoli]

We do have dispersion planned for the next major version of V-Ray.

which, of course, raises the question: when?