SElf- Illumination for VRAY MATS

[Da_elf]

for the self illumination cant you just use a blend material with vray light material in one slot, your vray mat in another and the mask in the other?

[percydaman]

for the self illumination cant you just use a blend material with vray light material in one slot, your vray mat in another and the mask in the other?

theres like 10 ways to "get around it" but none are as simple, elegant, and effective as actually just having the damn slot...

[Morbid Angel]

since we are on the topic of extra slots and stuffs for vray mat, i'd vote for dispersion aswell, absorbsion, scattering.

[percydaman]

do you really need a slot for dispersion though? I guess "someone" could come up with a reason for one, but I would think you would either turn it on or off, and adjust the intensity and maybe samples or something... I mean maxwell doesn't have a dispersion slot does it?

[Morbid Angel]

percy yes, i didnt mean a slot, but an option. But actually a slot for dispersion would be good to, just if you want to get super custom.

[v_wrangler]

for the self illumination cant you just use a blend material with vray light material in one slot, your vray mat in another and the mask in the other?

theres like 10 ways to "get around it" but none are as simple, elegant, and effective as actually just having the damn slot...

Couldn't ve said it better Morbid, another way to simulte diffusion effect is use RGB Mutiply..

[vance3d]

I'm curious to see if any of the new materials mentioned in the press release about whats being shown at siggraph will address any of these issues.

I'd like to see additional slots for self illumination and diffusion as well.

V Miller

[suurland]

self illumination have been wished for ever since the VrayMtl was made, but yet we still don't have it :/

/Thomas

[egz]

I agree that we really need a self illumination slot in the vray material!

since we are on the topic of extra slots and stuffs for vray mat, i'd vote for dispersion aswell, absorbsion, scattering.

Absorption and scattering is in there already, though scattering could be faster. Refraction fog is the same as absorption. Dispersion would be nice to have, but it wouldn't be used a lot if it is as slow as in other renderes. It does add to the realism in a subtle way though.

[Morbid Angel]

egz i see, what I ment tho was the scattering of light on the surface not in side of the surface....maybe im not understanding it correctly, but now absobsion/scattering happen only when material is refractive.

[vlado]

Currently the best way to do a self-illumination material with additional properties is to use a shellac material with a VRayLightMtl as a base, and a VRayMtl with 100% blending as the shellac material. This will be as efficient as having a slot in VRayMtl.

Best regards,
Vlado

[suurland]

Doesn't sound efficient to me or intuitive for that matter, sounds more like a cheap hack. And what about rendertimes? Shellac is usually painfully slow?

/Thomas

[trixian]

Hmm, why put the vraylight mat in the base slot and not in the shellac slot?
Testing this it seems to yield the same result, though my test was fairly simple.

[percydaman]

Doesn't sound efficient to me or intuitive for that matter, sounds more like a cheap hack. And what about rendertimes? Shellac is usually painfully slow?

/Thomas

hmm...maybe your thinking of blend? Ive never experienced too much of an extra rendertime when using a shellac. Ill have to try this out and see how it goes though.

[v_wrangler]

Doesn't sound efficient to me or intuitive for that matter, sounds more like a cheap hack. And what about rendertimes? Shellac is usually painfully slow?

/Thomas

Same here - shellac takes too long to render... But I'll give it a try. Thanks vlado.