light emitor

[Focusing]

Hi,

I need some help with getting a material that emits lights. I've tried activating the TRANSLUCENT options, but I don't seam to get any results.

[dbuchhofer]

How you go about that depends on which version of Vray you are using..

If you are in the 1.45.* or 1.46.* versions.. (The 'betas') then you can use the VrayLightMaterial type.. and set it there.. advantage that you can do any color~!@

If you are using the 1.0* versions, then your best bet is to use a standard material and put an output map in the self illumination map slot, and check out the color in the self illumination thing up top to be your color.. (Note: At very high output amounts the color tends to gain towards its primary hue)..

Also, object lighting like this is *VERY* slow to render since it creates an extremely high contrasting scene, so the QMC sampler needs to take many many many more samples to reduce the noise of the lighting.

I just recently finished a project that had a ton of little strange bumped out lights.. that i would have gone insane trying to do with Vraylights.. a way i did it was to Render a closeup of the light (Its halo) as an object light, on very high settings.. render a closeup of it without the object light on, and difference them in photoshop to get just the 'light corona'. this i applied on a little plane surrounding the light as a standard material, self illiminated, with the 'advanced transparency' set to additive..

Many ways to do things... be creative, don't just hit render and come back 3 days later like a lot of folks do

[Focusing]

Thank you. It's working perfectly.

[kippu]

dbuchhofer that sounds interesting ... can you show us some image outputs of that project ?

[dbuchhofer]

heres a couple work in progress shots, to be an animation eventually.. so needless to say i'm a stickler for trying to squeeze as much speed out of vray as I can

[DaForce]

IMHO those lights dont look that good. The rest of the scene looks great, albeit a bit "one colored"

Does the light that they produce add much to the overall light levels in the render?

At the moment those little lights are far to distracting.

[kippu]

yea they kinda hit you on the face , those lights ...the rest is nice , you can probably tone it down a little

[dbuchhofer]

yea, these are mostly just tests for me trying to bring the rendertimes down to animatable levels.. planning to tone down the lights a LOT.. the only way the coronas would be that bright would be in a totally dark room...

the main point being that those bump lights are a material trick, and not actually lights, or object lights... meaning i can render easily at medium/low without having to worry about huge splotches..