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.
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 
Thank you. It’s working perfectly.
dbuchhofer that sounds interesting … can you show us some image outputs of that project ?
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
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.
yea they kinda hit you on the face , those lights …the rest is nice , you can probably tone it down a little
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..
