vray light:dome -how does it work?

[tammo]

i found this new light type: dome in the vray light rollout.

this sounds interesting for animations with faked GI look but i cant get it to work.
it just lights the scene like a simple omni light.

how does it work?

[Dynedain]

does it render faster than an omni?

[tammo]

no. its slow.
and no shadow.

[Gijs]

see it as an enviroment light (skylight) which works without using GI. Use similar multipliers (1-3) for this light as you would use for your GI environment light. Then it works and renders quite fast with a diffuse (skylightish) shadow

[tammo]

how do you use it?
if i set the icon in the middle of my scene, like the center of a sphere,
it shines to the outside like a normal omni.
the dimension settings dont work.

[Gijs]

I believe you can just put it anywhere in the scene. I think the size does not influence the result. IIRC, it 'places'a dome of lights with optimized sampling around your scene.

Can you otherwise post a screenshot?

[flipside]

Tammo,

put the multîplier to 1 instead of default 30.



it doesn't matter where you put it in the scene.

[tammo]

its just not working. it behaves like an omni light, but super-slow.
the light comes from the icon position.

i use max 7, maybe thats the reason?
all other features of the newest build work fine in max7.




another one without the two walls and ground:

[natty]

Give it some dimensions .... and incase your scene with the whole Light !! its not like max's dome light !... .....so you engulf the whole scene with the light.

[flipside]

Are you sure it's the same without any walls? As it's a skylight, when you model a building, the light will come through the openings and give you shadows like you have in the image now.

[tammo]

above is the scene without walls.

i changed the uvw size, too (the light box icon is now larger than scene)

[egz]

The dome light is always infinite, so it doesn't matter where you place it. The icon placement is just for viewport representation.

[tammo]

flipside, did you render that teapot with max 6?

on my last picture it looks like the tire is floating outside the dome.

[Stamcat]

Tammo,

I think that the solution is to render with
vray materials!

Stamcat.

[flipside]

Max5

I just created that very simple scene, put in a dome light with multi=1 and hit render (default lights were turned of, don't know if that changed anything but I have it off by default)