Interior Sunlight...

[rfellers]

I've got an architectural interior project that I am working on and I am having some problems. My client wants to have a bright sun coming in through the windows casting strong shadows on the floor. I have tried several techniques (ies sun, Vray light with high multiplier, etc.) with little success. I always seem to get bright splotches in various other parts of the rendering (mostly the ceiling). I am using a linear workflow if that matters at all. Will the new VraySun be a solution to this problem? Does anyone have any suggestions of how to acheive this?

Ryan

[mmikee]

Have you tried the standard direct light ? It works for me every time.
Good luck
Edit: use vray shadows with the direct light.

[rfellers]

Here is an very basic example of my problem...



IrMap - Low
HSph: 50
Interp: 50

LightCache
Subd: 1000
Ssize: .02
Scale: Screen
StoreDirect: Unchecked

The ceiling is diplaced via 2d vray displacement. I've tried IES sun, VrayLight w/ high multiplier, and this is direct light with x3 multiplier and an environment(skylight) overide with a sky blue color (multip. x1).

Higher IRmap rate settings only seem to result in smaller white spotches.

Any ideas? Would the new VraySun fix this?

Ryan

[Candelero]

@ rfellers

Can you please send me the scene exactly in this state as it is now.
I want to do some tests with it. Thank you
< nikki@chaosgroup.com >

Best regards,
nikki Candelero

[Da_elf]

well with GI set to low possibly its because your GI is bleeding through the roof from outside or something

[rfellers]

I think I solved it - problem appears to be with the displacement on the ceiling. Light was bleeding in through the roof from the outside as Da_elf suggested. Workaround is to create a box above the ceiling to block the light. Is this a documented displacement bug?

Thanks for the help,
Ryan

[ene.xis]

i think this is not a bug, but a geometry error caused by ur displacement.
the displaced geometry must be intersecting those beems or leaving some gaps in the borders...

[DaForce]

sounds like your roof is single sided??
Vray doesnt like that too much.

[ene.xis]

u might also wanna do a LOT of reading and chek those linear work flow threads....it might give u a boost on that GI solution