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Vray Sky/Skylight Portals
show user profile  jpedleham
Hey, Im working on a scene with skylight portals and a vray sky, standard setup. Problem is, the sky whites out when its at a brightness where the skylight portals provide a realistic result and when the sky is dimmed to bring back the blue colour the skylights are basically off. The camera is set to 1/40 shutter so its not that, I also noted that for some reason lights werent rendering. They are there, and on in the scene, but they dont illuminate anything as if they arent on.
Can anyone help?
read 1268 times
12/19/2014 3:37:14 PM (last edit: 12/19/2014 3:37:14 PM)
show user profile  STRAT
Dont use light portals. They be horrid things. No need if your lighting solution is correct ;)


read 1250 times
12/19/2014 7:38:00 PM (last edit: 12/19/2014 7:38:00 PM)
show user profile  mike_renouf
Crikey Strat. Really? Do you use light cache and irradiance map for your lighting? I can't get decent crisp shadows for interiors just from an HDRI domelight alone. Particularly if there are only a few windows in a scene.

read 1221 times
12/20/2014 11:32:24 PM (last edit: 12/20/2014 11:32:24 PM)
show user profile  STRAT
Why would i not use ir/lc? I normal use vray sky lighting (no extra hdri mapped domes) for my gi, which is hdri depth, and, if absolutely necessary, an area light in the window gap.


read 1215 times
12/21/2014 10:19:54 AM (last edit: 12/21/2014 10:28:03 AM)
show user profile  mike_renouf
I've been experimenting - seems I just needed more subdivs in the irradiance map and suddenly the shadows are much better. I always stay low on subdivs expecting to have horrid render times if they were high. Guess I got that one way wrong! The presets in vray for max really are s**t.

Thanks for the tip Strat!

read 1207 times
12/21/2014 1:17:44 PM (last edit: 12/21/2014 1:17:44 PM)
show user profile  jpedleham
ill give that a go strat cheers. I ended up just using a second vray sky in the override slot with a lower instnsity so the sky wasnt white.
read 1184 times
12/21/2014 11:08:51 PM (last edit: 12/21/2014 11:08:51 PM)
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