Hey guys,
Something I’m working on. VRay was worked like a charmed so far giving me quick test renders. Then I came across this:
VRay Adv. 1.09.03g
Using high preset with 50 sub d’s and 20 interpolations. This image I used a stored irradiance map from previous image. I only get these weird splotches in the shawdows - not in direct sunlit areas. Any ideas what causes this? My settings are pretty high. The subdivisions on my direct light are at 40.
Xavier
just guesing but 1: if there are any changes from the precaled irrad map, you’ll have to redo it, 2: if it’s not that then instanced objects or using the mirror tool can cause these.
Hope that helps_Jay 
that was quick…
Yes - I used alot of instanced geometry and I mirror lots as well. What is the work around for this? Do I tell Vray to use instance rather than replicate in the system box?
Xavier
yeah use replicate, and use the mirror modifier not the mirror tool thats in the maintool bar.
What is the difference b/w the mirror modifier and the mirror tool (in the toolbar)? Would convert to editable mesh get rid of this stuff?
thanks,
xavier
not shure, thought I would be interested to hear if it does.
reproducable
ok…i redid the irradiance map and eveything come out ok.
But then, using the stored map, I change angle and get this…
I haven’t tried collapsing everything to editable mesh b/c I really don’t want to (ease of editing later on). Any other ideas?
I’m usnig all Vray materials, with Blinn shaders. Here are my settings:
Thanks.
Xavier
ok, thats simple. the irradiance map is view dependant. so you need to re-render that frame with add to current map checked to get the GI samples for that view, then render from file shoud be fine.
Love the image BTW
great!! thanks for clearing that up for me.
makes a lot more sense.
BTW - I’ll post the project when it is finished (1-2 days)
regards,
Xavier
