3dmax 2012 vray 2.30 - need help with HDRI lighting using few techniques

[piotrek255]

Hi,

 

After a long time testing by myself i decided to ask for help.

I tried many techniques like:

 

using a hemisphere and vraylightmaterial

putting hdr into vray dome light

putting and removing the hdr from enviroment slot in the above examples

 

my HDRi is a 50mb high quality 8k parking lot scene with defined sky point, i work in gamma 2.2

 

I tried tweaking a lot of settings with IM/LC/BF but i could not get a clean render, only brute force with 100 subdivs gave me clean render but the rendering time was absurd....

 

Is there a way to get a clean splotch free render with reasonable rendertimes?

 

[Ismael]

http://forums.cgarchitect.com/71909-v-ray-gi-hdri-splotches-blotches-spots.html

[piotrek255]

thanks, but i tried it, it gave me some crazy rendertimes, the strange thing is i done the same setup on a different machine and i had no splotches, also, i didnt have to use so much samples to have clean results.

[Scott Schroeder]

Please post a screencap of all of your vray settings. Without them to use as a start, we can't really tell you where to fix things. Right now, we're like a blind man trying to solve a Rubix's Cube.

[Ricardo Eloy]

The pics you attached look like the HDRI is in the GI Environment Override, which will give you a blotchy result. Make sure you have absolutely nothing in there (no environment whatsoever) and the HDRI is a VRayHDRI map in the VRayLight (dome).

[CliveG]

Try recent Viscorbel tut, this may help

 

http://viscorbel.com

 

Good luck