Strange white dots/point circles in render- help !

[ulkor]

Hi !

 

I have some white dots in my renders with v-ray (sketchup) . It appears on the floor if i put a dark color / texture .

 

I m new to v-ray , and i am using a demo version.

 

I have my final jury in 4 days and i cant find a solution.... please help !

 

 

Any ideas ?

 

ps sorry for my english !

[kippu]

put up a bigger image so that we can see the dots and i thought demo came with watermarks

[ulkor]

Here is a better resolution.

 

I noiced that the dots circles always start from the camera position.

 

[ulkor]

Here is a better resolution.

 

I noticed that the cirlces dots always starts from the camera position.

 

img5.imageshack.us/img5/9718/dotsf.jpg

[dggecko]

Same problem here, does anyone know the solution?

[The Miff]

I've had a similar problem, and I always rectify it by turning on 'Pixel Sub-Mapping', under Vray: Color Mapping (Render Options).

 

Let me know if that fixes it or not.

[john2000]

Yes, that would have been my solution as well! Should work

 

As far as I know V-ray is trying to reflect a bright light and the settings - sub pixel mapping and clamp output in colour mapping helps calculate bright pixels next to dark ones.

Edited June 10, 2011 by john2000

[The Miff]

Thanks for explaining that, Nigel. I'm new to V-ray and the depth of it is overwhelming. Tutorials will simply say, "Do this, check that", but they don't explain what the option changes or the theory behind it.

 

It's much easier to remember all the different options when I know what they're doing.

[john2000]

absolutely.