Colour Bleeding - Help!

[chiefdiddy]

Hi Guys!

This is my very first post in a forum... sadly because I need help!

There I was happily setting up my first SketchUp scene to be rendered with the Vray plugin (huge thanks to the team involved!) and after a few teething problems with rectangular lights I got a basic solution I was happy to start with. I then added a few basic materials and some additional lights to my big empty room before I started filling it with "stuff" and tweaked the settings a bit further to produced the image attached...

Now, I've nothing against pink roofs in general...it's just that...thats not really the look I was going for here. I'd prefer the roof to be the white grid I'd setup and intended it to be. So my question is this... how do you control the colour bleeding in VRfSU? I normally use the "VrayOverideMtl" method and set the GI material to a standard VrayMtl with an appropriate colour, but this seems to be missing from VRfSU. I've tried the lowering GI saturation method too, but this affects the whole image rather than just the offending material (in this case the floor).

Any help on how to control the colour bleeding would be most welcome - thanks guys!

(to avoid confusion, the "VrayOverideMtl" is different from the "Override Materials" option in the Global Switches options)

[dalomar_cg]

Re: Colour Bleeding - Help!

So I can assume your are migrating over from vfMax? Unfortunately we don't have the VRayOverideMtl (a shame because it could be quite useful), so to get rid of the color bleeding you will have to do a little work around. All you need to do is set a plain white material for your floor. Next you need to render out any light calculations (IR,LC) and save them, which you can do by checking Don't Render Final Image (we only want the light solutions) and rendering as usual. Now all we need to do is load up those saved light maps, change the material back to what you had it, and disable Don't Render Final Image. Then you should be good to go and your color bleeding should be minimized.

[chiefdiddy]

Re: Colour Bleeding - Help!

Thanks for the reply Dalomar.

Yeh I'm mainly based in Max work but love the "fun" factor of SketchUp for quick concept design images, and VRfSP certainly takes that a stage further without messing around with Importing/Exporting.

I had a quick go over your advice below this morning and it works perfectly! Much thanks!