Brute Guy Posted July 22, 2008 Share Posted July 22, 2008 Hi all, Just having a few problems with this rendering, when ever I render with the glass layer switched on, it creates a patchy foggy effect on the surface underneath (which is a high gloss white plastic. Could anybody let me know what I could be doing wrong? Thanks Marc Link to comment Share on other sites More sharing options...
Victor Erthal Posted July 22, 2008 Share Posted July 22, 2008 i think that the inner surface of the glass and the plastic are coplanar. try making the tow volumes intersect a little so that the refraction is calculated properly (with no "air" between the two surfaces) Link to comment Share on other sites More sharing options...
Brute Guy Posted July 23, 2008 Author Share Posted July 23, 2008 Hi Victor, I'm not entirely sure what coplanar means, but I have from experience, understood that to achieve good glass effects, you need to overlap the glass etc. In this case, I couldn't deviate from the CAD data too much, in the end I turned off the 'caustics' tab in vray and this seemed to sort it? Thanks for the help though, Regards Marc Link to comment Share on other sites More sharing options...
Hao La Posted July 23, 2008 Share Posted July 23, 2008 You may want to take a look at this tutorial: http://www.aversis.be/extra_tutorials/vray_glass_liquid.htm Link to comment Share on other sites More sharing options...
Brute Guy Posted July 23, 2008 Author Share Posted July 23, 2008 Hi Hao, Thanks for that link, i've been there a few times but not had time to read this one. Marc Link to comment Share on other sites More sharing options...
Hao La Posted July 23, 2008 Share Posted July 23, 2008 No problem Link to comment Share on other sites More sharing options...
RobNJ73 Posted July 23, 2008 Share Posted July 23, 2008 Just an FYI... coplanar faces means you have polygons occupying the same space, one right on top of the other. Link to comment Share on other sites More sharing options...
Brute Guy Posted July 23, 2008 Author Share Posted July 23, 2008 Cheers Robert, think i've had this a few times before, now I know! Marc Link to comment Share on other sites More sharing options...
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