reboot Posted January 2, 2008 Share Posted January 2, 2008 Hello my first post Ive started using mr about a month ago and after countless problems witch with the help of this forum ive been able to resolve them... except this one : Im unable to figure how to make transparent materials ( standard or A&D ) to be transparent agains a sky dome envolving the scene (they behave ok with all other elements of the scene) Using max9 with mentalray, standard A&D Thin glass material Any help finding the light would be appreciated Thanks Link to comment Share on other sites More sharing options...
DennisHolland Posted January 2, 2008 Share Posted January 2, 2008 Try boxes as windows and play with the 'flip normals' function. Regards, Dennis Link to comment Share on other sites More sharing options...
Peter M. Gruhn Posted January 2, 2008 Share Posted January 2, 2008 Sorry, a bit vague: There are settings for what happens when ray tracing hits certain limits. These are often set to black, you may need one set to environment. I'd look more carefully but don't want to interrupt this render. Link to comment Share on other sites More sharing options...
reboot Posted January 2, 2008 Author Share Posted January 2, 2008 Thanks for Your input Dennis but i allready tryied that with no sucess... Anyway i figured out what the problem was... i and circled it ... The dome was Jeff Patton´s latest sky dome tutorial with those fancy hidden production shaders, and were those that caused the problem with the glass. I circled it replacing the mr Raytype Switcher with a regular bitmap... and voila transparency all the way... If anyone knows how to resolve this with the original shader... Thanks everyone Carlos Diogo Link to comment Share on other sites More sharing options...
pixelperfectg Posted January 2, 2008 Share Posted January 2, 2008 If anyone knows how to resolve this with the original shader...Sure. When you look through glass you're viewing the refraction. Notice the refraction map slot on the mr Raytype Switcher? Simply instance copy the map you used the reflected rays slot to the refracted rays slot and that will solve your refraction issues. Link to comment Share on other sites More sharing options...
reboot Posted January 2, 2008 Author Share Posted January 2, 2008 Unbelivable ! I almost could swear that i tried that.... It is working perfect now... Thank You Jeff , You have been a great help in my learning curve... Ok entering now in month 2 of mr and what would be the next problem ? maybe that rpc opacity issue with fog and background ? Thanks Again Jeff Carlos Diogo Link to comment Share on other sites More sharing options...
nirsul Posted February 1, 2008 Share Posted February 1, 2008 Sure. When you look through glass you're viewing the refraction. Notice the refraction map slot on the mr Raytype Switcher? Simply instance copy the map you used the reflected rays slot to the refracted rays slot and that will solve your refraction issues. Jeff Could you add this solution to your original post on your blog (and expand on it) ? I had the same problem, although I did not try to solve it. BTW - How do you know what you know about MR ? Regards Nir Link to comment Share on other sites More sharing options...
pixelperfectg Posted February 1, 2008 Share Posted February 1, 2008 Could you add this solution to your original post on your blog (and expand on it)?It's already clarified further in my latest blog entry on controlling FG using the raytype switcher. Also, don't overlook the production shader documentation that ships with 3dsmax & the info about them on Zap's blog: http://mentalraytips.blogspot.com/2007/10/production-shaders-hidden-treasures-of.html BTW - How do you know what you know about MR?From pestering the crap out of Zap, reading all the documentation/websites/books/etc. that I can get my hands on, and most importantly...setting up test scenes & adjusting settings one by one to see exactly how & what they do. BTW, thats the same approach I have to all rendering programs...minus the pestering Zap deal of course Link to comment Share on other sites More sharing options...
nirsul Posted February 1, 2008 Share Posted February 1, 2008 Thanks for the quick reply. Well, I don't have access to ZAP , except for his blog. :-( Nir Link to comment Share on other sites More sharing options...
pixelperfectg Posted February 1, 2008 Share Posted February 1, 2008 Hey I don't have any special access either...but we all can find his help in almost all forums & on his blog. Tip: Even read through the Maya forums because you'll find a lot of the mental ray information is universal. Link to comment Share on other sites More sharing options...
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