Glass material transparant and reflective
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Hi All
In my interior scene, I've placed 4 glass panels behind each other. Each glass panel has a glass materialisation. 95% transparant en Texfresnel reflection map.
In other words: The glass is transparant and reflective.
The renderings, especially in the areas where the glass is situated, take a lot of time. I mean a LOT of time. My last render took more than 2,5 hours to finish. (resolution 1024x768, not THAT extreme...)
I guess, because the glass panels are situatied behind each other, the computer keeps reflecting the scene indefinitely.
Is there a way to tell vray to reflect all the objects in the scene 1 time instead indefinitely.Suggestions?
P.S. Sorry for my english. It's not my native language.
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Don't use transparency on class. Use Refraction. Transparency in V-Ray is not handled well. If its thin transparent glass, set the transparency to 0 (white) and and a reflection layer with a color filter if need be, but don't use transparency.
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Ted,
I created the material within sketchup. A standard grey-green color where i set the transparency to 95%. Then, within vray, I created the fresnel reflection. I did not use the transparancy option within vray.
You're mentioning not to use transparancy within vray. does that include the transparancy controled within sketchup?Thanks again!
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Ted is referring to the transparency in the Sketchup material editor. If the glass material is not at 0% opaque, you will exprience longer render times, especially with multiple layers of glass.
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Ok. Understood.
I've never worked with refraction. Saw a youtube video last night for the first time. Looks fantastic. I'll try to switch from transparancy to refraction as soon as possible. I'll keep you posted!Thanks everybody.
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Thanks for the clarification Andy! Emn, Try using refraction, but if you cant figure it out we have some materials you can use as a reference on the website, http://www.chaosgroup.com.
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There is a good discussion on vray glass material setup here.
http://forums.cgarchitect.com/73172-window-glass-material.html
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@emn said:
I guess, because the glass panels are situatied behind each other, the computer keeps reflecting the scene indefinitely.
Is there a way to tell vray to reflect all the objects in the scene 1 time instead indefinitely.Forgot to say - you can set how many times the glass reflects/ refracts with the "refraction max depth" setting. In global settings, you also can set "Max transp levels" and a refraction override.
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