Introduction to Maya - Rendering in Arnold
This course will look at the fundamentals of rendering in Arnold. We'll go through the different light types available, cameras, shaders, Arnold's render settings and finally how to split an image into render passes (AOV's), before we then reassemble it i
# 1 02-06-2013 , 04:47 PM
nectario's Avatar
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Irradiance Particles and refraction problem.

I'm rendering a scene with a wine glass and a square glass in a room. I'm using Irradiance Particles + FG + Importons in Maya 2014. Why am I getting this dark area at the base of the wine glass and also the glass? See image attached. I have tried everything to fix this but nothing works. If I use FG + GI this problem goes away, but I really like the look with Irradiance Particles and would prefer to render with that. The material is a mia_material_x and using the "thick glass" preset. Please help!

Cheers,

-N

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# 2 03-06-2013 , 08:25 AM
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There is a free tutorial on this site called "Glass Jug with NURBS and Dielectric Material" that covers modeling and rendering a glass jug. The instructor (Jay) applies a dielectric material to the jug and goes through tweaking the settings to get rid of the dark parts. I would be having a look at the second part of that.

# 3 03-06-2013 , 02:22 PM
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Re: Irradiance Particles and refraction problem.

Thank you. But I really need this fix for mia_material_x and Irradiance particles. I believe I have taken care of the obvious reasons why dark spots would occur (i.e. setting trace depth etc. etc.) This seems to be an IP problem specifically.

# 4 03-06-2013 , 09:34 PM
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I'm still using 2013 so I haven't gotten to mess around with the changes they made to irradiance particles, but I recall this was an issue previously with no work around. Sooo...you might be out of luck on this.


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# 5 03-06-2013 , 10:13 PM
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Thank you. I'm affraid you are right. Oh well, I'll have to switch to FG + GI. :-/

# 6 04-06-2013 , 11:56 AM
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IP does not like going through geo even if it's transparent. I've also never found a work around.

Shame it still seems to be an issue with 2014 user added image


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