Glass acts weird

Become a member of the CGSociety

Connect, Share, and Learn with our Large Growing CG Art Community. It's Free!

THREAD CLOSED
 
Thread Tools Search this Thread Display Modes
Old 02 February 2013   #1
Glass acts weird

Hi CGTalk,

I use mental ray for rendering and gave all the glass in this building a mia-material with glass preset.
Now when there is only one layer of glass everything is fine. But now that I have a glass box behind another wall of glass, strange things happen.
You would say that this is because of the trace settings, but I have those set high enough.

Someone has any ideas on what to change?

Thanks!


__________________
Ferry Passchier [2D/3D Visualizer + Fan Photographer]
Facebook - Twitter - Instagram
^
Most updates here
 
Old 02 February 2013   #2
Anyone?...
__________________
Ferry Passchier [2D/3D Visualizer + Fan Photographer]
Facebook - Twitter - Instagram
^
Most updates here
 
Old 02 February 2013   #3
Quote:
Originally Posted by FerryP
Hi CGTalk,

I use mental ray for rendering and gave all the glass in this building a mia-material with glass preset.
Now when there is only one layer of glass everything is fine. But now that I have a glass box behind another wall of glass, strange things happen.
You would say that this is because of the trace settings, but I have those set high enough.

Someone has any ideas on what to change?




Thanks!




Sorry but I might have a tired eyes, can you elaborate what you are expecting to be the outcome of your render, your glass seems to be very reflective and if you have large amount of ray tracing you will get a multiple reflection on the interior mirror.
 
Old 02 February 2013   #4
Quote:
Originally Posted by kosingcg
Sorry but I might have a tired eyes, can you elaborate what you are expecting to be the outcome of your render, your glass seems to be very reflective and if you have large amount of ray tracing you will get a multiple reflection on the interior mirror.


The "problem" is that the glass turns white on places where they are overlapping. Multiple reflections aren't the problem, the white areas are.

But I have fixed it...I had to increase both the Raytrace Shadow Attributes from my lightshape AND the Trace Shadow Depth in the render settings.
__________________
Ferry Passchier [2D/3D Visualizer + Fan Photographer]
Facebook - Twitter - Instagram
^
Most updates here
 
Old 02 February 2013   #5
Quote:
Originally Posted by FerryP
The "problem" is that the glass turns white on places where they are overlapping. Multiple reflections aren't the problem, the white areas are.

But I have fixed it...I had to increase both the Raytrace Shadow Attributes from my lightshape AND the Trace Shadow Depth in the render settings.


is it a scaled cube or a plane only?
 
Old 02 February 2013   #6
Thread automatically closed

This thread has been automatically closed as it remained inactive for 12 months. If you wish to continue the discussion, please create a new thread in the appropriate forum.
 
Thread Closed share thread



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
CGSociety
Society of Digital Artists
www.cgsociety.org

Powered by vBulletin
Copyright 2000 - 2006,
Jelsoft Enterprises Ltd.
Minimize Ads
Forum Jump
Miscellaneous

All times are GMT. The time now is 03:53 PM.


Powered by vBulletin
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.