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HoH
03-30-2007, 08:29 AM
Hi everyone.

Can anybody help me?
I have a problem with glass shadow. I was using vray and I don`t
know how get rid of unnatural shadow under the glass.

I can attached the scene if you need it.

thanks
uros
tecsun
03-31-2007, 06:50 AM
do you turn on "Affect Shadow" in your material?
HoH
03-31-2007, 11:49 AM
Yes I did but is`t not the problem in this. I think the
problem is in model or lights.

Perhaps the scene will help.
tecsun
03-31-2007, 05:34 PM
The problem is you used Light Cache for both engine in Indirect Illumination. Change the first GI engine to Irradiance map then everything will be fine.

Here I attached the file for you:
HoH
03-31-2007, 10:30 PM
It`s working!

Thank you very much for your help tecsun :)
jjslimslim
07-04-2007, 04:33 AM
could someone explain WHY the irradiance map solved the problem? I think its better to learn why then just what button to click.


Thanks
tecsun
07-05-2007, 10:23 AM
it is because irradiance maps render more details than the light cache does. So switching the first bounce engine to irradiance map will render a better shadow.

same thing apply to vray light material. if the render is very blotchy near the light material, higher irradiance map settings will solve the problem.
jjslimslim
07-05-2007, 04:47 PM
Thank you for that explanation
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