light rays shining through from behind an object?

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# 1 10-03-2005 , 02:44 AM

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Join Date: Dec 2004

Posts: 47

light rays shining through from behind an object?

i'm trying to create a lighting effect of (volumetric) light rays coming through the doorway but whatever i do to the light and object settings, the light fog just keeps going through the object and doesn't give me the effect. How do i block the light with the wall and get the rays to come through only the opening in the wall?

the effect i'm after is a bit like lights rays shining from behind movie title text type thing...

please help!

thanks
lori

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# 2 11-03-2005 , 08:52 PM

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Join Date: Apr 2004

Location: Saskatchewan Canada

Posts: 70

did you try reversing the normals on the geometry?

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# 3 14-03-2005 , 12:58 AM

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Join Date: Dec 2004

Posts: 47

yup tried that. no go...

tried both dmaps and raytrace too... no luck user added image

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# 4 14-03-2005 , 09:00 AM

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Location: London, UK

Posts: 2,800

so you've turned on shadowcasting attributes? That would be my first question.

Maya's volumetrics are notoriously bad and always give very squiffy results. Can you post a scene and I will take a look.

Alan

Technical Director - Framestore

Currently working on: Your Highness

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# 5 15-03-2005 , 07:56 AM

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Join Date: Dec 2004

Posts: 47

hi

here's the file.

thanks!

Lori user added image

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vol light problem.mb (53.4 KB, 412 views)

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# 6 26-03-2005 , 05:18 PM

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Join Date: Oct 2004

Location: In my dreams

Posts: 152

If you haven't resoved the problem yet,...
I recreated the scene from scratch and think I got it working. No idea why it didn't do it in your scene. Maybe you can figure it out compairing with my scene (attached).

Attached Files