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Old 10-03-2005, 02:44 AM   #1
lori_hunter
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Default 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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Old 11-03-2005, 08:52 PM   #2
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did you try reversing the normals on the geometry?
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Old 14-03-2005, 12:58 AM   #3
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yup tried that. no go...

tried both dmaps and raytrace too... no luck
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Old 14-03-2005, 09:00 AM   #4
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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.

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Old 15-03-2005, 07:56 AM   #5
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hi

here's the file.

thanks!

Lori
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File Type: mb vol light problem.mb (53.4 KB, 42 views)
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Old 26-03-2005, 05:18 PM   #6
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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).
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File Type: ma volume_light.ma (68.6 KB, 51 views)
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Old 09-06-2013, 03:04 PM   #7
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Exclamation fog lights

hey lory, i think you totally messed up your depth map shadows. try adjusting some of its attributes and see if it'll work

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