Maya for 3D Printing - Rapid Prototyping
In this course we're going to look at something a little different, creating technically accurate 3D printed parts.
# 1 16-08-2011 , 09:17 AM
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Join Date: Oct 2010
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bumo maps in ao

any ideas on how to render bump maps in ao? I've found this :-

"First make a lambert node and make it white. Then plug the AO node into the ambient colour of the lambert then add your bump map as normal to the lambert and assign it to your mesh"

I've done this, but when I try to assign it to the mesh I get an error: error while parsing arguments

?

# 2 17-08-2011 , 05:45 PM
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Physically it's not really possible. Ambient occlusion is a shader that returns the proximity to other geometry as a color, black->white. Bump mapping doesn't affect the actual geometry, it just distorts the normals to give the effect of displacement.

This is what displacement mapping does. Here's an example, with bump mapping on the left, and displacement on the right. Image

If you're getting the "error while passing arguments" error, try restarting Maya, and try again.


Imagination is more important than knowledge.
# 3 24-08-2011 , 07:56 AM
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Join Date: Oct 2010
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ok thanks. I've learnt a little more about occulsion so I kinda understand why it's not practical.
I saw this picture and assumed it was ao, but looking again now, it doesn't look to be. not from what I've learnt anyway.

thanks

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# 4 24-08-2011 , 05:54 PM
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There are ways of faking it, but it wouldn't be the same. That image was probably done with displacement.


Imagination is more important than knowledge.
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