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JohnJohnson
Posts: 18
Joined: 25 Jun 2009
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 Posted: Thu Jul 02, 2009 3:27 am Post subject: reversed bumps on stacked shells |
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Hi there
What am I doing wrong here? |
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JohnJohnson
Posts: 18
Joined: 25 Jun 2009
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| Posted: Thu Jul 02, 2009 4:36 am Post subject: |
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Never mind ,I've found it.
They have to be mirrored. |
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headus
Site Admin
Posts: 2894
Joined: 24 Mar 2005
Location: Perth, Australia
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| Posted: Thu Jul 02, 2009 5:58 pm Post subject: |
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If the numbers in the applied texture are backwards, that means that the UVs are flipped over, and that can cause problems for things like bump or normal maps.
Its one of the reasons why someone might want to do multiple UVs for the one object, also known as UV sets. The UVs for the color can be stacked, but there's a second set of UVs for the normal map that aren't stacked.
Phil |
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JohnJohnson
Posts: 18
Joined: 25 Jun 2009
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| Posted: Fri Jul 03, 2009 9:18 am Post subject: |
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Thx Phil
It works indeed well for colormaps,where you can stack many shells.
For normal and bumpmapped models this does not work. |
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JohnJohnson
Posts: 18
Joined: 25 Jun 2009
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| Posted: Wed Jul 08, 2009 10:45 am Post subject: |
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Just for the record.
In the end I chose not to stack,but it does work in c4d
check > use uvw for bump and all works fine. |
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