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Author Topic: How to invert a face?  (Read 6157 times)

JunkerKun

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How to invert a face?
« on: December 10, 2013, 11:49:29 am »
Well, the name of the topic says it all. Is there a way to invert a face? Not just a normal, but a whole face.
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Raxx

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Re: How to invert a face?
« Reply #1 on: December 10, 2013, 12:04:11 pm »
Inverting a normal is the same as inverting a face. Normals represent the direction of a face.
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JunkerKun

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Re: How to invert a face?
« Reply #2 on: December 10, 2013, 01:13:00 pm »
Weren't they for lighting calculation?
I just want to make a cartoon outline to be used in a game.
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Raxx

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Re: How to invert a face?
« Reply #3 on: December 10, 2013, 01:35:16 pm »
Generally vertex normals are used to indicate lighting, yes. Rest assured, flipping normals is the same as flipping a face.

For the toon outline effect you can flip the normals of the outer mesh or just create a 2-sided material for the outer mesh and have the front material transparent.
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JunkerKun

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Re: How to invert a face?
« Reply #4 on: December 10, 2013, 01:41:45 pm »
Quote from: Raxx on December 10, 2013, 01:35:16 pm
Generally vertex normals are used to indicate lighting, yes. Rest assured, flipping normals is the same as flipping a face.

For the toon outline effect you can flip the normals of the outer mesh or just create a 2-sided material for the outer mesh and have the front material transparent.
Oh. Okay, thanks!
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