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Adopt VTK definition of a triangle's normal. #764

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rupertnash opened this issue Jul 30, 2021 · 0 comments

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rupertnash commented Jul 30, 2021

Given vertices 0, 1, 2:

0
| \
|  \
|   2
|  /
| /
1

VTK says the normal comes out of the screen towards you, while HemeLB and @timmkrueger's code say it goes in.

We should probably adopt the VTK convention as we move towards depending on it more.

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rupertnash self-assigned this

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