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Shadowjonny
Has anyone done something similar to have normal point i guess up outward? red is the direction the normals to go. I tried with a cross function but not the direction i wanted and was not surprised when it got that value.First image is what im trying to go for second is with the cross product.
Enivob
Some of your red lines are 90 degree rotates and others are only 45 degree. The cross function should handle the 90 degree candidates. Perhaps find a way to create two groups based upon desired angle and process each group a little differently?
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