How i can a normal vectors?

Question

I've done Raycast in a normal of my cube.

I get the normal with:

RaycastHit.normal

alt text

My Question: How I can find the vectors of the vertices of the normal??

Thanks!

Answer 1

Best Answer

Answer by loopyllama · Mar 21, 2011 at 04:15 PM

try barycentric coordinates. the example on the link below does exactly what you are looking for-- an interpolated normal based on the triangle you hit.

http://unity3d.com/support/documentation/ScriptReference/RaycastHit-barycentricCoordinate.html

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Answer 2

Answer by flaviusxvii · Mar 21, 2011 at 02:55 PM

I think the terminology is a little confused here. I think you're saying "normal" when you mean "triangle".

http://en.wikipedia.org/wiki/Surface_normal

This is how you get the corner vertexes of the triangle.

http://unity3d.com/support/documentation/ScriptReference/RaycastHit-triangleIndex.html

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Answer 3

Answer by efge · Mar 21, 2011 at 02:19 PM

You could use RaycastHit.triangleIndex.
This function works only if the collider that was hit is a MeshCollider.

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How i can a normal vectors?

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