Collision Detection Using MeshGeometry3D

Question

I am creating a CAD program by creating modelvisual3D objects. How to do collision detection between my objects (modelvisual3d) using MeshGeometry3D. Is it necessary to compare each triangle in a moving object with fixed objects?

What would be the best way to detect a collision?

Answer 1

It depends on how accurate your collision detection should be.

There is no built-in collision detection in the WPF 3D library. If you need high accuracy, you need to compare each triangle.

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Answer 2

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Answer 3

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Answer 4

Another option would be to use BulletSharp , the C # wrapper of the famous "Bullet Mechanism" . In this case, you will need to write functions to create a (concave) collision form from MeshGeometry3D.

In my experience, it works very well, although dynamic collision between concave shapes is not supported. As a workaround, you need to use convex decomposition.