Environment Mesh related utility in MRTK3

[thisisvaze]

Is it possible to get a custom raycast intersection point with the Environment Mesh in MRTK3?

[camnewnham]

I'd suggest the following:

• Ensure that you are creating the environment mesh (you have an ARMeshManager under your ARSessionOrigin)
• Create a meshprefab that is for a custom layer in your ARMeshManager. Ensure this prefab also includes a mesh collider.
• Use Physics.Raycast with a mask for your specific layer