MalcolmTyrrell
commented
3 years ago Hi.
There's no way to get the triangle index from the result of a raycast. The SubPartID can be used to identify which portion of the mesh at an entity was hit by identifying the material. See:
- C++: https://docs.microsoft.com/cpp/api/remote-rendering/raycasthit#subpartid
- C#: https://docs.microsoft.com/dotnet/api/microsoft.azure.remoterendering.raycasthit.subpartid
The triangulation of meshes during conversion means that we do not guarantee a 1-1 mapping between faces in the source asset and at runtime. Additionally, no API is exposed for manipulating meshes at a per-triangle level, so knowing a particular triangle index would have little benefit.
Hi folks. I am trying to obtain the triangle index of a raycast hit on a remotely rendered model. Is this possible?
From what I understand, the
SubPartIdfield from a RayCastHit is not the triangle index. Couldn't find anything else about this.