public Vector3?DebugMeshAtCursor(Ray ray)
{
// if (cam == null) {
// cam = Camera.current;
// if (cam == null) {
// return null;
// }
// }
RaycastHit hit;
if (!Physics.Raycast(ray, out hit, 10000))
{
return(null);
}
MeshCollider meshCollider = hit.collider as MeshCollider;
if (meshCollider == null || meshCollider.sharedMesh == null)
{
return(null);
}
Mesh mesh = meshCollider.sharedMesh;
Vector3[] vertices = mesh.vertices;
int[] triangles = mesh.triangles;
var i0 = hit.triangleIndex * 3 + 0;
Vector3 p0 = vertices [triangles [i0]];
Vector3 p1 = vertices [triangles [i0 + 1]];
Vector3 p2 = vertices [triangles [i0 + 2]];
Transform hitTransform = hit.collider.transform;
p0 = hitTransform.TransformPoint(p0);
p1 = hitTransform.TransformPoint(p1);
p2 = hitTransform.TransformPoint(p2);
Debug.DrawLine(p0, p1, color);
Debug.DrawLine(p1, p2, color);
Debug.DrawLine(p2, p0, color);
// i0 is the first vertex of the triangle that was hit
meshCollider.SendMessage("OnMeshDebug", i0, SendMessageOptions.DontRequireReceiver);
return(hit.point);
}
