public float raySect(float3 p, float3 dir, ref float3 sect)
{
float4 plane = new float4();
plane.x = mNormal.x;
plane.y = mNormal.y;
plane.z = mNormal.z;
plane.w = mPlaneD;
float3 dest = p + dir * 100000f;
intersect(p, dest, ref sect, plane);
return(sect.Distance(p)); // return the intersection distance
}
public bool Concave(float3 p, ref float distance, ref float3 n)
{
n.NearestPointInTriangle(p, mP1, mP2, mP3);
distance = p.Distance(n);
return(true);
}