public static SurfaceTypes ComputeSurfaceType(JVector[] triangle, WindingTypes winding)
{
var p0 = triangle[0];
var p1 = triangle[1];
var p2 = triangle[2];
return(ComputeSurfaceType(Utilities.ComputeNormal(p0, p1, p2, winding).ToVec3(), out _));
}
public static JVector ComputeNormal(JVector p0, JVector p1, JVector p2, WindingTypes winding,
bool shouldNormalize = true)
{
var v0 = JVector.Subtract(p1, p0);
var v1 = JVector.Subtract(p2, p0);
// This calculation is the same as the one used in a constructor below, but due to using JVector vs. vec3,
// it's easier to just duplicate the code.
var v = JVector.Cross(v0, v1) * (winding == WindingTypes.Clockwise ? 1 : -1);
return(shouldNormalize ? JVector.Normalize(v) : v);
}
public static vec3 Normal(vec3 p0, vec3 p1, vec3 p2, WindingTypes winding, bool shouldNormalize = true)
{
var v = Cross(p1 - p0, p2 - p0) * (winding == WindingTypes.Clockwise ? 1 : -1);
return(shouldNormalize ? Normalize(v) : v);
}
public static vec3 Normal(vec3[] triangle, WindingTypes winding, bool shouldNormalize = true)
{
return(Normal(triangle[0], triangle[1], triangle[2], winding, shouldNormalize));
}
public SurfaceTriangle(vec3 p0, vec3 p1, vec3 p2, WindingTypes winding, int material,
bool shouldComputeFlatNormal = false) :
this(p0, p1, p2, Utilities.ComputeNormal(p0, p1, p2, winding), material, null, shouldComputeFlatNormal)
{
}
