public static Plane FromPointNormal(Vec3 pt, Vec3 normal)
{
Plane plane = new Plane();
plane.normal = normal;
plane.dist = Vec3.Dot(normal, pt);
return plane;
}
public static Plane FromPoints(Vec3 p1, Vec3 p2, Vec3 p3)
{
Plane plane = new Plane();
Vec3 vec = p2 - p1;
Vec3 vec2 = p2 - p3;
Vec3 vec3 = Vec3.Cross(vec, vec2);
vec3.Normalize();
plane.normal = vec3;
plane.dist = Vec3.Dot(vec3, p1);
return plane;
}
