public static Geometry <EntityVertex> Arrow()
{
return(Circular <EntityVertex> .Circle(10f, 10f.Radians())
.Stretch(new Mat4[] { Mat.Scaling <Mat4> (0.01f, 0.01f) * Mat.Translation <Mat4> (0f, 0f, -30f) }, false, false)
.Smoothen(0.9f)
.Center());
}
public static Geometry <EntityVertex> Tube()
{
return(Circular <EntityVertex> .Circle(10f)
.Stretch(TubeTransforms(), true, true)
.Smoothen(0.9f)
.Center());
}