/// <summary>
/// Performs the inverse of the projection done by <see cref="Sample"/>
/// </summary>
/// <param name="point">A point on the surface of this mesh</param>
/// <returns>The primary sample space point that would have been projected there</returns>
public Vector2 SampleInverse(SurfacePoint point)
{
var local = SampleWarp.FromUniformTriangle(point.BarycentricCoords);
float x = triangleDistribution.SampleInverse((int)point.PrimId, local.X);
return(new(x, local.Y));
}
public void Inverse_ShouldBeZero()
{
var bary = SampleWarp.ToUniformTriangle(new(0.1f, 0.1f));
var prim = SampleWarp.FromUniformTriangle(bary);
Assert.Equal(0.1f, prim.X, 4);
Assert.Equal(0.1f, prim.Y, 4);
}
