This function takes
the current texture as an environment map and shows it as Reflection
at the selected heightmap.
This heightmap is either given
by the Source Texture,
like seen in Image 2, or by the Mask,
which displays Image 3.
Increase the Pre-Smoothing value to get smoother
The height of the heightmap can
be regulated with the Amplify value. Parallel to this
value, the strength of distortion increases.
The environment map is projected
onto a sphere. With the Tiling values you can control the
repetition of the texture on this sphere.