Target image
Detail needs sites: the transport map can only resolve features larger than one site cell, so a pattern with n lines across needs roughly (2n)² sites. 5000 sites / mesh 128 matches the desktop pipeline (≈8–12 min in the browser); 1000 sites / mesh 64 finishes in a minute but only reproduces coarse shapes.
Result
Lens relief height map (bright = thicker). Flat entry face on top, relief underneath; light enters the flat face.
| No lens generated yet. |