Jack-o'-Lantern: Light Through Carved Walls (3D shell)

A full 3D carved pumpkin shell whose glow is computed per-fragment from a live thickness texture: turn on carve mode and drag directly on the surface to remove flesh, and a custom shader recomputes transmitted candlelight from the real Beer-Lambert exponential law at every point, blending a sharp direct term with a Gaussian-blurred scattering term that reproduces how translucent flesh spreads light sideways before it exits. Unlike the 2D cross-section, thickness here varies across the full curved surface rather than only around one circumferential slice, and scattering is modelled as a genuine spatial blur of the thickness field rather than a post-hoc softening of the rendered brightness.