Measured on the shipped void and the Aetheria wells at warp 60: affine warp
spans, simplex cells and lattice points per span, exact-against-march cost and
error per octave, high-octave variance, clamp crossings and transmittance
error; plus Aetheria's triangle noise. Verdict: exact integration does not
beat sampling for optical depth on either field.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
