nx_arousal_render.nx

nx_arousal_render.nx -- the LOOK organ. Emits a PNG of arousal SHIFTING OVER TIME. x = TIME (0..900s, spanning the published 664-743s time-to-peak). y = stacked site bands in real Beer-Lambert colour, then a morphology strip, then the drive track itself. ★TIME-VARYING DRIVE: with a track file the drive is NOT a step input. Real arousal rises, collapses on interruption, and recovers -- that is the whole clinical picture in the dual-control model (SIS1 performance-failure / SIS2 consequence threat suppressing SES excitation). An inhibition event visibly extinguishes the flush and reshapes the morphology, which is the view a sex-therapy user would actually be shown. ★CORRECTNESS: this integrates ONCE forward with a per-step drive lookup. Calling a_perf(t,...) per column re-integrates from zero assuming CONSTANT drive -- correct for a step, WRONG for a track. usage: nx_arousal_render <out.png> <sex0m1f> <drive_permil> <melanin_permil> [propensity] [track] track file = "t_ms drive_permil" lines, ascending; drive is piecewise-constant. license_tier: ORIGINAL expect_exit: 0