Three port-only knobs, each defaulting to byte-identical behaviour:
- Video.FovScale (D211): multiplicative half-angle scale on every perspective
projection matrix as it is loaded (gfx_apply_fov_scale, gfx_pc.cpp). Columns
0+1 scaled together so H/V FOV widen uniformly and aspect is preserved; ortho
(HUD/menu) matrices untouched. Composes with the game's per-frame aim-zoom
rewrites for free. Percent of vertical FOV, 50-150, default 100 => guarded
early-return (zero FP ops, golden dumps byte-identical). WIDESCREEN-FOV-PLAN
Phase 4, landed standalone.
- Video.Anisotropy (D212): expose fast3d's already-implemented GL anisotropy
hook as config (1-16). New gfx_set_anisotropy_level() extern-C wrapper clamps
to the GL max. Default 4 = the value fast3d already hardcoded => no delta.
- Video.DisplayFPS (D213): PD-parity top-right FPS readout, sampled once per
emitted frame (optionsoverlay.c fpsTick). Config-only; default 0 => emit
still returns NULL with the panel closed.
F10 overlay gains 'Anisotropic' and 'FOV scale %' rows (DisplayFPS is file-only
- the panel is at its 13-row layout limit, matching PD).
Build clean (ntsc-final); bunker1 framediff worst_cell 12.219 vs 12.221
baseline = render noise, no-op confirmed. Interactive eyeballs owed (see
docs/HANDOFF.md M-83).
findings.md: D211-D213 rows + index regen. WIDESCREEN-FOV-PLAN Phase 4 and
QOL-INVENTORY rows marked done.
All referenced from HANDOFF.md / GRAPHICS-BACKLOG.md but untracked:
- D172-PARTICLE-COLOR-RESEARCH.md: magenta/cyan blood root-cause candidate
(unhandled GBI opcode 0xB9 in ROM particle records + D146 guard)
- D176a-SKY-NOTES.md: RDPHALF sky-tri wire format decoded; Path B draft state
- VIEWMODEL-RESEARCH.md: 1P weapon model static audit, three ranked suspects
- QOL-INVENTORY.md / WIDESCREEN-FOV-PLAN.md / UNLOCKED-FPS-PLAN.md: parked
Phase-4 proposals
James Dansereau