For title-specific lighting presets ([video] post_shader):
- `input <sampler> depth`: view depth sz (GTE screen z) of the presented frame,
R32F at window size, rebuilt from the surfaces' PGXP depth; 0 where nothing
3D drew. Only built while a loaded chain reads it.
- `input <sampler> history`: the pass's own target from the last real frame
(trails, temporal filters); generated frames do not update it.
- `u_time` (seconds since the chain loaded) and `u_proj` (latest GTE
projection: 240/H, screen centre in uv, aspect) in every pass.
- Live uniforms: psx_host_set_post_uniform(name, x, y, z, w) sets a preset
`uniform` from game state (e.g. a light source projected to the screen);
the preset value applies until the first call.
- Debug: TCP {"cmd":"post_shader"} reports the loaded preset, its parse status
and the live values; {"cmd":"post_shader","path":"..."} reloads a preset
(or loads another) without restarting, for shader work.
docs/POST_EFFECTS.md documents the inputs and the uniforms.
Used by a lighting preset for R4 (sun and tunnel light shafts, lamp halos,
speed streaks, paint reflections on the player's car from live car pose),
about 0.7 ms of GPU at 1080p on an RTX 3060.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Rkyma8rbyPiccs9n2bkyG6
Live resolution (#737) routes mh_restart_bits through main.cpp's
backend-aware video_restart_bits; the fixture extracts mh_restart_bits
alone, so it no longer compiled. Map it to the fixture's
psx_host_video_restart_bits (no live resolution here).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Keep the requested internal resolution / supersample (shown and saved)
apart from what the backend last applied. When the live change is
unavailable (no GL, windowed high-resolution mode, CPU-authoritative dual
rendering, no context) or refused, the session scale is left as applied and
PSX_VIDEO_RESTART_RESOLUTION stays set, in both psx_video_apply_live and
the menu's restart bits (psx_host_video_restart_bits_backend, unit-tested
for the capable and refused cases). video_set rejects invalid presets and
factors without applying or saving, and reports applied values, capability
and pending restart. TCP command index regenerated.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Narrow host_driver_vsync_unreliable() on Windows to the configuration the
stall was measured on: GL active, render thread running, GL_VENDOR NVIDIA,
not exclusive fullscreen. Other driver families and the unthreaded path
keep driver vsync; PSX_TRUST_DRIVER_VSYNC=1 still forces it everywhere.
Evaluated per call, so runtime renderer/fullscreen changes apply.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
psx_video_current reported the live scale as the legacy supersampling
factor, so a second live change looked like a legacy edit and asked for
a relaunch. Report the boot value. Debug-tools builds gain video_set
(internal_resolution, supersample) to drive the live path in tests.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Changing the internal resolution in the in-game menu did nothing until a
relaunch: ovl_video_from() never copied it, and the restart bits forced
a relaunch for it anyway. Supersampling (the [video] supersample
multiplier) had no player setting at all.
- PsxHostVideoSettings gains supersample_milli; internal resolution and
supersample are live changes (PSX_VIDEO_LIVE_RESOLUTION). Only the
legacy integer supersampling factor still needs a relaunch.
- psx_video_apply_live resolves the new scale and calls
gl_renderer_set_internal_scale_live(): it moves the step ceiling
(clamped like the boot scale) and queues the step through the dynamic
resolution machinery, recorded in stream order with the render thread.
The dynamic-resolution controller is retargeted to the new ceiling.
- settings.toml [video] supersample is the player's pick (1.0..4.0).
- The in-game menu round-trips internal_resolution and, with a launcher
that has RECOMP_LAUNCHER_HAS_SUPERSAMPLE, supersample_milli.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Matthew Stanley