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streaming: speed-aware scheduler with hysteresis (L80); arrival near-first, fast travel keeps the horizon

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Policy 3 (headless + Unreal): walkable ring always first; at rest/arrival LOD0-2 before far;
walking interleaves near:far ~4:1 toward heading; fast travel admits far coarse tiles right after
the walkable ring. Hysteresis: walking 0.75/0.35 m/s, fast 12/8 m/s.
Headless, far holes while moving 30 m/s: L77 9.0% / L79 77.2% / L80 8.9%. Cold LOD0-2 ready
(one clean protocol, medians): SW 1.30, FI 3.61, TN 3.07, VS 1.43 s.
Unreal 30 m/s traces end 2,233/2,237 loaded (commandlet readiness exit 1) for all policies.
Passage zero-padding cut: ~50% fewer passage iterations on active tiles, max 6.6 cm surface
displacement, no sign flips; not adopted yet (padding sweep next). World unchanged (v213).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016dhxM43dnWvUu2B5Ph1iG1
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Fr0zkaandClaude Opus 5.5 committed 2026-10-27 21:39:21 +01:00
1 parent 2c8a26c0d0
commit b06397df9c
10 files changed
+830 -25
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Standalone/Source/StreamBenchmarkHeadless.cpp
+4 -4
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@@ -1414,7 +1414,7 @@ namespace
std::printf("Usage: %s [owner_world.json] --world-assembler-prototype --stream-benchmark --stream-pipeline [options]\n"
" --workers=N --clip-radius=N --max-clip-level=N --max-level=N\n"
" --camera=X,Y,Z,YAW,PITCH (position in metres) --stream-hash\n"
" --stream-scheduler-policy=0|1|2 (L77 coarse, L78 near, L79 fair share)\n"
" --stream-scheduler-policy=0|1|2|3 (L77 coarse, L78 near, L79 fair, L80 speed-aware)\n"
" --moving-camera-speed-mps=N [--moving-camera-duration-s=N] [--moving-camera-dwell-s=N]\n"
" --stream-hash-tiles (print per-tile hashes; implies --stream-hash)\n"
" --stream-hash-tiles-allow-skips (mesh/topology falsifier with proven uniform skips)\n"
@@ -1600,8 +1600,8 @@ namespace
else if(arg.starts_with("--stream-scheduler-policy="))
{
if(!readInt("--stream-scheduler-policy=",options.StreamingSchedulerPolicy)
||options.StreamingSchedulerPolicy<0||options.StreamingSchedulerPolicy>2)
{std::fprintf(stderr,"Invalid --stream-scheduler-policy (expected 0..2).\n");return false;}
||options.StreamingSchedulerPolicy<0||options.StreamingSchedulerPolicy>3)
{std::fprintf(stderr,"Invalid --stream-scheduler-policy (expected 0..3).\n");return false;}
}
else if(arg.starts_with("--moving-camera-speed-mps="))
{
@@ -1676,7 +1676,7 @@ namespace
if(options.MovingCameraTrace&&(!options.StreamPipeline||!options.WorldAssemblerPrototype))
{std::fprintf(stderr,"--moving-camera-speed-mps requires --world-assembler-prototype --stream-pipeline\n");return false;}
if(options.MovingCameraTrace&&options.StreamingSchedulerPolicy<0)
{std::fprintf(stderr,"--moving-camera-speed-mps requires --stream-scheduler-policy=0|1|2\n");return false;}
{std::fprintf(stderr,"--moving-camera-speed-mps requires --stream-scheduler-policy=0|1|2|3\n");return false;}
if(options.LandmarkL45RampControl&&!options.LandmarkChamberDemo)
{std::fprintf(stderr,"--landmark-l45-ramp-control requires --landmark-chamber-demo\n");return false;}
if(options.AuditOreVeinYield&&!options.OreVeinsDemo)