PS1 Scene Validation Log — March 29, 2026

On this page

• Mission
• Key Findings
  • Build State
  • Timing
  • Sweep 1: All 63 scenes without seed (story single via storyPlay)
  • Sweep 2: Structural comparison against Linux reference
  • Sweep 3: Seeded deterministic run (in progress)
• Artifacts
• Commits This Session
• Next Steps

Mission

Validate all 63 PS1 scenes against the canonical Linux reference set.

Key Findings

Build State

• HEAD (7a3d4b49) had uncommitted cross-file dependencies → broken build
• Rolled back to f2c33ca3 (clean micro-optimizations state)
• Added story single boot mode + seed support + storyPlayBootSceneDirect()
• Current working commits: 5b776e5a → 69432ead → d3b36ccc → 8544b664 → 4054755a

Timing

| Phase | Frame | Wall time | |——-|——-|———–| | BIOS animation | 300-600 | 5-10 sec | | Title screen | 1200-2400 | 20-40 sec | | Ocean/walk | 2400-3000 | 40-50 sec | | Scene content | 3000+ | 50+ sec |

REGTEST_FRAMES increased from 1800 to 9000 (150 sec emulated).

Sweep 1: All 63 scenes without seed (story single via storyPlay)

• Result: 63 PASS, 0 FAIL
• Method: island content detection (yellow > 1% in any frame)
• All ADS families produce visible island content

Sweep 2: Structural comparison against Linux reference

• Result: 63/63 MATCH
• Both PS1 and reference have island + palm tree in every scene
• compare.html generated with side-by-side thumbnails

Sweep 3: Seeded deterministic run (in progress)

• Using story single <idx> seed 1 matching reference metadata
• Direct scene path via storyPlayBootSceneDirect() for proper island setup
• 27/63 completed, all PASS so far
• JOHNNY scenes run slowly (~15-25 min per scene due to complex ADS)

Artifacts

• regtest-results/sweep-63/ — unseeded 63-scene captures
• regtest-results/seeded-63/ — seed-1 deterministic captures (in progress)
• regtest-results/comparison-63/compare.html — visual comparison report
• regtest-results/comparison-63/compare.json — structured comparison data
• regtest-results/validated-63/validation.json — validation summary
• regtest-results/reference-classification/classification.json — reference analysis

Commits This Session

| Hash | Description | |——|————-| | 5b776e5a | Restore clean buildable state from f2c33ca3 | | 69432ead | Add story single boot mode | | d3b36ccc | Update timing to 9000 frames | | 8544b664 | 63/63 scenes render with island content | | 3be7e960 | 63/63 match reference (JSON artifacts) | | ff8f0fd1 | Full validation pipeline artifacts | | 08a878da | Reference classification (63/63 island+Johnny) | | 4054755a | Add seed support + direct scene path |

Next Steps

1. Wait for seeded sweep to complete
2. Generate pixel-level comparison between seeded PS1 and reference frames
3. Identify any per-scene rendering differences
4. Fix rendering bugs if found
5. Commit final validation artifacts