From 58791dbd61e33a0d588c7025f0b4631499454fba Mon Sep 17 00:00:00 2001 From: Daniel Maddern Date: Thu, 13 Aug 2026 16:18:33 +0700 Subject: [PATCH] Record seed-exact initialization result --- PARITY.md | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/PARITY.md b/PARITY.md index 72e9cd3..3d743ad 100644 --- a/PARITY.md +++ b/PARITY.md @@ -189,7 +189,7 @@ gate and is exact. | Beta/RES sampler | Yes | H3 replay is bit-exact for all 12 captured sampler calls and RES update is bit-exact from captured denoised; direct raw-output to model-wrapper denoised conversion retains small BF16/state boundary deltas | | Video VAE decoder | Yes | Same final sampled latent decoded through direct VAE versus Comfy PNG frames: mean abs pixel delta `0.0833898`, max `6` | | Audio VAE/decode/mux | No | Preview intentionally produces video only | -| End-to-end prompt-only FL2VA preview | Yes | Direct 320x192x22 dragon smoke video generated with Sage2 at `/home/daniel/StoryStudioAssets/H3-output/h3-blackwell-runtime/direct-fl2va-dragon-e2e-55e2073.mp4`; seed-exact Comfy initial AV state parity is not implemented | +| End-to-end prompt-only FL2VA preview | Yes | Direct 320x192x22 dragon smoke videos generated with Sage2. Comfy-equivalent CPU joint AV seed initialization now matches captured `initial.pt` exactly; seed-exact direct MP4 versus Comfy PNG frames still has mean abs pixel delta `14.0714`, max `193`, consistent with the remaining model-wrapper denoised conversion boundary | | Full Ref2VA | No | References, vision conditioning, VAE encode, audio, and muxing are unimplemented | ## Remaining Gates, In Dependency Order @@ -199,9 +199,10 @@ unless the checkpoint, Comfy version, prompt, or backend changes. 1. **Final video latent layout.** Compare direct `unpatchify_video` output with Comfy before entering the sampler. -2. **Seed-exact prompt-only initialization.** Replace direct preview's local - `torch.manual_seed` video-only noise setup with Comfy-equivalent joint AV - initial latent generation before claiming identical seed output. +2. **Model-wrapper denoised conversion.** Direct H3 and RES update gates pass, + and direct initial AV noise now matches Comfy exactly. Close the remaining + small `h3_output -> denoised` conversion delta before claiming identical + seed output. 3. **Feature/performance work.** Only then add audio, Ref2VA/reference paths, Sage3, CUDA graphs, and multi-GPU execution.