LTX-2 bugfixes, distilled mode, and formatting#12
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TroyHernandez wants to merge 2 commits intomainfrom
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LTX-2 bugfixes, distilled mode, and formatting#12TroyHernandez wants to merge 2 commits intomainfrom
TroyHernandez wants to merge 2 commits intomainfrom
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- Fix DiT timestep scaling for distilled models - Fix Gemma3 hidden state stacking (include embedding layer) - Add distilled mode support to txt2vid_ltx2 (fewer steps, no CFG) - Add model_dir parameter for simplified model path configuration - Update gpu_poor offloading strings for consistency - Regenerate man pages - Update test assertions for new defaults - Code formatting with rformat
Stage 1 denoises at half resolution (8 steps), LatentUpsampler 2x upscales latents, then Stage 2 refines at full resolution (3 steps). Matches Wan2GP's distilled pipeline for higher quality output. New files: - R/upsampler_ltx2.R: LatentUpsampler module (Conv3d ResBlocks + SpatialRationalResampler with PixelShuffle) - inst/tinytest/test_upsampler_ltx2.R: Unit tests - ref/: pyrotechnics reference translations from Wan2GP Modified: - R/txt2vid_ltx2.R: Two-stage loop, extracted .denoise_loop() helper - R/gpu_poor.R: Added upsampler_device to all LTX-2 profiles - CLAUDE.md: Two-stage pipeline learnings
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Summary
txt2vid_ltx2()(fewer steps, no CFG)model_dirparameter for simplified model path configurationTest plan
tinytest::test_package("diffuseR")passestxt2vid_ltx2()generates video with distilled model