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CalamitousFelicitousness
5cf46d2f81
Implement the Lightricks two-stage recipe (diffusers PR #13217) for the LTX-2.x Dev family: Stage 1 at half-res with full four-way guidance, 2x latent upsample, Stage 2 with distilled LoRA + scheduler swap + identity guidance on STAGE_2_DISTILLED_SIGMA_VALUES. Extends to both LTX-2.0 and LTX-2.3 Dev via per-family distilled-LoRA repos carried on the caps; Distilled variants take the same flow minus the LoRA swap. Auto-couples Refine with a fixed 2x upsample on any Dev variant with a known LoRA when the user enables Refine without Upsample. - caps: is_ltx_2_3, use_cross_timestep, default_dynamic_shift, stage2_dev_lora_repo, supports_canonical_stage2, modality_default_scale, guidance_rescale_default; LTX-2.x defaults realigned to canonical cfg=3.0 / steps=30; per-variant STG block and four-way guidance wired for non-distilled 2.x - process: canonical Stage 1/Stage 2 helpers, scheduler + opts snapshot under try/finally, per-family upsampler repo, audio latents threaded from Stage 1 into Stage 2, use_cross_timestep gated per caps - overrides: skip the redundant unsharded LTX-2.3 connectors blob and share LTX2TextConnectors weights across 2.3 variants when te_shared_t5 - load: Gemma3 shared-TE path for LTX-2.3; gate use_dynamic_shifting=False override to 0.9.x only so LTX-2.x stays on its canonical token-count dynamic shift