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add new ltx

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Signed-off-by: Vladimir Mandic <mandic00@live.com>
This commit is contained in:
Vladimir Mandic
2025-04-18 08:32:41 -04:00
parent 8d6c7510c2
commit 75756ac6ea
3 changed files with 28 additions and 2 deletions
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CHANGELOG.md
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@@ -1,11 +1,13 @@
# Change Log for SD.Next
## Update for 2025-04-17
## Update for 2025-04-18
- **Features**
- [Nunchaku](https://github.com/mit-han-lab/nunchaku) inference engine with custom **SVDQuant** 4-bit execution
highly experimental and with limited support, but when it works, its magic: **Flux.1 at 6.0 it/s** *(not sec/it)*!
see [Nunchaku Wiki](https://github.com/vladmandic/sdnext/wiki/Nunchaku) for installation guide and list of supported models & features
- [LTXVideo 0.9.6](https://github.com/Lightricks/LTX-Video?tab=readme-ov-file) T2V and I2V
in both standard and distilled variants
- [CFG-Zero](https://github.com/WeichenFan/CFG-Zero-star) new guidance method optimized for flow-matching models
implemented for **FLUX.1, HiDream-I1, SD3.x, CogView4, HunyuanVideo, WanAI**
enable and configure in *settings -> pipeline modifiers -> cfg zero*
modules/sd_samplers_diffusers.py
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@@ -268,7 +268,7 @@ class DiffusionSampler:
if 'shift' in self.config:
self.config['shift'] = shared.opts.schedulers_shift if shared.opts.schedulers_shift > 0 else 3
if 'use_dynamic_shifting' in self.config:
self.config['use_dynamic_shifting'] = True if shared.opts.schedulers_shift <= 0 else shared.opts.schedulers_dynamic_shift
self.config['use_dynamic_shifting'] = True if shared.opts.schedulers_shift == 0 else shared.opts.schedulers_dynamic_shift
if 'use_beta_sigmas' in self.config and 'sigma_schedule' in self.config:
self.config['use_beta_sigmas'] = 'StableDiffusion3' in model.__class__.__name__
if 'rescale_betas_zero_snr' in self.config:
modules/video_models/models_def.py
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@@ -71,6 +71,30 @@ models = {
],
'LTX Video': [
Model(name='None'),
Model(name='LTXVideo 0.9.6 2B T2V',
url='https://huggingface.co/Lightricks/LTX-Video',
repo='Lightricks/LTX-Video',
repo_cls=diffusers.LTXConditionPipeline,
te_cls=transformers.T5EncoderModel,
dit_cls=diffusers.LTXVideoTransformer3DModel),
Model(name='LTXVideo 0.9.6 2B I2V',
url='https://huggingface.co/Lightricks/LTX-Video',
repo='Lightricks/LTX-Video',
repo_cls=diffusers.LTXConditionPipeline,
te_cls=transformers.T5EncoderModel,
dit_cls=diffusers.LTXVideoTransformer3DModel),
Model(name='LTXVideo 0.9.6 2B T2V Distilled',
url='https://huggingface.co/Lightricks/LTX-Video-2B-0.9.6-Distilled-04-25',
repo='Lightricks/LTX-Video-2B-0.9.6-Distilled-04-25',
repo_cls=diffusers.LTXConditionPipeline,
te_cls=transformers.T5EncoderModel,
dit_cls=diffusers.LTXVideoTransformer3DModel),
Model(name='LTXVideo 0.9.6 2B I2V Distilled',
url='https://huggingface.co/Lightricks/LTX-Video-2B-0.9.6-Distilled-04-25',
repo='Lightricks/LTX-Video-2B-0.9.6-Distilled-04-25',
repo_cls=diffusers.LTXConditionPipeline,
te_cls=transformers.T5EncoderModel,
dit_cls=diffusers.LTXVideoTransformer3DModel),
Model(name='LTXVideo 0.9.5 T2V', # https://github.com/huggingface/diffusers/pull/10968
url='https://huggingface.co/Lightricks/LTX-Video-0.9.5',
repo='Lightricks/LTX-Video-0.9.5',