Hello RUNE - DO any of your workflows have the nodes to load the new HDR LORA?

#122
by Liquidmind111 - opened

This one
https://huggingface.co/Lightricks/LTX-2.3-22b-IC-LoRA-HDR

It says i need a special LORA LOADER and someething else:

Actually, you can use the HDR LoRA for Image-to-Video (I2V) generations!The official documentation and recent community workflows confirm that this LoRA supports Text-to-Video, Image-to-Video, and Video-to-Video (SDR to HDR conversion).

How to use it for Image-to-VideoTo make it work, you just have to use the correct IC-LoRA setup rather than a standard loader:

Load your Image: Use a standard "Load Image" node for your starting frame.

The "Guide" Node: In an IC-LoRA workflow, you often need to provide a reference signal.

For I2V, your starting image acts as that initial frame, but you must use the LTXAddVideoICLoRAGuide node to properly signal the model to follow that image while applying the HDR effect.

LogC3 Transform: Since this LoRA outputs 16-bit HDR data, you must include the LogC3 transform nodes. Without them, your final video will look extremely dark or washed out because standard video players can't read the raw 16-bit data correctly.

Key Benefits for I2VUsing the HDR LoRA for Image-to-Video gives you much better highlight recovery and color depth than the base model.

VFX Ready: It outputs EXR files, which are the industry standard for professional compositing in tools like Nuke or DaVinci Resolve.

Lighting Accuracy: It captures a wider range of intensities, making light reflections and shadows in your generated video look much more realistic compared to standard 8-bit SDR.

Yes i can upload a workflow for that, with Kijai's preview HDR node.

Will do ;-)

Uploaded workflow here:
https://huggingface.co/RuneXX/LTX-2.3-Workflows/tree/main/Video-2-Video

I think it works.. it output videos, but if you want images, simply connect a preview image node at the very end.
The workflow also includes a new HDR player from KJNodes, so you need updated version of this node pack

(havent tested the output externally at other programs, but saw online that people say the LTX hdr does a good job)

Ah, re-reading your post it sounded like you might be interested in image 2 image.
Will make a variant for that too ;-)

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