12.6 MB4GB+ VRAMlora

ltx-2.3-22b-ic-lora-hdr-scene-emb.safetensors

IC-LoRA HDR Scene Embeddings

Companion scene-embeddings file for the HDR IC-LoRA. Place in models/loras/.

Download ltx-2.3-22b-ic-lora-hdr-scene-emb.safetensors

Direct HuggingFace download. 12.6 MB · Free.

Install path: ComfyUI/models/loras/ + ltx-2.3-22b-ic-lora-hdr-scene-emb.safetensors

No 4GB GPU? Try ltx-2.3-22b-ic-lora-hdr-scene-emb.safetensors online — free generation included

Skip the 12.6 MB download and ComfyUI setup. Generate a 6-second video using this exact model in your browser, ~30 seconds.

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Will this run on my GPU?

Minimum: 4GB VRAM.

GPUVRAMVerdict
RTX 3060 12GB12GBComfortable
RTX 4060 Ti / 4070 (16GB)16GBComfortable
RTX 4070 Ti SUPER / 4080 (16GB)16GBComfortable
RTX 3090 (24GB)24GBComfortable
RTX 4090 (24GB)24GBComfortable
RTX 5090 / A6000 (32GB+)32GBComfortable

Recommendation: Required when using the HDR IC-LoRA.

How to use ltx-2.3-22b-ic-lora-hdr-scene-emb.safetensors

  1. Download the file from HuggingFace.
  2. Place it in ComfyUI/models/loras/ inside your ComfyUI directory.
  3. Restart ComfyUI (or refresh the model list from the menu).
  4. Load a compatible workflow — see below.

Don't want to run this locally? Try ltx-2.3-22b-ic-lora-hdr-scene-emb.safetensors online with a free generation — no GPU, no install, ~30 seconds per clip.

Common issues

ComfyUI doesn't see the file after I downloaded it

Make sure the file is in ComfyUI/models/loras/ (not a subfolder). Restart ComfyUI fully — the menu refresh sometimes misses new files. Filename must match exactly: ltx-2.3-22b-ic-lora-hdr-scene-emb.safetensors.

CUDA out of memory error when loading the model

ltx-2.3-22b-ic-lora-hdr-scene-emb.safetensors needs ~4GB VRAM minimum. If you're hitting OOM: • Enable Sequential Offloading in ComfyUI settings • Lower the resolution (768×512 instead of 1280×704) — both dimensions must be divisible by 32 • Reduce frame count (65 frames instead of 161) — must be 8n+1 • Use a smaller variant — see Related models below.

How do I apply this LoRA in ComfyUI?

Load it in a 'LoraLoader' node and connect it after your model loader. Pair this LoRA with the dev base model (not the distilled one) for the right behavior. LoRA strength 1.0 is the trained value — start there.

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