Loop ForgeSame park at strength 1.0
Limit, from LTX 2.5 Creative Lab LoRAs, tested locally
- LoRA
- Day-to-Night at 1.0
- Output
- 1152×640, 121 frames at 24fps
- Sampling
- 8 steps, euler_ancestral
- Seed
- 42
- Generated in
- 9 min
- Peak VRAM
- 11.0 GiB
- Ran on
- RTX 3060, 12GB (local)
What was wired in
At 1152×640 the default strength only lights the lamps. The scene stays partly in daylight, with some parts of it day and some night.
A realistic nighttime version of the same park: the fountain, bench, lamp post and trees in the same positions and the jogger following the same path, the lamp post lit with a warm glow, cool moonlight on the gravel and the fountain water catching the light, deep natural shadows under the trees. Only the lighting changes from day to night; identical composition, framing, camera movement and motion.
daytime, bright sunlight, blue sky, overexposed, worst quality, inconsistent motion, blurry, jittery, distorted
Notes
The LoRA was trained at 768×448 with 97 frames. At the larger size used here it needed a strength of 1.3 to 1.5.
Run it yourself
Download everything for this test (.zip, 1.9 MB). It holds the workflow, every input it loads and a README. Copy the inputs into ComfyUI/input, put the models below in place and drag the workflow onto ComfyUI.
| File | Put it in | Size |
|---|---|---|
| ltx-2.5-22b-distilled-transformer-comfy-int8-convrot.safetensors gated | models/diffusion_models | 21.5 GB |
| gemma4-12b-with-proj-ltx-2.5-comfy-int8-convrot.safetensors gated | models/text_encoders | 15.4 GB |
| ltx-2.5-video-vae-bf16.safetensors gated | models/vae | 1.5 GB |
| ltx-2.5-audio-vae-bf16.safetensors gated | models/vae | 364.9 MB |
| ltx-2.5-22b-ic-lora-day-to-night-0.9.safetensors gated | models/loras | 327.3 MB |
The Lightricks repositories (the LTX 2.5 base model and the LoRAs) are gated. Log in to Hugging Face and accept the terms on each repository page before downloading.
Custom nodes: ComfyUI-LTXVideo at commit 3bf3ca6. Everything else is part of ComfyUI 0.37.0 (commit 0f74f7fb, frontend 1.53.6).