Wave over the steps
Works, from LTX 2.5 Creative Lab LoRAs, tested locally


- LoRA
- Water Simulation at 1.3
- Output
- 1152×640, 121 frames at 24fps
- Sampling
- 8 steps, euler_ancestral
- Seed
- 42
- Generated in
- 10 min
- Peak VRAM
- 11.2 GiB
- Ran on
- RTX 3060, 12GB (local)
What was wired in
Spray bursts over the balustrade and a shallow wave washes over the lower steps. The way the water meets the steps looked more natural than I expected.
Reference shows a man in a grey suit and brown leather shoes walking down a wide flight of dry sandstone steps in a sunlit courtyard toward the camera, a stone balustrade on his left and a row of arched windows behind him. Edited shows the same scene with water added. ADD WATER a wave of foaming seawater surging across the courtyard from the left, washing up over the lower steps and crashing around his legs at knee height, spray flying off the balustrade. Subject identity, clothing, framing, and background geometry are identical to the reference; only water-related elements differ between reference and edited.
Notes
At 1152×640 it needed strength 1.3. At 1.0 the water barely showed.
Run it yourself
Download everything for this test (.zip, 0.8 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-water-simulation-0.9.safetensors gated | models/loras | 906.1 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).
