---
license: mit
language:
- en
base_model:
- Lightricks/LTX-2.3
pipeline_tag: video-to-video
tags:
- workflow,
- ltx,
- klein,
---


## Introduction

A comfyui workflow based on klein 9b and LTX 2.3 to render a shot based on a clay 3D render.
Shown example work with a car shot render.


![workflow image](readme_image.avif)


## The workflow:
- generate a first frame and blend the car.
- generate a first LTX 2.3 pass with the IC-Lora
- generate a second pass with a injection of the 3d render. It allows to have a more accurate version of the car models.


## Model needed
### Base model
- Klein 9b
- LTX 2.3
### Lora
- [LTX-2.3-3DREAL-LoRA](https://huggingface.co/fal/LTX-2.3-3DREAL-LoRA)
- [Fusion Lora](https://civitai.com/models/2548669/image-blend-fusion-for-flux2-klein-4b-and-9b-edit)
### Comfyui custom node
- KJN nodes
- LTX nodes
- Video Helper Suite
- RES4LYF (Sampler on second pass, not necessary)
- NKD sigma curves (Adjust Sigma on second pass, not necessary)


```
┌────────────────┐  ┌────────────────────┐            ┌────────────┐            ┌──────────┐
│Crypto Car Mask │  │Clayrender + 3D car │            │ Background │            │Foreground│
└──────┬─────────┘  └─┬──────────┬───────┘            └──────┬─────┘            └──────┬───┘
       │              │          │                           │        Klein 9B         │    
       │              │          │                           │                         │    
       │              │          │                           └────  Blend + Fusion  ───┘    
       │              │          │      LTX 2.3                           │                 
       │              │          │                                        │                 
       │              │          └───IC-LORA 3DREAL ──────────────────────┘                 
       │              │                    │                                                
       └──────── Mask Car only ──────────► │                                                
                                           │                                                
                                           │                                                
                                     2nd render pass                                        
                                           │                                                
                                           │                                                
                                                                                            
                                      Final render                                          
```