about SCS(Scene Change System)

This system utilizes the Wan2.2 I2V workflow in conjunction with Scene Change LoRA and T2V LoRA, enabling a seamless transition to the T2V LoRA scene while preserving the person from the input image.

Scene transitions using this system offer exceptional character consistency. You no longer need to train a character LoRA every time; a single portrait image is all it takes.

Files required for SCS and their roles

1. Scene Change LoRA(scene_change_nsfw_v2.0_high_noise.safetensors)

This LoRA serves to seamlessly guide the input image into a T2V scene. It does not use Low Noise.

2. Target T2V LoRA

This is a T2V LoRA designed for the target scene. The "High Noise" setting strongly anchors the scene, while the "Low Noise" setting provides the foundation for rendering the genitals. I recommend using the official T2V created by MQ Lab.

3. DR34ML4Y_I2V_14B_LOW_v2

This renders genitals. High Noise is not used.

https://civitai.red/models/1811313/dr34ml4y-all-in-one-nsfw-wanltx2?modelVersionId=2553271

Strength setting

From the perspective of character consistency, the lowest strength at which each LoRA can effectively fulfill its role is preferable.

scene_change_nsfw_v2.0_high.safetensors 0.70

target_t2v_high.safetensors 0.70

target_t2v_low.safetensors 0.60

DR34ML4Y_I2V_14B_LOW_V2.safetensors 1.00

Prompting

Please refer to the page for each T2V LoRA.

Input image

I recommend square-resolution, portrait images.

Others

Using the 4-step LoRA and generating with "High Noise 4-step" and "Low Noise 4-step" yields the highest quality.

You can get the latest development updates from my Discord server.

https://discord.gg/hs4kDREXa6

I am asking for donations from those who wish to support my work on Fanvue. Please consider supporting me so that I can continue creating.

https://www.fanvue.com/mq-lab

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