comfyui-multigpu/web/docs/WanVideoImageToVideoEncodeMultiGPU.md

WanVideoImageToVideoEncodeMultiGPU

WanVideoImageToVideoEncodeMultiGPU mirrors WanVideo's image-to-video encoder but ensures the heavy transformer work runs on your selected device while pushing temporary buffers to the configured offload target. Use it to convert reference imagery into Wan latents for I2V workflows.

Inputs

Required

Parameter	Data Type	Description
width	INT	Output latent width (multiple of 8).
height	INT	Output latent height (multiple of 8).
num_frames	INT	Number of frames to encode.
noise_aug_strength	FLOAT	Noise level to add before encoding (helps motion).
start_latent_strength	FLOAT	Multiplier applied at sequence start.
end_latent_strength	FLOAT	Multiplier applied at sequence end.
force_offload	BOOLEAN	Offload Wan model once encoding finishes.

Optional

Parameter	Data Type	Description
vae	WANVAE	VAE pair from Wan VAE loader; defaults to global VAE if omitted.
load_device	MULTIGPUDEVICE	Device to run encoding on.
clip_embeds	WANVIDIMAGE_CLIPEMBEDS	Additional clip guidance tensors.
start_image	IMAGE	First frame reference.
end_image	IMAGE	End frame reference for interpolation.
control_embeds	WANVIDIMAGE_EMBEDS	Control signal tensors (e.g., Fun).
fun_or_fl2v_model	BOOLEAN	Enable special behaviour for FLF2V/Fun models.
temporal_mask	MASK	Mask for temporal control.
extra_latents	LATENT	Additional latents to prepend (e.g., Skyreels refs).
tiled_vae	BOOLEAN	Use tiled VAE encoding to minimise VRAM.
add_cond_latents	ADD_COND_LATENTS	Extra conditional latents for advanced workflows.

Outputs

Output Name	Data Type	Description
image_embeds	WANVIDIMAGE_EMBEDS	Encoded Wan latents for downstream samplers.