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WanVideoImageToVideoEncodeMultiGPU.md

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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.