Wan 2.1 first-to-last frame video

Generate a short, silent video transition between a first image and a last image, guided by a motion prompt. Both images are required. Wan 2.1 VACE conditions the endpoints; it does not guarantee pixel-exact reproduction. Uploaded alpha masks are not used. For a first run, upload endpoint images with matching dimensions and compatible framing, replace the example motion prompt, keep the 512 × 512 output, choose length setting 4 and leave Lightning disabled. Keep batch size 1 and the supplied sampling and encoding defaults. The negative prompt lists unwanted appearance and motion; its supplied Chinese exclusions can be retained or replaced. Choose output width and height as multiples of 16, each at least 16. Other values round down. The source recommends resolutions up to 720p and clips shorter than five seconds. Length is a positive integer setting converted to 16 × setting + 1 generated frames. Setting 4 gives 65 frames, approximately 4.06 seconds at 16 FPS. The preserved default of 5 gives 81 frames, approximately 5.06 seconds. Playback FPS changes speed and duration without generating additional frames. Lightning enables the fixed Lightx2v LoRA and switches to its separate steps and CFG controls: defaults of 6 steps and CFG 1, compared with standard defaults of 20 steps and CFG 6. Lightning LoRA strength applies only in Lightning mode. Frame guidance strength scales endpoint conditioning; CFG controls text guidance. Both modes share seed, sampler, scheduler, denoising amount and sampling shift. Seed -1 randomizes each run; use a fixed seed to compare changes with the same initial noise. Advanced playback and encoding settings include bit depth, file type, codec and CRF. The default uses 8-bit video creation and H.264 encoding with automatic file type. AV1 and other containers are selectable; choose compatible container and codec settings. Ten-bit video requires compatible encoding and playback. The graph has no audio input and this interface returns one video output.

Generate a short, silent video transition between a first image and a last image, guided by a motion prompt. Both images are required. Wan 2.1 VACE conditions the endpoints; it does not guarantee pixel-exact reproduction. Uploaded alpha masks are not used. For a first run, upload endpoint images with matching dimensions and compatible framing, replace the example motion prompt, keep the 512 × 512 output, choose length setting 4 and leave Lightning disabled. Keep batch size 1 and the supplied sampling and encoding defaults. The negative prompt lists unwanted appearance and motion; its supplied Chinese exclusions can be retained or replaced. Choose output width and height as multiples of 16, each at least 16. Other values round down. The source recommends resolutions up to 720p and clips shorter than five seconds. Length is a positive integer setting converted to 16 × setting + 1 generated frames. Setting 4 gives 65 frames, approximately 4.06 seconds at 16 FPS. The preserved default of 5 gives 81 frames, approximately 5.06 seconds. Playback FPS changes speed and duration without generating additional frames. Lightning enables the fixed Lightx2v LoRA and switches to its separate steps and CFG controls: defaults of 6 steps and CFG 1, compared with standard defaults of 20 steps and CFG 6. Lightning LoRA strength applies only in Lightning mode. Frame guidance strength scales endpoint conditioning; CFG controls text guidance. Both modes share seed, sampler, scheduler, denoising amount and sampling shift. Seed -1 randomizes each run; use a fixed seed to compare changes with the same initial noise. Advanced playback and encoding settings include bit depth, file type, codec and CRF. The default uses 8-bit video creation and H.264 encoding with automatic file type. AV1 and other containers are selectable; choose compatible container and codec settings. Ten-bit video requires compatible encoding and playback. The graph has no audio input and this interface returns one video output.