SwitchX 2.0

SwitchX is a professional video-to-video AI generation tool designed for filmmakers, VFX artists, and creators. Unlike standard video-to-video models that hallucinate or alter the entire frame, SwitchX uses your original footage’s pixels as direct control signals. The core principle of SwitchX is simple: Switch anything, keep what matters. We call it Source-Locked Rendering: your performance stays locked to your source footage, pixel for pixel and frame for frame, while only the light and the world around it change. To get the best results from SwitchX, master two concepts: the Alpha Mask controls what gets changed, and the Reference Image controls how it looks.

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Source Footage

Source quality carries into the output, so feed SwitchX the highest-quality source you have. Native ProRes ingest is supported: upload your ProRes 422 (Proxy, LT, 422, HQ) .mov master directly, up to 4.5GB.

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Alpha Masks

The alpha mask is how Source-Locked Rendering works: it tells SwitchX exactly what to lock to your source and what to generate.

• White in the alpha (1): kept from your original footage, frame for frame, and only relit and restyled to blend into the new environment.
• Black in the alpha (0): completely generated from your prompt and reference images.

SwitchX offers four masking modes:

Auto Mode

The engine automatically detects and isolates the main subject in your first frame, then propagates and tracks that mask throughout the rest of the video. No manual selection is required.

Select Mode

You manually choose exactly which parts of the frame to keep. The objects you select become white in the alpha and stay from your original footage; everything else is black and gets generated. To generate inside a selection instead, use Invert (below). Powered by interactive AI masking tools (SAM3, MatAnyone), choose a frame and click to select specific objects on it. The Alpha Editor lets you fine-tune your selections:

Fill Mode

This mode selects the entire frame. Use Fill when you want to keep the original scene’s geometry and composition intact but alter the overall lighting, mood, or artistic style.

Upload Mode

Upload a precise alpha matte created in software like Nuke or After Effects. SwitchX reads the black-and-white alpha video pixel-by-pixel for absolute precision.

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Camera Tracking

SwitchX 2.0 supports camera tracking natively: the engine tracks the camera motion of your source footage and applies it to the newly generated environment. Control it under Advanced settings:

• On (Follow Source): the default. The generated environment follows your source’s camera motion.
• Off (Ignore Source): the generated environment ignores the source’s camera motion. Use this when you want the new background to stay stable regardless of how the camera moves.

Every environment below is fully generated, yet follows the source camera exactly — all with Camera Tracking On.

Truck (Lateral Tracking)

The camera travels sideways with the subjects — the generated street scrolls past with the source’s speed and parallax.

Pan (Follow)

The camera swings to follow the bike through the corner — the generated night circuit stays locked to the move even at race pace.

Push-in (Dolly)

The camera pushes forward past the foreground shelf — the generated aquarium keeps the same approach and parallax.

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Fast Motion

SwitchX 2.0 holds detail through fast movement — lip sync, dance, gesture — where video models tend to smear or drift off the performance.

Lip Sync

Every syllable lands after the switch from greenscreen to jungle — wardrobe and world change, the mouth doesn’t.

Dance (Full-Body Motion)

Subway-platform floorwork relit from flat fluorescents to amber and signal green — the source movement carries through unchanged.

Gesture (Fast Hands)

A crossover dribble at full speed, switched from a street court to an indoor gym — the ball and both players stay sharp.

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Reference Images

What your alpha covers keeps its pixels from your source, frame for frame. Your reference image and prompt control everything else: how that footage is relit and restyled, and what SwitchX generates around it. The best reference is a finished frame: your subject composited into the new world, relit the way you want. Upload any image, or make one in the app with Create with AI.

Imperfect References Are Fine

Your reference image doesn’t need to perfectly match your source footage. If a face or a detail changes in a generated reference, that’s fine. SwitchX knows what your original pixels are and brings only the lighting and style from the reference, applying it on top of your actual footage.

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Settings & Export

• Resolution: 720p, 1080p, or 2160p. Each tier is a maximum cap on the shortest side, and a smaller source can also be enlarged (those options are tagged Upscale in the picker).
• Length: up to 480 frames (20 seconds at 24fps).
• Export: 8-bit MP4 and 10-bit MOV.
• Aspect ratio and frame rate: always match your source.

Iterate then Finish

Explore faster for less in 720p, pick your favorite, then Finish it in 4K. More than an upscale: Finish re-renders your take from the original source footage, recovering source detail to match a native 4K generation.

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Model Versions