Bring the original EXR sequence.
Upload native 4K or 8K frames through the direct large-file route. Original EXR bytes, frame numbers and colour metadata are retained; the upload does not make an 8-bit video substitute.
Upload and scene analysis are free. Rendering is currently limited to validation accounts and shots up to 720 frames. No render credits are charged. Optional storage extensions require a separate, explicit purchase. An uploaded sequence is not a completed render.
1. Your PixelAPI account
Sign in on your dashboard, or enter your API key here.
2. Select a numbered sequence
or click to select multiple .exr files
Numbered files such as shot.1001.exr, shot.1002.exrNo files selected.
Flat, single-part R/G/B or RGBA EXRs, half or float; additional flat channels are retained. Up to 8192 × 4320 pixels, 2 GiB per frame and 200 GiB per sequence. Deep and multipart EXRs need a separate workflow. No audio is embedded in an EXR sequence.3. Transfer and validation
Each frame is transferred in 16 MiB chunks with safe retries. Reopen this page, reconnect and select the same files to resume. Standard retention is 24 hours from upload-session creation, after which data is deleted. Keep your original local files; this is not archival storage.
4. Storage and automatic deletion
24 hours included. No automatic renewal.
Optional extension: 2 credits per original uploaded GiB per extra day, rounded up to 0.01 credit. Derived outputs are included. Maximum 30 days total from session creation; credits are charged only when you confirm.
Changing the selection requests a new quote. Extending again charges only the additional days. Abandoning an upload does not refund purchased storage; its files remain private until the displayed deletion time.5. Review foreground objects
Every uploaded shot is analysed before selection. Detection is a proposal, not a decision: people in pictures, blurred decorations and partial props can be ambiguous. Explicitly choose keep or remove for every listed item. Correct inaccurate boxes and add missed objects.
Upload a complete sequence to begin analysis.
Only mark an object stationary if its geometry does not move in the image. Its soft matte is computed once from this unobstructed reference and held exactly, while moving subjects remain separately tracked. Do not use this option for a moving camera or moving object: the matte must follow that object's edge, not freeze it in screen space.
Choose an object row, then drag a rectangle on the image to correct its box. Boxes are approximate proposals, not finished mattes. For a missed object, enter its name, click Add object, then draw its box.
6. Native render and downloads
Tracking uses a colour-managed proxy; soft-alpha edges are refined at the original resolution. Downloads include an untouched-RGB plate with alpha, a float-alpha sequence, and a separate scene-linear edge-cleaned foreground. All retain source frame names and image windows. The original plate preserves HDR RGB exactly; the reconstructed foreground estimates edge colours. RGBA is straight/unassociated. The review video composites onto neutral grey in linear light. EXR sequences have no embedded audio.
Confirm foreground choices first.