Files & export
Project files
Rusting saves projects as .rusting files. The format is versioned and validated on load, so newer versions of Rusting can tell which format a file uses.
Undo and redo
Every edit can be undone and redone, up to 500 steps.
Export
The File menu has four exports. Each one lets you set the scale and shows the output size in pixels. Exports run in the background with a progress bar and a Cancel button.
| Export | Formats | What you get |
|---|---|---|
| Frame | PNG / JPG | The current frame as a single image |
| Image sequence | PNG / JPG | One image per frame, for compositing or other tools |
| Video | MP4 / MOV (H.264) | A video file you can share or upload directly |
| Sprite sheet | PNG / JPG | All frames in one image, one row per frame tag |
Frame and image sequence
PNG can have a transparent background. JPG has a quality slider. Image sequences cover a frame range you choose, and the files are numbered by frame, for example name_0001.png.
Video New in 0.1.5
An H.264 video at the document's frame rate. Pick MP4 or QuickTime MOV in the export dialog. Video has no transparency: frames are drawn on the document background.
Sprite sheet New in 0.1.5
File → Export Sprite Sheet… writes every frame into one PNG or JPG image.
- Each frame tag becomes one row, with its frames left to right.
- The sheet is as wide as the longest tag. Cells after a shorter row stay transparent.
- With no tags, the chosen frame range goes on one row.
The whole sheet is built in memory, so a sheet of hundreds of 4K frames can need several gigabytes. Lower the scale for large sheets.