Bounce & Fill video maker
A ball bounces inside a circular arena. Every wall hit grows a bump of material on the wall and shrinks the ball until the arena is a seamless filled disc. Twelve procedural materials, geode and melt modes, up to four balls.
What you can customize
- Mode: Fill, Geode crack, Ice melt
- Material: Brick wall, Seeds, Lightning, Orange slice, Yarn ball, Geode, Ice cube, Honeycomb, Lava, Candy, Moss, Circuit
- Balls: 1–4
- Caption
- Accent 1–2
- Ball style: Skin default, Glow disc, Glossy orb, Gem, Ice cube, Orange slice, Spark corona, Seed spiral, Yarn ball, Cute face
- Ball colour: Skin native, Custom (from Balls), Rainbow per bounce
- Wall palette: Material native, Rainbow, Sunset, Ocean, Candy, Monochrome
- Hue drift over the fill (degrees): 0–360
- Arena outline: Material colour, Accent 1, White, Ball colour, None
- Background: Black, Midnight, Stars, Vignette, Paper
- Ball trail: On, Off
- Counter line: Mode default, None, Bounces, Speed px/s, Filled %
- Finale: Mode default, Shrink reveal, Hold, Shatter, Spin reveal
- Start ball radius: 16–60
- Ball shrink: 0–15
- Wall growth per bounce (%): 30–250
- Bump width (%): 50–200
- Ball speed (%): 50–200
- Gravity: 0–100
- Speed gain per bounce, geode mode (px/s): 0–10
- Sound: On, Silent
- Sound set: Soft ticks, Glass, Wood, Bubbles, Crystal
- Volume: 0–100
- Repeatable seed: 0–2147483647
- Ball 1–4 colour
About the video
A ball bounces inside a circular arena. Every wall hit grows a bump of material on the wall and shrinks the ball until the arena is a seamless filled disc. Twelve procedural materials, geode and melt modes, up to four balls. Videos are vertical 9:16; the simulation runs up to 60 seconds and recordings download as an MP4.
Free includes 2 recordings a day with a watermark; paid plans remove it.