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Gray-Scott Bloom applied to FRCTL's test image: Grows a live reaction across the frame — cells that swell, divide and eat into each other — seeded by the picture and never quite settling.

Liquid effect

Gray-Scott Bloom

Grows a live reaction across the frame — cells that swell, divide and eat into each other — seeded by the picture and never quite settling.

Runs live on video, images, a camera or generated art. Stack it with any other effect, and route LFOs, envelopes or any of ten audio bands to its controls so it moves with the music.

Try Gray-Scott Bloom freeAll effects

Controls

Feed
How fast fresh substrate arrives. Starve it and the pattern breaks into isolated cells; flood it and it closes into a solid sheet.
Kill
How fast the pattern is taken away again. Feed and Kill together are what pick the species — dividing cells, coral, worms or stripes — and the live ground is narrow, so move this in small amounts.
Scale
Size of one cell. This is the real rate control as well as the look: big cells cover the frame in a fraction of the steps small ones need.
Growth
How far the reaction advances each frame. Hard right is as fast as the model stays stable — past that it would shake rather than grow.
Seed
How much of the live picture keeps dropping into the reaction. At zero it grows once from the opening frame and then lives on its own; up high the footage keeps rewriting it and it never settles.
Tint
Colour of the reaction. The trailing edge sits a little further round the wheel than the front, so the pattern keeps some depth.
Blend
Weight of the reaction over the picture underneath.