v1.18.0

Added

• New effect: Sumi — ink drops bloom in water on every onset. A real incompressible fluid — advection, a Jacobi pressure solve, and vorticity confinement — carries twelve dye colours, one per pitch class, that splat onto a circle-of-fifths ring. Bass makes the ink rise, spectral flux sharpens the swirl, and the central drop takes the hue of the detected key.
• Custom effects can now chain render passes. A pass in a .pfx may sample earlier passes' output this frame through input0(uv), input1(uv), …, read any feedback pass's previous frame via prev_inputs, and iterate in place for relaxation solves. This is the machinery behind Sumi's fluid solver and the groundwork for more multi-stage looks.

Downloads

Platform	File	Notes
macOS	.dmg	Universal binary (Apple Silicon + Intel)
Linux x86_64	.tar.gz	glibc 2.35+ (Ubuntu 22.04+, Debian 12+)
Windows x64	.zip	Windows 10+

Getting started

macOS: Open the DMG, drag Fosfora.app to Applications (or run directly). Signed and notarized.

Linux / Windows: Extract, run fosfora from the extracted directory. The assets/ folder must be next to the binary.

Requirements

• GPU: Vulkan (Linux/Windows) or Metal (macOS)
• Audio: Built-in mic or line-in for audio-reactive visuals
• NDI® (optional): NDI® SDK runtime for network video output
• Video playback (optional): ffmpeg on PATH for media layers

---

NDI® is a registered trademark of Vizrt NDI AB.