loper

Loper · VFX, 3D & motion

Open .comp files on your Mac.

.comp .setting

Blackmagic Fusion comps and macros are Lua tables: tools, inputs and connections.

Loper is a free, minimal editor for macOS that opens Fusion comp and macro (.comp, .setting) instantly and colors every part of the file, so you find the value you need at a glance and can fix it right there. No IDE, no project to load, no gray wall of text.

Download Loper – freeAll formats
042_comp_v012.comp opened in Loper: Fusion comp and macro (.comp, .setting) with color-coded Lua
Show the file as text
Composition {	CurrentTime = 1001,	RenderRange = { 1001, 1096 },	Tools = ordered() {		Plate = Loader {			Clips = { Clip { Filename = "/shows/night/042/plate.####.exr" } },		},		Grade = ColorCorrector {			Inputs = {				MasterRGBGain = Input { Value = 1.08 },				Input = Input { SourceOp = "Plate", Source = "Output" },			},		},	},}

How to open .comp files

  1. Download Loper (free, Apple silicon, signed and notarized) and move it to Applications.
  2. Double-click your .comp file, drag it onto the Loper window, or right-click it and choose Open With › Loper.
  3. Want every .comp file to open in Loper? Choose Loper › Make Loper the Default Editor….

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