ctl ☆
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Description:
Programming language for digital color management
Type: Formula  |  Latest Version: 1.5.4@2  |  Tracked Since: Dec 17, 2025
Links: Homepage  |  formulae.brew.sh
Category: Multimedia
Tags: color-management aces vfx digital-color film
Install: brew install ctl
About:
CTL (Color Transformation Language) is a programming language designed for digital color management, enabling precise definition of color transformations. It provides the core processing engine for the Academy Color Encoding System (ACES), allowing for high-fidelity color operations in visual effects and motion picture workflows.
Key Features:
  • Domain-specific language for color transformation
  • Reference implementation for ACES workflows
  • Supports complex, high-dynamic-range (HDR) color processing
  • Integrates with OpenEXR and TIFF for high-fidelity image I/O
Use Cases:
  • Implementing ACES color transforms in VFX pipelines
  • Building custom color management tools for film post-production
  • Processing high-dynamic-range (HDR) imagery
Alternatives:
  • OpenColorIO – OpenColorIO is a broader color management framework, whereas CTL provides the specific language and engine for defining the transforms that OCIO can execute.
  • ocioconfig – OCIO configs define color pipelines, but CTL is often used to author the underlying transforms that these configs reference.
License: AMPAS
Dependencies: aces_container, imath, libtiff, openexr
Bottles available for: arm64_tahoe, arm64_sequoia, arm64_sonoma, arm64_ventura, sonoma, ventura, arm64_linux, x86_64_linux
Version History
Detected Version Rev Change Commit
Sep 11, 2024 6:12pm 0 VERSION_BUMP 6d0f2e83
Oct 1, 2023 4:17am 12 VERSION_BUMP df134819
Aug 31, 2023 5:17pm 12 VERSION_BUMP 4e1fe43f
Mar 8, 2023 5:50pm 9 VERSION_BUMP ca514472
Mar 8, 2023 5:50pm 9 VERSION_BUMP 34d734a5
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