openexr@2 ☆

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Description:
High dynamic-range image file format

Type: Formula | Tracked Since: Nov 13, 2024

Links: Homepage | formulae.brew.sh

Category: Multimedia

Tags: graphics vfx image-format hdr ilm

Install: brew install openexr@2

About:
OpenEXR is a high dynamic-range (HDR) image file format developed by Industrial Light & Magic for use in visual effects and computer graphics. It supports multiple lossless and lossy compression methods, deep data for compositing, and arbitrary channels, making it a professional standard for storing and exchanging high-fidelity imagery.

Key Features:

High dynamic range (HDR) and wide color gamut support
Lossless and lossy compression options
Support for 'deep data' for multi-sample pixels (e.g., volumetric rendering)
Arbitrary channels and metadata storage
Industry-standard format for visual effects and animation

Use Cases:

Storing and exchanging high-fidelity rendered frames in visual effects and animation pipelines
Handling HDR imagery in professional photography and digital content creation software

Alternatives:

OpenEXR 3 – Newer major version with additional features like multi-part files and faster compression; this formula is the stable v2 branch.
TIFF – A more general-purpose raster format, but less optimized for the high dynamic range and deep data typical in VFX.
Radiance HDR – An older, simpler HDR image format lacking OpenEXR's extensive feature set for professional compositing and metadata.

Version History

Detected	Version	Rev	Change	Commit
Nov 13, 2024 9:06am		0	VERSION_BUMP	b8bc4bdc
Feb 21, 2023 2:38am		0	VERSION_BUMP	c1db5616