PatternSpace

What PatternSpace is

PatternSpace is a macOS test pattern generator for display calibration, producing SDR and HDR patches, pattern grids, clipping checks, gamma tools, and color swatches. Its library contains more than 100 GPU-rendered patterns in Color, Checks, Geometry, Swatch, Gamma, and Clipping categories. The Metal EDR pipeline supports up to 16-bit-per-channel rendering and vsync-locked patch output. It works with connected internal or external displays and requires macOS 15.6 or later on Apple Silicon or Intel Macs. Pro adds support for ColourSpace Network Server, CalMAN UPGCI, and PGenerator network automation. PatternSpace Remote uses a documented WebSocket/JSON-RPC protocol with four-digit pairing; the free evaluation allows up to 25 rendered patches per session. The free plan includes 14 SDR reference presets. PatternSpace supplies patterns but does not measure or automatically correct displays, so accuracy requires measurement hardware. Pro costs $39.99 one-time; DeckLink SDI output is a separate $39.99 one-time purchase and requires compatible Blackmagic hardware and Desktop Video 16.4.x.

Who it suits

PatternSpace is aimed at display calibrators, reviewers, video engineers, and home theater installers who need predictable pattern output from a Mac. It may also suit people using supported calibration automation or LUT and ICC export tools.

Limits

The free plan includes up to 25 Remote patches per session. LUT Tools is marked beta; inspecting and building chains are free, while writing LUT or ICC files requires Pro. DeckLink SDI is limited to specified progressive 720p/1080p SDR modes and does not support library patterns or HDR/UHD SDI.

Getting started

1. Open the PatternSpace website.
2. Use a Mac running macOS 15.6 or later on Apple Silicon or Intel.
3. Connect an internal or external display.
4. Start with the free plan, or buy Pro for automation, unlimited Remote rendering, advanced HDR, and LUT or ICC export.
5. For DeckLink SDI output, buy it separately and use compatible Blackmagic hardware with Desktop Video 16.4.x.

Verdict

PatternSpace offers extensive pattern generation and calibration automation options for Mac users, but it is not a display measurement or correction tool. Check the required macOS version and separate DeckLink requirements if you need SDI output.