HDRify VS Code Extension

A VS Code and Cursor extension that adds HDR image conversion and preview for EXR, HDR, and UltraHDR Jpeg files using the hdrify library. No external dependencies (OpenImageIO, OpenEXR, etc) required.

Author: Ben Houston | GitHub

HDR Image Preview

EXR and HDR: Click any .exr or .hdr file in the Explorer to open it with the HDR Image Preview (default action). The preview shows metadata (width, height, file size, pixels, internal format), an exposure slider (0.1–10), and a tonemapper selector (Neutral, AgX, ACES).
JPEG: For UltraHDR Jpeg files, right-click and choose Open with HDR Image Preview. Standard JPEGs open with the built-in viewer by default; use "Reopen Editor With → HDR Image Preview" to try opening as HDR (will show an error if not a gain-map JPEG).

HDR Image Preview

Convert HDR Image

Right-click an EXR, HDR, or UltraHDR Jpeg in the Explorer. A Convert HDR Image submenu appears with:

Convert to EXR — Output uses PIZ compression by default (configurable).
Convert to HDR — Radiance RGBE format.
Convert to UltraHDR Jpeg — JPEG with gain map (Ultra HDR / JPEG-R).

Multi-select: Select multiple files and right-click to convert all of them in one action. A progress indicator appears when processing two or more images.

Supported Formats

Format	Extension	Preview	Convert
OpenEXR	`.exr`	Default	✓
Radiance HDR	`.hdr`	Default	✓
UltraHDR Jpeg	`.jpg`, `.jpeg`	Optional	✓

Configuration

Setting	Type	Default	Description
`hdrify.conversionQuality`	number	90	Quality for UltraHDR JPEG output (0–100)
`hdrify.leaveOriginalWhenChangingFormat`	boolean	false	When converting, leave the original file and write to a new file (same name, target extension)
`hdrify.exrCompression`	string	`"piz"`	Compression for EXR output: `none`, `rle`, `zips`, `zip`, `piz`, `pxr24`

Replace vs Save-As Behavior

By default, the extension replaces the existing file when converting (overwrites with the new format and deletes the original). Enable Leave original when changing format to write to new files instead.

License

MIT

Installation (for contributors)

VS Code: Install from the Visual Studio Code Marketplace (when published) or install from VSIX.
Cursor: Install from Open VSX (when published) or install from VSIX.

To install from VSIX: run pnpm run package in this directory, then use Extensions: Install from VSIX... and select the generated .vsix file.