32-bit HDR editing

Affinity Photo 2 has full support for 32-bit float editing, including import/export for OpenEXR and Radiance formats. Compared to 8-bit or 16-bit, 32-bit presents an unbounded color space that can contain a vast amount of tonal information. This means the information can be modified to extremes without losing fidelity or accuracy. For example, highlight detail blown out by an adjustment or filter can be recovered even after successive operations.

Uses for 32-bit HDR

Popular uses for 32-bit editing include:

Examples

Exposure merging for greater dynamic range

Before
After
Before: Single exposure from camera. After: 7 bracketed exposures merged and lightly tone mapped.

3D render passes

Before
After
Before: Base HDR color render pass of a 3D scene. After: Base HDR color tone mapped and blended with scene color pass.

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