TexFormat.Rgb9e5

Description

Shared-exponent HDR R/G/B with 9-bit mantissa per channel and a 5-bit shared exponent. A compact HDR format that packs values way beyond the [0,1] range into just 32 bpp! No alpha though, and sharing the exponent means all three channels need similar magnitudes - perfect for environment maps! Usually sample-only; GPUs typically can’t render to it.

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