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TodicaIonut
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Nov 15, 2025
| 'DWAA_COMPRESSION', | ||
| 'DWAB_COMPRESSION' | ||
| 'DWAB_COMPRESSION', | ||
| 'UNKNOWN_COMPRESSION', // 10 |
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EXR compression test:
htj2k256 float 32.exr test
htj2k256 half 16.exr test
htj2k32 float 32.exr test
htj2k32 half 16.exr test
HTJ2K256_COMPRESSION- JPEG 2000 lossless coding, in blocks of 256 scanlines and using the High-Throughput (HT) blocker. Offers both speed and high-coding efficiency.
HTJ2K32_COMPRESSION- JPEG 2000 lossless coding, in blocks of 32 scanlines and using the High-Throughput (HT) blocker. Offers both speed and high-coding efficiency.
cc @mrdoob
Suggested change
| 'UNKNOWN_COMPRESSION', // 10 | |
| 'HTJ2K256_COMPRESSION', // 10 | |
| 'HTJ2K32_COMPRESSION' // 11 |
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Related issue: #31911
Description
Adds support for HTJ2K (High Throughput JPEG 2000) compression in EXRLoader, following OpenEXR 3.4.0 specification. Includes a new JPHLoader for standalone JPEG 2000 files.
Changes
EXRLoader: Added HTJ2K decompression (compression code 11)
JPHLoader: New loader for standalone JPEG 2000/HTJ2K files
Bundled OpenJPH WASM: ~126 KB (105 KB WASM + 21 KB JS)
examples/jsm/libs/openjph/