MantisBT - Zandronum |
| View Issue Details |
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| ID | Project | Category | View Status | Date Submitted | Last Update |
| 0004622 | Zandronum | [All Projects] Bug | public | 2026-07-22 12:24 | 2026-08-11 18:17 |
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| Reporter | IlyStr | |
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| Assigned To | | |
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| Priority | normal | Severity | minor | Reproducibility | always |
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| Status | new | Resolution | open | |
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| Platform | ASRock B550, AMD Ryzen 5 56 x64 | OS | Windows 10 LTSC Enterprise | OS Version | 21H2 (19044.357) |
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| Product Version | 4.0-beta | |
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| Target Version | | Fixed in Version | | |
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| Summary | 0004622: Optimized PNGs with palette have weird alpha |
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| Description | Optimized 8-bit indexed PNGs with a lot of transparent pixels (like clouds, smoke, vapor and etc) have stepped and weird alpha in zandronum |
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| Steps To Reproduce | 1: optimize PNG using PNGOut, PNGCrush, DeflOpt
2: run in zandronum |
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| Additional Information | Zandronum\GZDoom sprite comparison: https://imgur.com/a/WxTiadZ |
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| Tags | No tags attached. |
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| Relationships | |
| Attached Files |  Alpha_Bug__TestFog.pk3 (28,403) 2026-08-11 18:15
/tracker/file_download.php?file_id=3332&type=bug
Alpha_Bug__TestFog-2.pk3 (28,403) 2026-08-11 18:15
/tracker/file_download.php?file_id=3333&type=bug |
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