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Author Topic: UE Viewer PVRTC decoder issues; persistent across all titles  (Read 127 times)
Hox
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UE Viewer PVRTC decoder issues; persistent across all titles
« on: March 17, 2023, 12:03 »

Hi, I hope this reaches the maintainers of UE Viewer

The PVRTC decoder used in UE Viewer does not produce accurate results for PF_DXT1 compressed textures, and an example of what is expected and what is retrieved should be linked in this post. The official PVRTC decoder (C++) available on github yields correct results, so perhaps an update to the libraries would resolve this issue.

Backup imgur link if images don't come though: https://imgur.com/a/Fb0SOXj


* OfficialDecoder.png (64.17 KB, 256x256 - viewed 46 times.)

* UEViewer.png (67.09 KB, 256x256 - viewed 45 times.)
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floxay
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Re: UE Viewer PVRTC decoder issues; persistent across all titles
« Reply #1 on: March 17, 2023, 14:48 »

Any chance you could share the raw asset, as a sample?

Edit: I'm not a/the maintainer, just simply interested.
« Last Edit: March 17, 2023, 14:52 by floxay » Logged
Gildor
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Re: UE Viewer PVRTC decoder issues; persistent across all titles
« Reply #2 on: March 17, 2023, 22:58 »

Hi, I hope this reaches the maintainers of UE Viewer
...
For PVRTC textures, UModel is using external library:

PVRTexLib Library
  (c) Imagination Technologies Limited
  http://www.imgtec.com/powervr/insider/
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