 DXt1 Cuda compression error |
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 Nov 3 2009, 04:59 PM
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#1
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Newbie  Group: Members Posts: 1 Joined: 3-November 09 Member No.: 9,743  |
Hi
I have checked out nvtt from the trunk 5 days ago (I wanted the latest float image functionalities) and it seems the hardware cuda dxt1 compression error is not working properly. It works fine when using software compression though. To make sure it was not my cuda driver that was the cause of this corruption, I tested against the branch version 2.0.6 (by recompiling nvtt and nvcompress) and the cuda hardware compression went fine. The bug can be reproduced any time. Any idea why? Thanks |
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Nov 3 2009, 05:17 PM
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#2
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 Advanced Member Group: Moderators Posts: 99 Joined: 23-June 07 Member No.: 3 |
QUOTE (mickaelg @ Nov 3 2009, 09:59 AM)  Hi I have checked out nvtt from the trunk 5 days ago (I wanted the latest float image functionalities) and it seems the hardware cuda dxt1 compression error is not working properly. It works fine when using software compression though. To make sure it was not my cuda driver that was the cause of this corruption, I tested against the branch version 2.0.6 (by recompiling nvtt and nvcompress) and the cuda hardware compression went fine. The bug can be reproduced any time. Any idea why? Thanks The trunk branch is a development branch and is often broken or unstable. I'd recommend using the 2.0 branch or any of the previous releases if you want something stable. That said, I thought the DXT1 CUDA compressor was working just fine, while the other CUDA compressors are currently broken. Are you having problems with the DXT1 compressor or with the others? |
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