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Intel Has Buggy HiZ Support Published

Mesa

Published on 25 September 2011 04:07 AM EDT
Written by Michael Larabel in Mesa
7 Comments

Chad Versace of Intel has published a set of nineteen patches to the Mesa mailing list that implement HiZ and depth resolve support for the Intel Linux graphics driver. Unfortunately, it's not without some regressions.

While the patches are there for hierarchical Z (HiZ) support on Intel hardware, the feature isn't enabled by default as it can result in some Piglit regresssions and problems with mip-mapped depth textures.

The patches add nearly 1,000 lines of code to the Intel Mesa DRI driver, but hopefully the issues will be worked out soon and then turned on by default. See this patch set if you're interested in giving it a shot.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
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