[Piglit] [PATCH 0/3] Add HiZ tests

[Marek Olšák]

On Wed, Apr 27, 2011 at 10:59 PM, Brian Paul <brianp at vmware.com> wrote:

> On 04/27/2011 02:00 PM, chad at chad-versace.us wrote:
>
>> From: Chad Versace<chad.versace at intel.com>
>>
>> Add tests that check that depth tests work correctly when rendering to
>> window
>> framebuffers and to FBO's with various formats. These tests act as
>> a preliminary sanity test for HiZ.
>>
>> Later, tests will be added that cover more complex situations in which HiZ
>> is
>> likely to cause problems, such as HiZ buffer resolves and HiZ clear
>> operations.
>>
>
> Dumb question: what is HiZ?
>

Hierarchical Zbuffering.

Here's a good explanation:
http://developer.amd.com/media/gpu_assets/Depth_in-depth.pdf

Marek
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