[Mesa-dev] [PATCH 3/9] radeonsi: improve quality of 16 sample locations

[Marek Olšák]

On Mon, May 7, 2018 at 7:53 AM, Nicolai Hähnle <nhaehnle at gmail.com> wrote:

> On 02.05.2018 06:13, Marek Olšák wrote:
>
>> From: Marek Olšák <marek.olsak at amd.com>
>>
>> This results in better 16x and 8x quality when using these locations.
>> Verified with the piglit MSAA accuracy test.
>>
>
> How did you come up with those? :)
>

I drew the sample locations in an image editor on a 16x16 grid to see if
the samples are evenly distributed. Then, I identified possible suspects
for improvement in samples 4-7 and was manually adjusting the positions
until I got an improvement in quality with the piglit MSAA accuracy test.

Marek
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