[Mesa-dev] [PATCH 13/25] radeonsi: add VS epilog

[Marek Olšák]

On Tue, Feb 16, 2016 at 5:12 PM, Nicolai Hähnle <nhaehnle at gmail.com> wrote:
> On 15.02.2016 18:59, Marek Olšák wrote:
>>
>> From: Marek Olšák <marek.olsak at amd.com>
>>
>> It only exports the primitive ID.
>> Also used by TES when it's compiled as VS.
>>
>> The VS input location of the primitive ID input is v2.
>
>
> So the reason for having two unused outputs/return values of the main VS is
> so that primitive ID can get passed through without any moves? Sounds good,
> but may be worth documenting e.g. where VS_EPILOG_PRIMID_LOC is defined.

Yes, I'll add the comment.

Marek