[Nouveau] [RFC PATCH 00/11] Implement ARB_cull_distance

[Ilia Mirkin]

On Wed, May 27, 2015 at 6:51 PM, Marek Olšák <maraeo at gmail.com> wrote:
> On Wed, May 27, 2015 at 9:05 PM, Tobias Klausmann
> <tobias.johannes.klausmann at mni.thm.de> wrote:
>>
>>
>> On 27.05.2015 18:28, Marek Olšák wrote:
>>>
>>> Another thing to consider is linking shaders that occur before the
>>> rasterizer (e.g. any two shaders from VS->TCS->TES->GS). The maximum
>>> number of written distances is still 8, but what happens if VS writes
>>> 1x clip and 7x cull and GS reads 8x clip and no cull?
>>
>>
>> i think this should be rejected anyway (in the glsl?!), constraining vs
>> output to be the same as gs input where the last definition is the valid
>> one....
>
> No, it can't be rejected with separate shader objects.

Tangentially, I wonder if it makes sense to have an sso mode for
shader runner, either toggleable from the shader config or maybe even
on the cmdline.