Hi Moritz,
thanks a lot for this detailed explanation. That was really hepful.
I wasnt aware that reyes renderer are so different in their sampling
approaches.
> Try setting shading rate to 10 in AIR, then run the same RIB through
> 3Delight, Aqsis or PRMan.
> AIR's image will look like you ran a mosaic filter on it in Photoshop.
Not exactly. Its the same effect like in 3delight. The textures are
blurry (AIR blurryness looks better than 3dlight blurryness ;) ),
silhuette is not affected at all by the shading rate even by extrem
insane values.
> The images created by the other renderers will still look reasonably
> good (definitely for lighting previews), only the shading will be
> blurrier. Silhoutte quality will definitely be very good still since a
> shading rate of 10 results in a u-poly edge length of only a little
> more than 3 pixels average, in a REYES renderer.
>
Shouldnt I see geometry artefacts if I increase the shading rate to,
lets say 100? I couldnt see any geometry edges, AIR or 3delight.
>
> Foremost probably because AIR doesn't work that way. If you lower
> shading rate in AIR, it creates the same number of polygons but
> samples them denser.
That would mean shading rate in AIR is a multiplicator for pixel samples?
Thanks again
haggi
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