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I don't think that's the case. r1977 was faster because that's pre SphereRTSL which uses a more expensive sphere test to deal with the recent change in T_EPSILON. When I made the square tiles the default, I did so after adding a fast path for square fragments to mitigate the difference in frame buffer splat time (about 1.5% IIRC, so not 19 fps vs 24 fps).

Give r2060 or r2068 a test instead vs head and I think you'll see a fairly small diff vs head.

On Apr 22, 2008, at 4:29 PM, Abe Stephens wrote:

Thanks- good to know.
Abe

On Apr 22, 2008, at 5:28 PM, Thiago Ize wrote:

The square tile image traverser was made the default. Result is that the default scene, with it's two objects, gets slower and almost every other scene gets faster.

Thiago

Abe Stephens wrote:

Today I accidently linked to an older version of Manta that I have lying around instead of the current head revision-- I noticed that back at r1977 the default scene ran at about 24fps on one of my cores, while the head revision is down to about 19 fps. Any idea what happened?

Abe

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• [Manta] default scene 20% fps hit?, Abe Stephens, 04/22/2008
  • Re: [Manta] default scene 20% fps hit?, Thiago Ize, 04/22/2008
    • Re: [Manta] default scene 20% fps hit?, Abe Stephens, 04/22/2008
      • Re: [Manta] default scene 20% fps hit?, Solomon Boulos, 04/22/2008

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