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Last active April 7, 2021 12:50
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EquirectangularSeamCorrection results
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results.md

https://twitter.com/bgolus/status/1379670566961995776

Unity 2021.1.1 on Apple M1 MacMini, Mac standalone player build, capture frame in Xcode and see the timings it prints for the fragment shader of the main draw.

Uncompressed, Aniso on:

  • None: 338, 373 us
  • Tarini: 361, 582 us
  • Explicit LOD: 418, 423 us
  • Explicit gradients: 266, 373 us
  • Quad communication: 291, 578 us

Notes:

  • The timings seem to be really all over the place, see above for the same captures with wildly different times :(
  • None has a visible seam, as expected
  • Tarini and QuadComm have both identical seam. Smaller, and in the opposite side of "the earth" than None, but still a seam
  • Explicit LOD: no seam, but also no aniso (i.e. looks the same as with aniso off, blurrier towards the poles)
  • Explicit gradients: looks best (no seam, and aniso intact)
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