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| author |  Chris Dalton <csmartdalton@google.com> | 2017-04-13 14:26:00 -0600 |
|---|---|---|
| committer |  Skia Commit-Bot <skia-commit-bot@chromium.org> | 2017-04-14 15:14:11 +0000 |
| commit | 4343654bc4a93812cba168a665deef0de2ebcfdd (patch) | |
| tree | bee82de71d4671febf21ba1c13c2f312cbd2f8de /site/user/sample/gradient_wrong.png | |
| parent | 028c3d77ea0e49982e92c6c9614cf59d687f4370 (diff) | |
Improve accuracy of cubic classification
- Updates the logic to reflect the Loop-Blinn paper instead of the GPU
gems website.
- Removes the threshold for detecting local cusps. The serpentine
codepath works for these cusps anyway, so what we really want to know
is whether the discriminant is negative.
- Makes sure to not scale the inflection function by 1/0.
- Shifts the inflection function coefficients in d[] so they match the
paper.
- Stores the cubic discriminant in d[0].
Bug: skia:
Change-Id: I909a522a0fd27c9c8dfbc27d968bc43eeb7a416f
Reviewed-on: https://skia-review.googlesource.com/13304
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
Diffstat (limited to 'site/user/sample/gradient_wrong.png')
0 files changed, 0 insertions, 0 deletions