| commit | 9d87906677c17b4eddd23469f5989d142b9572fa | |
| author | Erik Faye-Lund <erik.faye-lund@collabora.com> | |
| Mon, 21 Nov 2022 10:07:15 +0000 (21 11:07 +0100) | ||
| committer | Erik Faye-Lund <erik.faye-lund@collabora.com> | |
| Mon, 5 Dec 2022 08:43:32 +0000 (5 09:43 +0100) | ||
| tree | 21e1426acc865c04e5b8764e3743b78ee73761d7 | treesnapshot (tar.gz zip) |
| parent | 71eb7b6880c842da2c2414f2be9468e9fd95d525 | commitdiff |
tests: add test that validates smooth-line coverage
This tests drawing a horizontal smooth line divided into varying length
segments, using additive blending to validate that the sum of the
coverage adds up to one, as one would expect.
While this isn't an explicit requirement in the OpenGL spec, the
identity should be a requirement due to the way smooth lines is
specified. It's also something that most reasonable approximations
should be able to produce.
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Part-of: <https://gitlab.freedesktop.org/mesa/piglit/-/merge_requests/747>
This tests drawing a horizontal smooth line divided into varying length
segments, using additive blending to validate that the sum of the
coverage adds up to one, as one would expect.
While this isn't an explicit requirement in the OpenGL spec, the
identity should be a requirement due to the way smooth lines is
specified. It's also something that most reasonable approximations
should be able to produce.
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Part-of: <https://gitlab.freedesktop.org/mesa/piglit/-/merge_requests/747>
| tests/general/CMakeLists.gl.txt | diffblobblamehistory | |
| tests/general/line-smooth-coverage.c | [new file with mode: 0644] | blob |
| tests/opengl.py | diffblobblamehistory |