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PerInstanceColorAppearance shader bug

See original GitHub issue

(Moved from #7947.)

I think PerInstanceColorAppearance’s shaders have a problem: they apply st attributes if they’re set (for all instances)! PerInstanceColorAppearance’s documentation doesn’t make note of this at all (though maybe it did in the past, given the documentation fix in #7947; https://github.com/AnalyticalGraphicsInc/cesium/pull/7947/commits/df58cd1f549bda94544850aa0a9008c0aa29884d).

2019_08_06-15_10_07-1145x776

Here is a demonstration; zoom in and rotate the camera about the two ellipses to see the strange rendering effect:

https://cesiumjs.org/Cesium/Apps/Sandcastle/index.html#c=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

Issue Analytics

  • State:open
  • Created 4 years ago
  • Comments:6 (6 by maintainers)

github_iconTop GitHub Comments

1reaction
hpinkoscommented, Sep 18, 2019

Oooh, thanks for elaborating @nmschulte-aviture

1reaction
IanLilleyTcommented, Sep 18, 2019

Related to #8134

Read more comments on GitHub >

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