Labels/Billboards behind the camera appear in the wrong position when minimumDisableDepthTestDistance is Infinity

[denverpierce]

Gist

This happens when scene.minimumDisableDepthTestDistance is set to Number.POSITIVE_INFINITY, when viewing Labels/Billboard/Points at angles low to the Horizon and reasonably close to the entities.

Entities behind the camera will render in the wrong position.

[pjcozzi]

Thanks for the report, @denverpierce!

@bagnell is this an easy fix? Perhaps you could guide @rahwang?

[oterral]

I'm interested to fix this if someone can give me guidance

[oterral]

It happens not only with INFINITY value, but whatever the value I put .

[hpinkos]

Thanks for volunteering @oterral! @bagnell do you have any suggestions here?

[rahwang]

Does anyone have any ideas about what this might be? I'd really like to get this fixed soon, since it pops up in my workshop app. @bagnell , any clue? I'd be happy to work on this.

[pjcozzi]

@rahwang do you want to experiment with the shader? See this part: https://github.com/AnalyticalGraphicsInc/cesium/blob/master/Source/Shaders/BillboardCollectionVS.glsl#L259-L276

[hpinkos]

@denverpierce @oterral this issue was fixed in #5735 and will be included in the 1.37 release available on September 1st. Thanks!

[denverpierce]

Did you mean #5735?

[hpinkos]

uh, yes! Thanks @denverpierce =)

[oterral]

good thx for the fix !!!!

[thw0rted]

I don't know if this was missing before, but right now disableDepthTestDistance is missing from the constructor options in the docs.

[hpinkos]

Thanks @thw0rted! I submitted a PR to update the doc #5918