About ImageOverlay disappear

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KaiTang KaiTang
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About ImageOverlay disappear

Hello everyone,
  I add an '.png' image on the earth by  ImageOverlay .When the viewpoint is approaching the picture little by little ,it gradually disappeared from the outside until it was completely invisible. Then the whole picture is displayed abruptly.
  I think the reason may be culling matrix ,but don't found anything about it.
gwaldron gwaldron
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Re: About ImageOverlay disappear

You may be seeing the issue documented here; are you trying to use a projected map?
https://github.com/gwaldron/osgearth/issues/1209
Glenn Waldron / Pelican Mapping
KaiTang KaiTang
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Re: About ImageOverlay disappear

Yes´╝îI descovered this issue by accident,and try to solve it . But I failed.