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Terrain geometry seem shows unsightly crack in terrain. #7555

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spencerparkin opened this issue Feb 10, 2019 · 5 comments
Closed

Terrain geometry seem shows unsightly crack in terrain. #7555

spencerparkin opened this issue Feb 10, 2019 · 5 comments

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@spencerparkin
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In the screen-shot below, notice the seem in the terrain. It appears that LOD tiles for the terrain are never loading as I zoom in. This can be readily found/reproduced by using my web-app indicated in the screen-shot's URl line.

image

@hpinkos
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hpinkos commented Feb 11, 2019

@spencerparkin What terrain provider are you using?

This might be fixed by this PR: #7061

@spencerparkin
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Here are my image providers...

var terrain_image_provider = new Cesium.ArcGisMapServerImageryProvider({url:'//services.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer'});

var topo_image_provider = new Cesium.ArcGisMapServerImageryProvider({url:'//services.arcgisonline.com/ArcGIS/rest/services/World_Topo_Map/MapServer'});

I think you're right. I just need to wait until that PR is merged into master. My app is currently deployed with a built copy of Cesium. I'm going to change that once a new release of it is available that also has my recently merged PR in it. I just need to hang tight. Thanks for looking into this.

@hpinkos
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hpinkos commented Feb 11, 2019

@spencerparkin I was wondering what terrain provider you were using, not imagery provider. Are you using terrainProvider: Cesium.createWorldTerrain() to add Cesium World Terrain?

@spencerparkin
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Oh! Yes, here's a snippet of my code...

viewer = new Cesium.Viewer('cesiumContainer', { terrainProvider: Cesium.createWorldTerrain({ requestVertexNormals: true }),

I'm sorry, I'm an idiot.

@hpinkos
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hpinkos commented Feb 11, 2019

No problem! I wasn't able to reproduce the terrain cracking on my computer, but I'm pretty sure what you're seeing will be fixed by #7061
I'm going to close this issue for now, but feel free to re-open it if you upgrade Cesium after #7061 is merged and you're still seeing problems. Thanks!

@hpinkos hpinkos closed this as completed Feb 11, 2019
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