Cesuim Tile Map Server not supports transparent cutting

Kevin_Ring · May 30, 2023, 11:23am

I think this may be the same bug as described here:

If so, it’s already been fixed in this PR:

github.com/CesiumGS/cesium-unity

Fix missing textures when using multiple raster overlays with the same projection

CesiumGS:main ← CesiumGS:remove-correct-overlay-index

opened 09:02AM - 10 May 23 UTC

kring

+47 -22

This fixes the bug reported here: https://community.cesium.com/t/tms-wms-raster…-overlay-overlapping-is-flikering/23904 There was a bug in `UnityPrepareRendererResources::detachRasterInMainThread` where it would clear the wrong overlay texture slot in the material. Instead of using the index of the overlay in the list of overlays to look up the correct material texture slot, it would use the overlay texture coordinate index. With only one overlay, these are the same. With two overlays with different sets of texture coordinates (e.g., one web mercator the other geographic), they're also likely to be the same. But with two overlays with the same projection, these numbers are different, and attempts to detach the second texture would accidentally detach the first instead. End result: missing textures. See the community forum post above for an easy way to test this. You can use `https://sandcastle.cesium.com/CesiumUnminified/Assets/Textures/NaturalEarthII/tilemapresource.xml` for the TMS URL rather than downloading it and loading it locally as described in the post.

The fix will be included in the version of Cesium for Unity that will be released later this week.

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Cesuim Tile Map Server not supports transparent cutting

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