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CesiumGS / cesium-unreal

Bringing the 3D geospatial ecosystem to Unreal Engine
https://cesium.com/platform/cesium-for-unreal/
Apache License 2.0
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Fatal error on packaged game startup #399

Closed xuelongmu closed 3 years ago

xuelongmu commented 3 years ago

I am currently building an application with Cesium for Unreal. When loading from the main menu to the persistent level that contains the Cesium actors and 3DTiles, I am getting the following error:

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The UE4-CesiumForUnreal_C2RDemo Game has crashed and will close
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Assertion failed: EffectiveSize == (uint32)MipMap.BulkData.GetBulkDataSize() [File:D:/Build/++UE4/Sync/Engine/Source/Runtime/Engine/Private/Rendering/Texture2DResource.cpp] [Line: 212] 
Texture 'Texture2D_2147482455', mip 1, has a BulkDataSize [65536] that doesn't match calculated size [16384]. Texture size 256x256, format 71

I am getting this error about half a second after entering the world, and the 3D tiles hadn't started showing up on my screen yet.

Does anyone have an idea of what's going on here?

nithinp7 commented 3 years ago

Does this happen on main too or just frankenwater?

xuelongmu commented 3 years ago

I was seeing the issue on frankenwater branch. The issue was resolved with the following commits, thanks @nithinp7 On watermask (will eventually be merged to master): https://github.com/CesiumGS/cesium-unreal/pull/338/commits/f6978fb440bb2de3d0c1ae6505db17f06b7f1a82

On frankenwater https://github.com/CesiumGS/cesium-unreal/commit/c9d8c5a9bd907e2c5bbe8715ed8d2967f1b2f975