Hello,
having built the 3D Tiles Samples Generator from https://github.com/AnalyticalGraphicsInc/3d-tiles-tools/tree/master/samples-generator when attempting to display the “TilesetWithTreeBillboards” 3d-tiles tileset Cesium v1.49 triggers the following runtime exception:
An error occurred while rendering. Rendering has stopped.
RuntimeError: Unsupported glTF Extension: KHR_techniques_webgl
Error
at new t (http://localhost:8084/ThirdParty/Cesium/Cesium.js:451:28523)
at Object.A.checkSupportedExtensions (http://localhost:8084/ThirdParty/Cesium/Cesium.js:501:17740)
at xe.update (http://localhost:8084/ThirdParty/Cesium/Cesium.js:503:8500)
at x.update (http://localhost:8084/ThirdParty/Cesium/Cesium.js:515:2972)
at A.update (http://localhost:8084/ThirdParty/Cesium/Cesium.js:515:10968)
at N.process (http://localhost:8084/ThirdParty/Cesium/Cesium.js:517:29584)
at Z (http://localhost:8084/ThirdParty/Cesium/Cesium.js:518:25634)
at V.update (http://localhost:8084/ThirdParty/Cesium/Cesium.js:519:611)
at a.update (http://localhost:8084/ThirdParty/Cesium/Cesium.js:496:10993)
at ot (http://localhost:8084/ThirdParty/Cesium/Cesium.js:532:22244)
After a bit of online research I came up to the conclusion that either Cesium doesn’t support that glTF 2.0 extension yet or my WebGL driver doesn’t.
Not sure which one of them though.
Has the AGI gltf pipeline (used to create the instanced i3dm tree 3d-tiles tileset) to use the 2.0 glTF version instead of the 1.0 (if that being the culprit of the problem)?
I need to display 3d trees on a Cesium map, how to solve or circumvent the problem?
Cesium 1.49, Chrome Version 68.0.3440.106 (Official Build) (64-bit), Windows 7 64bit.
Please help with this issue, thanks.