Hello!
I have a ifc file(,the model is white color) and I have to export them to gltf to visualize them on Cesium.
With FME I can export them to gltf, but when i visualize them on Cesium,it is rendered black color. I found the gltf file lost some things such as "NORMAL" in "attributes",and so on.
I don't know whty, can you give some advise? thank you
+20Hi @hk,
The features in your IFC have no textures set on them, so no textures will be written to the gltf file. You can use a GeometryColorSetter transformer to quickly create a color texture for your feature before writing them to gltf.
Thank you @DaveAtSafe. Unfortunately i am a beginner ,i don't known how to use a GeometryColorSetter transformer to do it. Can you give me the example or instructions?
+11Thank you @DaveAtSafe. Unfortunately i am a beginner ,i don't known how to use a GeometryColorSetter transformer to do it. Can you give me the example or instructions?
Xiaomeng
+47Hi @hk I just wanted to say that I had the same issue. The problem was that the surfaces were missing Vertex Normals. If you add a GeometryValidator and look for the option for Surface Normals. The GeometryValidator can repair these issues. Give it a try.
