gltf model dark, without light and without reflections

Hello, I have a question, when I upload a gltf model to my 8thwall project, the model preview shows me that everything looks very good, but when I see it in augmented reality, the model comes out all dark, without light and without reflections. What I can do?


If you have a reflective material you need to import the refleciton module and add it to your 3D model

https://www.8thwall.com/8thwall/modules/reflections

Along with increasing lighting values