The below example having good lighting even after disabling the light. my export file doesn’t show in this way after export. me too using scene.createDefaultEnvironment(); as well intensity. but mesh glows only when light falls on it. is there anyway.I m not using default light as I m using blender export glb file with lights. lights are working properly but when i off lights using debuger, its totally black.
As far as I can say based on your words.
- Check your file in Sandbox and see if everything is OK.
- Here https://www.babylonjs-playground.com/#UQIY3E#3 the environment is commented, and when you turn off the spotlight, everything will be black since there is no light there anymore.
- Seems that you may have some problems with your environment or its texture. Environment is actually the light source; when one uses it, it is possible not to use lights at all.
- Would be helpful to see your example in Playground in order to find the exact answer. Here is the documentation how to use your assets in PG - Using External Assets In the Playground | Babylon.js Documentation
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Go @labris Go !!! thanks a lot for your great answers 
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Thank you for your detailed explnation.
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