Html5 black mesh and no light

Hello.
When I turn to “render preview /mobile html5” all Light doesn’ works. Previously placed 3D meshes are illuminated, but new imported meshes are totally black. I checked that all lights are setup as static, my meshes are less then 65k vertices and the secondo uv channel on each mesh is ok. But lights still not works even ofter Light build. Could you help me?

Hey ,

  • Could you please provide some screenshots of what’s happening within your project?
  • Providing detailed reproduction steps would also be very helpful.
  • If you’re not able to provide detailed reproduction steps, please upload a sample project this is occurring in.
  • What are your light settings?
  • Is this only happening with your meshes or ones within the editor too?
  • Does it look the same way when packaged?
  • What are your Engine Scalability settings?
  • How does this look on 4.12.0?

In the meantime, please make sure that you look over the following [documentation][1], as it may help you.

Thanks!

Performance Guidelines for Mobile Devices in Unreal Engine | Unreal Engine 5.1 Documentation

Hey Mandrake 1983,

We have not heard back from you in a few days, so we are marking this post as Resolved for tracking purposes. If you are still experiencing the issue you reported, please respond to this message with additional information and we will offer further assistance.

Thank you!

Hi. I am sorry for delay.
I solved my issue by reducing vertex count of my meshes.
There is a strange difference between ( in my case) 3D studio polygon count and the unreal polygon count.
Although in 3ds my mesh have less then 65k polygons, in unreal polygon count comes up to 71k.
So I have divided my mesh in two parts and I have solved.
I have other little issues but I am trying to resolve them myself before write again.
Thank u.