Hi all, im having an issue where only my Rect lights in my scene are not reflecting on my vehicle’s windshield. All the other lights show up. The odd thing is, if the Rect light is super thin then it does show up, but quickly disappears if it gets wider. Im attaching some screengrabs of my scene as well as my project settings.
This has been an issue for over 4 years now, very frustrating!
Rect lights are not supported by the forward renderer, so if you try to use forward shading for translucency then you won’t get any direct lighting from rect lights, not just specular reflections (bounce lighting will still work, thanks to Lumen)
They’ve always been like this.
Yep, that’s precisely the issue. Still no support, even though rect lights have been in the engine for half a decade now.
From the 5.5 release note rect lights should work with forward renderer. Did u try it in 5.5?
But the flag says support for translucency materials. Are you sure this is the flag for enabling rect lights?
thanks mate!, thats the one!.
Exact problem mentioned in the posts. Rec lights not appearing in translucent materials, this fixed it all.
Its an understandable problem as many realtime engines dont support rec lights in reflections including alot of viewports in modelling apps. So yeah, I get that it is default ticked off for optimization, But jeez. If you didnt mention it, I would of assumed forever more that it was just a limitation of unreal.
Legend, Don’t know how you found that little nugget of gold
