Point Lights distance?
I am working on an EMS focused game. Something that has been eating at me is the lighting for the ambulance lightbar(s).. My prototype lightbar is just a blueprint I put together in the editor. I am using point lights as the actual lights. Each light on the bar, has a point light as a child. The lightbar is working pretty well and looks really nice (for a prototype) up close. The problem is that when i get a certain distance away from it (a rather short distance might I add), I can no longer see the point lights flashing, only the material on the "lights" changing. I can see the light on the ground from the point light, however up close the point light ITSELF is visible, which is what I want.
I've looked into LOD and haven't been able to fix it. To make this a bit easier to answer, How would I go about making a point light visible from extreme distances? Or if anyone has a better idea on what kind of light to use for a light bar I'll accept that too lol. Point lights make the most sense right now.
===== EDIT =====
That's a good thing to note Tim, thanks for pointing that out. Unfortunately that did not solve my issue. I've recorded a short clip so you can see what's happening
To me this sounds like a bounds issue with the point light ignoring the bounds of the mesh it's casting a shadow against at a distance.
I've setup a simple rotating mesh and light BP and this is my result:
As you see in the image the point light ignores the mesh beyond certain distances. Is this what you're seeing as well?
If so, you'll just want to increase the bounds of your mesh that the light is being cast onto. You can go into the details panel for the meshes in your BP and find "Bounds Scale" to adjust this. The default value is 1.0. Adjust this until it's at the max distance you will need. I wouldn't go any higher than that because since the bounds are being increased this means that the mesh will be in the scene so long as it can be viewed at those distances. This can add potential performance issues.
Let me know if this was your issue. If not, can you post a video or images to demonstrate what you're seeing and I can take it from there.
answered May 13 '15 at 01:41 PM
Tim Hobson ♦♦ STAFF
I had a similar issue and one of the Tim's points fixed it for me. My light was recessed in a cone I used for decoration. As I approached the light it would seem to shut off. Pulling the light farther out of the cone made it work at any distance. Hope this helps someone!
answered Sep 16 '17 at 12:49 AM
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