Hello, I have a problem with the back of my objects which get a directional Light. The back is completely black and i dont know how to fix it. I want it to be only gray(like a normal shadows are). I only downloaded Unity Personal and without changing any settings I have this problem.
I am a beginner and I really hope I can find help here.
You’ll see a picture of it:
That’s just the way directional light works. At best, you’ll get light on up to three faces of a cube (if your directional light is angles on all three axes), with the remaining faces being pitch black.
There are some ways to deal with this:
- You could try using two directional lights. One could be lower intensity to illuminate the “back” of the objects less than the main light. This only works in some setups (I don’t think HDRP allows multiple directional lights, for example.)
- You can use different kinds of lights, like point or spotlights, but you’ll need several, and the shadows won’t look as crisp.
- You can enable Realtime Global Illumination, which causes lighting to “bounce” realistically. However, there are many caveats to that. The main one being, Realtime GI is now deprecated, so it’s probably not a good idea to use it in a new project unless you know what you’re doing and accept the downsides. It’s also a bit CPU intensive to use it.
- You can also increase the ambient light in the scene, which will give all objects some lighting regardless of the angle of the directional light. That might look fine in some cases, where in other cases it could make everything look flat, depending on how much light you add.