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Question by sevaenz · Apr 15, 2021 at 12:46 PM · lightingdistance

Lower light intensity with distance and when you are outside certain radius?

Hi, I wanna lower light with distance from an object but I'm having trouble
This is the code I have right now, it kinda works but not exactly as I want it to work

 void Update() {
         dist = Vector3.Distance(transform.position, signal.position);
         flashLight.intensity = (radius - dist).Map(min, top, min, maxIntensity);
  }

I know one of the mistakes is that (rad - dist) will be negative at some point so light intensity goes to 0 at some point instead of min

radius was supposed to be what it sounds like, a distance within the light works well but right now I don't know how to exactly implement it, as it is in this moment, the light starts to decrease right after the radius but it does it a little bit fast and it goes completely dark afterwards because of the negative number

Right now, I would want light to decrease as it gets away from the signal position

I've also tried doing something like

 intensity = maxIntensity / dist;

but it changes way too fast, I want it to be slower

 intensity = maxIntensity / dist.Map(minIntensity, upperIntensity, minIntensity, maxIntensity);

Tried that, it is slower than before but still goes down way too fast

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avatar image andrew-lukasik · Apr 15, 2021 at 12:50 PM 0
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 flashLight.intensity = Mathf.Lerp( $$anonymous$$Intensity, maxIntensity , Mathf.Clamp01(dist/radius) );

And if you want full control over it's intensity you may want to use AnimationCurve instead.

Btw.: If this code starts to appear in Profiler window - make sure it's not executed for object outside of camera view.

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