Effect distance

#1
Hello
I created the effect of light that I placed on top of the building. Unfortunately, when I walk away (zoom out etc.), it disappears. In effect Radius is set to 1000. What should the light do not disappear?
Thanks for help
 
#2
If you need to have an effect, edit the effect texture mipmaps and make the smaller ones a lighter color, the smallest ones should be white.
 
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