I want to create this feeling of led strips. When using just luminant textures, the whole file gets overflown with weird spots and sparkles, so this is not an option. So I need to use line or rectangle lights. The problem with lines is sometimes its either too thick or it shines to all sides, so I really need thin long rectangles.
And then I get this problem, I have this more often and is really annoying. Any clue how to fix this or is this just a bug?
To clarify the image: the light source (rectangle) is 3 meters long and about 17 cm away from the wall, but the result is just super small, like it is only 50 cm long.
