LineRenderer: how to draw line intersections?

Question

I need to draw good looking line intersection. Like this: alt text

I understand how to draw such a line with LineRenderer. I should use a custom texture: alt text

But I do not know how to draw good-looking lines intersection without ugly overlapping.

Is it possible to do it in Unity?

Answer 1

Answer by andrew-lukasik · Jan 29 at 11:51 PM

One way of doing this is multi-pass shaders.

Here, for example:

pass #1 draws black fill
pass #2 uses ZWrite Off BlendOp Max to mix the the overlapping b&w textures together.

But this is not an universal solution and works fine with very specific grayscale textures. That being said - other variants can be figured out too (given both time and shader knowledge).

alt text

screenshot-2022-01-30-004736.gif (24.9 kB)

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LineRenderer: how to draw line intersections?

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