Drawing a line with greater detail

Question

I understand how to draw a line using the godot draw_line function. However, what I am wondering is is there a why of making that line more details. For example by adding depth by shading the sides slightly, as if to make it look like a tube. A good example of the detail I would like to replicate are the lines you would use to connect nodes in the node editor in blender?

Thanks in advance!

Comments

there is similar functionality, but it will be with 3.0
https://github.com/godotengine/godot/pull/7352

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You can use shaders over lines drawn by _draw, but I have no idea how to get things like the UV or position (modifying the CanvasItem rect, maybe?).

May be easier to simulate a line with a polygon.

Answer 1

An easy solution that works really well (i use it myself) is to draw two lines on top of each other.

The trick is to set the opacity on both lines at ½ the final opacity, fx 0,5 if you want a solid line, and making one line a bit bigger that the other.

draw_line(from_pos, to_pos, Color8(255, 255, 255, 255/2), 4)
draw_line(from_pos, to_pos, Color8(255, 255, 255, 255/2), 3)

Before and after example from my game (Code above is just an example, not exactly what i use):

Before

After

I am not 100% sure this technique can work for your exact needs but i thought i would throw it out there anyway ;)