LineNodeMaterial uv() & positionGeometry are relative to the segments not the line

[Makio64]

Description

In LineNodeMaterial, uv() and positionGeometry values are relative to the "instance/segment" of the line.
I expect both or at least one of them to return the position on the full line so it makes easy to make custom effect on the line.

Reproduction steps

1. this fiddle or code below

Code

	material.lineColorNode = vec3( positionGeometry.y ) // by instance
	material.lineColorNode = vec3( uv().y ) // by instance

Live example

https://jsfiddle.net/Makio64/snq84pke/8/

Screenshots

material.lineColorNode = vec3( positionGeometry.y ) // by instance

material.lineColorNode = vec3( uv().y ) // by instance

Version

r170

Device

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Browser

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OS

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