# Easiest way to make positive-Y axis go downward (without using scale)?

**URL:** <https://discourse.threejs.org/t/easiest-way-to-make-positive-y-axis-go-downward-without-using-scale/1333>\
**Category:** Questions\
**Tags:** coordinate-system\
**Created:** [December 3, 2017, 1:14am UTC](https://discourse.threejs.org/t/easiest-way-to-make-positive-y-axis-go-downward-without-using-scale/1333 "2017-12-03T01:14:36Z")\
**Posts on this page:** 1\
**Showing post:** 3

<div class="post-metadata">

**Author:** ![trusktr](https://yyz1.discourse-cdn.com/flex035/user_avatar/discourse.threejs.org/trusktr/32/13726_2.png) [@trusktr](https://discourse.threejs.org/u/trusktr)\
**Post date:** [December 4, 2017, 8:21pm UTC](https://discourse.threejs.org/t/easiest-way-to-make-positive-y-axis-go-downward-without-using-scale/1333/3 "2017-12-04T20:21:01Z")

</div>

That doesn’t seem to do anything. Here’s with `(0, 1, 0)`:

https://codepen.io/trusktr/embed/preview/aVMKXm?height=300&slug-hash=aVMKXm&default-tabs=js,result&host=https://codepen.io&embed-version=2

and here’s with `(0, -1, 0)`

https://codepen.io/trusktr/embed/preview/ZaPRPY?height=300&slug-hash=ZaPRPY&default-tabs=js,result&host=https://codepen.io&embed-version=2

In both cases, the light is positioned at `100` and in both cases the light appears in the same place rather than in the `(0, -1, 0)` case the light being closer to the bottom as I was expecting.

For reference, if that was doing what I was hoping for, it would look like this:

https://codepen.io/trusktr/embed/preview/ZaPRZG?height=300&slug-hash=ZaPRZG&default-tabs=js,result&host=https://codepen.io&embed-version=2

(I manually set light position to `-100`)

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