# Extra rotation added while using Proscene
**URL:** https://discourse.processing.org/t/extra-rotation-added-while-using-proscene/14036
**Category:** Libraries
**Created:** [September 18, 2019, 12:04am UTC](https://discourse.processing.org/t/extra-rotation-added-while-using-proscene/14036 "2019-09-18T00:04:54Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@simCoder](https://discourse.processing.org/u/simCoder)
#### Post date: [September 18, 2019, 12:04am UTC](https://discourse.processing.org/t/extra-rotation-added-while-using-proscene/14036/1 "2019-09-18T00:04:54Z")
Hello all! I am currently using the Proscene library to control 3D panning, rotation, and zooming, and one thing I noticed is that when rotating a scene by pressing on the left mouse button while dragging the mouse (or by pressing the scroll-wheel while dragging the mouse), there is a little bit of extra rotation that is added on at the end even after I’ve already stopped moving the mouse and released the mouse button.
Is there a way to make it so that there is no extra rotation added even after I’ve stopped moving the mouse or released the mouse button?
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### Author:  [@tony](https://discourse.processing.org/u/tony)
#### Post date: [September 19, 2019, 8:28pm UTC](https://discourse.processing.org/t/extra-rotation-added-while-using-proscene/14036/2 "2019-09-19T20:28:19Z")
Sorry in advance, I have no experience with Proscene, but my first guess is that they include a sort of “momentum” to make the drag-and-move experience smoother.
I’ve used the [peasycam library](http://mrfeinberg.com/peasycam/) in the past for drag-and-move 3D nav, and, given it’s barebones nature, it doesn’t have a “drift”. Maybe check that out?