# Papervision glitch

**URL:** <https://forum.kirupa.com/t/papervision-glitch/289608>\
**Category:** flash\
**Created:** [June 2, 2009, 1:41pm UTC](https://forum.kirupa.com/t/papervision-glitch/289608 "2009-06-02T13:41:01Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![jonito](https://avatars.discourse-cdn.com/v4/letter/j/59ef9b/32.png) [@jonito](https://forum.kirupa.com/u/jonito)\
**Post date:** [June 2, 2009, 1:41pm UTC](https://forum.kirupa.com/t/papervision-glitch/289608/1 "2009-06-02T13:41:01Z")

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Hi there  
I’m fooling around with papervision and i’m getting this strange glitch kind of rendering.  
Basically i’m just creating alot of bars with a FlatShadeMaterial. All of them have the same light. Then i’m positioning them one next to another to form a bigger bar. Finally, each bar is displaced randomly in z position.

i’ve attached a screenshot showing the glitch.  
does anybody have any idea what could cause this kind of behaviour?  
thanks!