# 7 floats per scale animation frame in POD files?

**URL:** <https://forums.imgtec.com/t/7-floats-per-scale-animation-frame-in-pod-files/1430>\
**Category:** PowerVR Insider\
**Tags:** pvrshaman\
**Created:** [May 31, 2012, 3:58am UTC](https://forums.imgtec.com/t/7-floats-per-scale-animation-frame-in-pod-files/1430 "2012-05-31T03:58:52Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![buz](https://avatars.discourse-cdn.com/v4/letter/b/f4b2a3/32.png) [@buz](https://forums.imgtec.com/u/buz)\
**Post date:** [May 31, 2012, 3:58am UTC](https://forums.imgtec.com/t/7-floats-per-scale-animation-frame-in-pod-files/1430/1 "2012-05-31T03:58:52Z")

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Hi all. I'm just curious why the animated POD nodes have 7 floats for scaling per frame rather than 3 (simple scaling along x, y, and z axis)?  
SDK code never uses those 4 extra values, but I analyzed POD file of our skinned character and found out that those values are actually contains some data (usually numbers in [-1, 1] range, and sometimes just a bunch of zeros).  
Also, that character animation displayed incorrectly in PVRShaman - some body parts seems to be overstretched. But it works fine when i use "Export matrices" option.  
  
Sorry for my English.  
  
buz2012-05-31 06:02:18

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**Author:** ![aaron](https://avatars.discourse-cdn.com/v4/letter/a/e19adc/32.png) [@aaron](https://forums.imgtec.com/u/aaron)\
**Post date:** [July 2, 2012, 9:12am UTC](https://forums.imgtec.com/t/7-floats-per-scale-animation-frame-in-pod-files/1430/2 "2012-07-02T09:12:58Z")

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The extra values are a 3D vector for scale axis and a scalar scale angle. They were originally included in case they turned out to be useful, as a more complete representation of the original matrix. However, the newer option to export full matrices is even more complete and should be used rather than these 4 extra values.

  

Regards,

Aaron.