# Animation

**URL:** https://forums.imgtec.com/t/animation/1140
**Category:** PowerVR Insider
**Created:** [July 26, 2011, 6:34pm UTC](https://forums.imgtec.com/t/animation/1140 "2011-07-26T18:34:33Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![pascalv](https://avatars.discourse-cdn.com/v4/letter/p/6f9a4e/32.png) [@pascalv](https://forums.imgtec.com/u/pascalv)
#### Post date: [July 26, 2011, 6:34pm UTC](https://forums.imgtec.com/t/animation/1140/1 "2011-07-26T18:34:33Z")

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Hi,  
  
  
  
  
  
How to change the Transformation matrix.  
  
  
I am using the PowerVR sdk for IOS.  
  
  
  
  
  
Thanks  
  
  
Pascal.

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<div class="post-metadata">

### Author: ![pascalv](https://avatars.discourse-cdn.com/v4/letter/p/6f9a4e/32.png) [@pascalv](https://forums.imgtec.com/u/pascalv)
#### Post date: [July 26, 2011, 8:16pm UTC](https://forums.imgtec.com/t/animation/1140/2 "2011-07-26T20:16:13Z")

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I found the answer. This is what I did and let me know if it the good way.  
  
  
  
  
  
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;PVRTMATRIX r;  
  
  
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;PVRTMatrixIdentity®;  
  
  
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;PVRTMatrixRotationX(r, a);  
  
  
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
  
  
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;PVRTMATRIX\* anim = (PVRTMATRIX\*)pMesh-\>getNode()-\>pfAnimMatrix;  
  
  
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;PVRTMatrixMultiply(\*anim, r, \*anim);  
  
  
  
  
  
Pascal.

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<div class="post-metadata">

### Author: ![pascalv](https://avatars.discourse-cdn.com/v4/letter/p/6f9a4e/32.png) [@pascalv](https://forums.imgtec.com/u/pascalv)
#### Post date: [July 26, 2011, 8:17pm UTC](https://forums.imgtec.com/t/animation/1140/3 "2011-07-26T20:17:02Z")

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And also use GetWorldMatrixNoCache instead of GetWorldMatrix