# The extension GL\_OES\_matrix\_palette is unsupported

**URL:** https://forums.imgtec.com/t/the-extension-gl-oes-matrix-palette-is-unsupported/999
**Category:** PowerVR Insider
**Created:** [February 11, 2011, 5:33am UTC](https://forums.imgtec.com/t/the-extension-gl-oes-matrix-palette-is-unsupported/999 "2011-02-11T05:33:16Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![igor-melnikov](https://avatars.discourse-cdn.com/v4/letter/i/e9bcb4/32.png) [@igor-melnikov](https://forums.imgtec.com/u/igor-melnikov)
#### Post date: [February 11, 2011, 5:33am UTC](https://forums.imgtec.com/t/the-extension-gl-oes-matrix-palette-is-unsupported/999/1 "2011-02-11T05:33:16Z")

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Dear IMG team,

For some reason I cannot run any demos in my Windows 7 environment which require GL\_OES\_matrix\_palette support.

Always getting same error:  
ERROR: The extension GL\_OES\_matrix\_palette is unsupported.

Although any of them perfectly works on my Webos device.

I am using Khronos OpenGL ES 1.1 SDK for Webos + Visual Studio 2010.

After checking one demo's project properties I found that it uses glext.h file from Palm PDK directory which doesn't contain anything about&nbsp;GL\_OES\_matrix\_palette. And the right glext.h is located at ......BuildsOGLESIncludeGLES  
Although both Palm PDK and&nbsp;......BuildsOGLESIncludeGLES are included into project as additional directories.

as an examples of this demo could be 11\_MatrixPalette.

Is there any solution for that problem?

Thank you!

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### Author: ![Scott](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.imgtec.com/scott/32/256_2.png) [@Scott](https://forums.imgtec.com/u/Scott)
#### Post date: [February 11, 2011, 3:11pm UTC](https://forums.imgtec.com/t/the-extension-gl-oes-matrix-palette-is-unsupported/999/2 "2011-02-11T15:11:18Z")

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igor.melnikov wrote:

Is there any solution for that problem?
  

  

&nbsp;
  

I'm afraid not. The emulation that comes with the Palm PDK doesn't support it. If you would like to&nbsp;develop your OGLES app on Windows you could use our OGLES PC Emulation SDK (available from [https://www.imgtec.com/powervr/insider/sdkdownloads/](https://www.imgtec.com/powervr/insider/sdkdownloads/))&nbsp;which does support the GL\_OES\_matrix\_palette extension.
  

&nbsp;

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### Author: ![igor-melnikov](https://avatars.discourse-cdn.com/v4/letter/i/e9bcb4/32.png) [@igor-melnikov](https://forums.imgtec.com/u/igor-melnikov)
#### Post date: [February 14, 2011, 5:35am UTC](https://forums.imgtec.com/t/the-extension-gl-oes-matrix-palette-is-unsupported/999/3 "2011-02-14T05:35:13Z")

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Thank you Scott,

Installing PC Emulation SDK solved my problems and I am able now to continue development in my Windows environment.