# libgles\_cm.dll missing extensions

**URL:** <https://forums.imgtec.com/t/libgles-cm-dll-missing-extensions/326>\
**Category:** PowerVR Insider\
**Tags:** pvrvframe\
**Created:** [April 14, 2009, 5:12am UTC](https://forums.imgtec.com/t/libgles-cm-dll-missing-extensions/326 "2009-04-14T05:12:32Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![digi123](https://avatars.discourse-cdn.com/v4/letter/d/ce7236/32.png) [@digi123](https://forums.imgtec.com/u/digi123)\
**Post date:** [April 14, 2009, 5:12am UTC](https://forums.imgtec.com/t/libgles-cm-dll-missing-extensions/326/1 "2009-04-14T05:12:32Z")

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I downloaded the newest version of the SDK and it seems like the libgles\_cm.dll is missing some extensions notably the GL\_IMG\_vertex\_program. I can’t run the OGLESChameleonMan anymore. The previous SDK version, OGLES-1.1\_WINDOWS\_PCEMULATION\_2.03.23.1162, worked perfectly fine. Is there something wrong with the new SDK? Frambuffer objects, GL\_OES\_framebuffer\_object, doesn’t seem to be available either.  
  
  
  
  
  
Thanks.

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**Author:** ![jacekc](https://avatars.discourse-cdn.com/v4/letter/j/ccd318/32.png) [@jacekc](https://forums.imgtec.com/u/jacekc)\
**Post date:** [April 15, 2009, 2:39pm UTC](https://forums.imgtec.com/t/libgles-cm-dll-missing-extensions/326/2 "2009-04-15T14:39:27Z")

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Hi,

Recent version of pcviewer supports hardware profiels that should match hardware platforms eg. SGX535 or MBXLITE. So for OGLES you need to edit pc\_viewer\_es1.cfg that should have been created  in the directory where you have got the pc emulation libraries that are used when you run OGLESChamelonMan. By default for OGLES MBXLITE is the active profile which does not have support for GL\_IMG\_vertex\_program. Change it to SGX535 or SupportAll. Examples of OGLES/OGLES2 configuraiton files and its usage are presented in PVRVFrame manual.

Hope it will help

Regards,