# OGLES-1.1\_WINDOWS\_PCEMULATION\_2.05.25.0804 problem
**URL:** https://forums.imgtec.com/t/ogles-1-1-windows-pcemulation-2-05-25-0804-problem/456
**Category:** PowerVR Insider
**Tags:** pvrvframe
**Created:** [August 25, 2009, 6:08pm UTC](https://forums.imgtec.com/t/ogles-1-1-windows-pcemulation-2-05-25-0804-problem/456 "2009-08-25T18:08:39Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@warmi](https://forums.imgtec.com/u/warmi)
#### Post date: [August 25, 2009, 6:08pm UTC](https://forums.imgtec.com/t/ogles-1-1-windows-pcemulation-2-05-25-0804-problem/456/1 "2009-08-25T18:08:39Z")
It looks like with the latest SDK GL\_OES\_framebuffer\_object and GL\_OES\_mapbuffer extensions are no longer working.
I had no problem accessing GL\_OES\_framebuffer\_object under OGLES-1.1\_WINDOWS\_PCEMULATION\_2.04.24.0811 but it appears to be missing with the latest SDK ( also confirmed by looking at the new console log )
Is it a bug or perhaps I need to enable something ?
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### Author:  [@jacekc](https://forums.imgtec.com/u/jacekc)
#### Post date: [August 26, 2009, 10:07am UTC](https://forums.imgtec.com/t/ogles-1-1-windows-pcemulation-2-05-25-0804-problem/456/2 "2009-08-26T10:07:15Z")
Hi,
If you are running 2.5 SDK then it is likely that you can see PVRVFrame control window (small GUI), where you can toggle visiability of the Log. if this is so then please make log enable
and at beginning of it you can see (second line) , GL\_RENDER string being displayed. The hardware profile should be mentioned there. eg.
RENDERER: PoverVR PVRVFrame 5.1 [hardware profile] ....
where hardware profile is : SGX530 , MBXLite, MBXLite with VGPLite etc.
OES\_framebuffer is available for SGX530, SGX535 and generic profiles only . By default MBX with VGP is being set that do not support OES\_framebuffer extension as well.
If that is a case then change the profile in General Options (menu command: Options-\>General) to one of the mentioned profiels that support that extension.
The list of supported extensions is also displayed in Log in forth line: EXTENSIONS:....
You can find more detailed description of how PVRVFrame Control Window in PVRVFrame Manual.
Tell us if this helped
jacekc2009-08-26 12:07:45
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### Author:  [@warmi](https://forums.imgtec.com/u/warmi)
#### Post date: [August 26, 2009, 1:08pm UTC](https://forums.imgtec.com/t/ogles-1-1-windows-pcemulation-2-05-25-0804-problem/456/3 "2009-08-26T13:08:44Z")
Thanks … it worked fine.
Quick question … reading thru the docs , it seems that the OES\_mapbuffer extension doesn’t allow to read from the buffer and it can only be used for updates … is that correct ?
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### Author:  [@jacekc](https://forums.imgtec.com/u/jacekc)
#### Post date: [August 26, 2009, 1:18pm UTC](https://forums.imgtec.com/t/ogles-1-1-windows-pcemulation-2-05-25-0804-problem/456/4 "2009-08-26T13:18:29Z")
Yes this is correct that OES\_mapbuffer dosen't allow reading
jacekc2009-08-26 15:19:48