0 Replies Latest reply: Apr 30, 2010 9:37 PM by tjhb RSS

    Photoshop CS5 on Windows XP x64

    tjhb Community Member

      OpenGL is disabled by default, even with an ideal graphics card and driver. An optional registry patch to enable it is apparently in the works. See http://kb2.adobe.com/cps/405/kb405064.html.

       

      If you want to enable OpenGL now, there are two choices. Both at your own risk.

       

      (a) Use modified versions of the registry patch that came with CS4. http://www.adobe.com/support/downloads/detail.jsp?ftpID=4056

       

      You just need to edit the patch(es), replacing [HKEY_CURRENT_USER\Software\Adobe\Photoshop\11.0] with [...\12.0]. But Adobe (in the first link above) says not to do this.

       

      (b) Make your own registry patch. It should read as follows. Give it the file extension .reg and Apply it, then relaunch Photoshop.

       

      Windows Registry Editor Version 5.00

       

      [HKEY_CURRENT_USER\Software\Adobe\Photoshop\12.0]
      "AllowGLXP64"=dword:00000001

       

      The second route enables only Basic OpenGL features, which is no doubt what Adobe intends. The former route allows Normal and Advanced OpenGL features to be enabled, which is perhaps why they don't recommend it.