As of Catalyst 5.3 ATI has upgraded the OpenGL in their drivers to version 2.0.
The OpenGL detection within GLScene does not detect this, thereby making it impossible to use GLScene with said driver from ATI.
Workaround Open the file 'glscene\Source\Base\OpenGL1x.pas' (If you have the latest version of GLScene).
Find this line: GL_VERSION_1_1:=(minorVersion>=1)
Replace with: GL_VERSION_1_1:=(minorVersion>=1) or (majorVersion=2);
Uninstall GLScene in Delphi, recompile GLScene package and finally reinstall GLScene in Delphi.
Result: GLScene works again, at least until version 3.x of OpenGL :-)
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As of Catalyst 5.3 ATI has upgraded the OpenGL in their drivers to version 2.0.
The OpenGL detection within GLScene does not detect this, thereby making it impossible to use GLScene with said driver from ATI.
Workaround
Open the file 'glscene\Source\Base\OpenGL1x.pas' (If you have the latest version of GLScene).
Find this line:
GL_VERSION_1_1:=(minorVersion>=1)
Replace with:
GL_VERSION_1_1:=(minorVersion>=1) or (majorVersion=2);
Uninstall GLScene in Delphi, recompile GLScene package and finally reinstall GLScene in Delphi.
Result: GLScene works again, at least until version 3.x of OpenGL :-)