[mapserver-users] How to render mapserver with openGL

[ElPer]

Hi
I read that apache hasn't a DISPLAY environment variable, so I add in
apache2.conf "SetEnv DISPLAY :0".
But now I get the following error:

<?xml version='1.0' encoding="ISO-8859-1" standalone="no" ?>
<!DOCTYPE ServiceExceptionReport SYSTEM
"http://schemas.opengis.net/wms/1.1.1/exception_1_1_1.dtd">
<ServiceExceptionReport version="1.1.1">
<ServiceException>
msDrawMap(): Image handling error. Unable to initialize image.
OglContext::init(): Renderer error. XOpenDisplay() failed.
</ServiceException>
</ServiceExceptionReport>

On an openGL turoial page I found a code wich also uses the method
XOpenDisplay. 
When I run this code on the same maschine I haven't any problems.

Has anybody an idea why the mapserver code doesn't work?



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