Matchbox shader builder

Maybe someone here can give me a hint.
I was trying to build a shader, but the shaderbuilder kept failing, giving me this error:

ERROR : Compiling shaders requires a valid Display

I thought something was wrong with my shader, but tried building one of the examples in /matchbox/shaders/EXAMPLES/ and get the same.
can’t really find any info using google.
i’m on a mac.

Try doing export DISPLAY=:0 in the terminal first, then running shader_builder with your arguments and see if that gets you anywhere.

Thanks. Will give it a try.

Perfect. Thanks.