is there a way to debug the shader-code or access/view the variables???
thanks in advance!
m. no. not from within the effect editor.
but most situations can easily be debugged via output from the pixelshader. code your debugging messages as colors to the pixelshaders result.
to debug from the vertexshader you have to hand over variables via semantics to the pixelshader.
hope that is clear and helps.