Thanks, I did look at the v2_x3d page, the Meshlab was new to me, and works very well with Argyll gamut VRML files (also has a pretty user interface). It didn't seem to want to open any diagnostic testchart VRML files though (the error I always got was "File without a geometry"). Am 11.04.2014 14:23, schrieb Graeme Gill: > Have you looked at <http://ovrt.nist.gov/v2_x3d.html>, > or <http://meshlab.sourceforge.net/> ? -- Florian Höch