Hi Anna, the "ray_volume" setting is really just a hack or workaround to blend the OpenGL rendered volume with the ray traced image of the rest of the scene, and it has it's limitations. My recommendation is not to ray trace at all, but instead take advantage of our high resolution OpenGL shader rendering which mimics ray tracing very close. Only shadows are not supported. You can render into a larger image with "draw 1000,1000".
Example: # mimic ray tracing (most of these are already default) set use_shaders set ray_shadow, 0 set stick_as_cylinders set ribbon_as_cylinders set line_as_cylinders set nonbonded_as_cylinders # load example data fetch 1rx1, mol, async=0 fetch 1rx1, map, async=0, type=2fofc volume vol, map show cartoon show sticks, organic orient organic clip slab, 12 # increase volume quality set volume_layers, 1000 # capture high resolution image draw 2000, 2000 png draw.png Hope that helps. Cheers, Thomas On 20 Aug 2014, at 03:56, Diller, Anna, Dr. <[email protected]> wrote: > Dear pymol-users, > > the volume representation works splendid for me, > when I ray an image with the command ray the volume representation stays as > indicated on the screen prior to rendering, which is perfect, > however when I ray an image with the command e.g ray 1000,1000 or ray > 2000,2000 the volume representation changes and appears enlarged ? > > Has anybody had the same issue ? > > Thanks a lot for your response! > > With kind regards, > Anna > > Helmholtz Zentrum München > Deutsches Forschungszentrum für Gesundheit und Umwelt (GmbH) > Ingolstädter Landstr. 1 > 85764 Neuherberg > www.helmholtz-muenchen.de > Aufsichtsratsvorsitzende: MinDir´in Bärbel Brumme-Bothe > Geschäftsführer: Prof. Dr. Günther Wess, Dr. Nikolaus Blum, Dr. Alfons Enhsen > Registergericht: Amtsgericht München HRB 6466 > USt-IdNr: DE 129521671 -- Thomas Holder PyMOL Developer Schrödinger, Inc. ------------------------------------------------------------------------------ Slashdot TV. Video for Nerds. Stuff that matters. http://tv.slashdot.org/ _______________________________________________ PyMOL-users mailing list ([email protected]) Info Page: https://lists.sourceforge.net/lists/listinfo/pymol-users Archives: http://www.mail-archive.com/[email protected]
