Dieter, Yes, there is a practical limit which depends on (1) the amount of RAM and (2) the operating system. For reasons I don't completely understand, PyMOL isn't able to get as much memory under Windows as under Linux or OSX on equivalent system.
There are some things you can do to simply the scene, depending on which representation you're using: For spheres: set cull_spheres,0 set sphere_quality,0 For sticks: set stick_quality,5 For cartoons: set cartoon_sampling, 3 When ray-tracing, lowering hash_max decreases memory usage at the cost of performance (and vice-versa). set hash_max, 70 Also, the most recent beta versions usage less memory when raytracing... http://delsci.com/beta http://delsci.com/macpymol I think 400k atoms is reasonable for 512 MB. Which virus structure file are you trying to render? Cheers, Warren > -----Original Message----- > From: pymol-users-ad...@lists.sourceforge.net > [mailto:pymol-users-ad...@lists.sourceforge.net] On Behalf Of > dieter blaas > Sent: Tuesday, February 24, 2004 10:52 PM > To: email@example.com > Subject: [PyMOL] Are there limits for the number of > coordinates accepted? > > When I tried to render a virus surface (about 400 000 > coordinates) using a PC with 512MB RAM Pymol crashed > immediately. Is there a limit for the number of coordinates > accepted? Do I have to decrease the resolution by some means? > Thanx, Dieter > > > ------------------------------------------------------- > SF.Net is sponsored by: Speed Start Your Linux Apps Now. > Build and deploy apps & Web services for Linux with a free > DVD software kit from IBM. Click Now! > http://ads.osdn.com/?ad_id=1356&alloc_id=3438&op=click > _______________________________________________ > PyMOL-users mailing list > PyMOLfirstname.lastname@example.org > https://lists.sourceforge.net/lists/listinfo/pymol-users >