Hi Hernando, Slow rotation of surfaces could mean your surface is simply big. Is it faster in an older Chimera? What are the Chimera versions and PDB identifiers where there is a difference? Do you have multisampling on (Favorites / Viewing Controls / Effects)? Chimera 1.2540 also uses an optimization called vertex buffer objects that produces a 2-3x speedup on most graphics cards. But it could be slower on old cards. What graphics card and driver are you using? Chimera menu Help / Report a Bug... will include that info in the description. Tom hsosa@aecom.yu.edu wrote:
Hi Elaine,
The problem does not happen all the time. Sometimes I can display surfaces from the pdbs that cause problems. However, after displaying surfaces from these files, running chimera (trying to rotate or move the molecules) becomes very slow.
This is the error message I get when failing to display surfaces:
C:\Program Files\Chimera\bin\mscalc.exe 1.400000 2.000000 1 Calculation of some surface components failed (code 5). Falling back to single-component calculation. C:\Program Files\Chimera\bin\mscalc.exe 1.400000 2.000000 0 Surface calculation failed, mscalc returned code 5
Two pdb files that I've been having problems with are 1JFF and 2P4N.
Thanks
Hernando