From: Bart Bruininks (
Date: Wed Apr 17 2019 - 06:02:46 CDT

> Hello dear VMDers,
> I am currently working at the Molecular Dynamics lab of Groningen (the
> Martini lab) and we are testing the new visualization node with VMD
> 1.9.4.x. Most things are working just fine and we are exploring the
> possibility of the P6000RTX cards. However, we already have very reasonable
> real time interactive ray-tracing on the V100 cards using the AVX
> acceleration (15 fps for 10 million atoms with AO and shadows and quicksurf
> all). During the testing of the node I ran into an unusual problem. The
> rasterized 'quick' rendering which VMD uses when you want to quickly look
> at your system and the default display, runs at a much, much much lower fps
> (0.3) than the interactive ray-tracing (15). Actually, if I could also
> change the frame and the lighting positions, I see no use in not having the
> option to make the interactive ray-tracing my default display. I was
> wondering if you guys thought about this and if there is an explanation as
> to why the ray-tracing rendering is faster than the rasterization, and if
> so why are we even still using the rasterization?
> Cheers,
> Bart Bruininks