From: Tristan Croll (
Date: Wed Feb 11 2015 - 05:15:19 CST

Hi there,

I have a few minor rendering-related issues/suggestions in VMD 1.9.2:

- If I have an isosurface visualised in the default point representation and switch to GLSL rendermode, every point becomes a VERY large sphere and the system slows to a crawl.

- When a wireframe is rendered in Tachyon the lines are of course replaced by thin cylinders. This works out nicely in the CPU-only Tachyon (particularly if I use a transparent material, yielding a nicely unobtrusive mesh), but the cylinder diameter is much larger in Tachyon-OptiX. Is it possible to shrink this, or is this one of the trade-offs that allows the renderer to be so blazingly fast?

- When using the interactive renderer, closing the rendering window with the mouse rather than pressing Esc or q crashes VMD.

- I think it would be awesome if the interactive renderer had an option to render the scene at some multiple of the screen resolution, for when poster-quality images are needed.