Friday, April 5, 2013

Changing Image Size in Tachyon in VMD

I always forget how to change the image size for rending molecular images in VMD using the (external) Tachyon rendering engine, so I thought I'd write down the steps here:

In the TCL console, get the aspect ratio correct for the image. So, for example to make a nice 1920x1080 image, we'll make the view at half of that:

 
display resize 960 540

Now, add simply add -res 1920 1080 to the end of the render command in the file render controls window. Here's an example of one of my render commands:
 
"$HOME/VMD/tachyon_LINUXAMD64" -aasamples 12 %s -format TARGA -o %s.tga  -res 1920 1080

Here's the result of one my renders:

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4 comments:

  1. Raphael TrevizaniAugust 21, 2013 at 10:31 AM

    Nice picture. What are the graphical representation specifications (material, coloring method, etc)?

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  2. Andrew WhiteAugust 21, 2013 at 10:50 AM

    Thank you! CPK is rep. Coloring was by atom. I changed the default atom colors (dark gray hydrogen, gray carbon, red oxygen, blue nitrogen). The material is AOChalky with an outline added.

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  3. nscerqueiraJune 6, 2016 at 9:46 AM

    how did you add the outline ?

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  4. Andrew WhiteJune 6, 2016 at 12:50 PM

    VMD Graphics Menu -> Materials -> Outline. Make sure you're modifying the material which you select in your representation. That's to give the atoms/bonds the dark outline.

    If you're referring to the whole image outline (the drop shadow effect), that's CSS.

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