VMD-L Mailing List

From: Roger Nadler (rnadler_at_us.es)
Date: Wed Mar 21 2012 - 12:20:50 CDT

Hi Axel, hi John,

Thank you very much for your suggestions. Now, this is what I am doing
and it works perfectly for me at the moment:

I change the RGB values in the color control window until I have what I
like and add the final values in the vmdrc for a random colorid which is
not in the list and give this newly defined colorid to the atom for
which I want that color:

color change rgb 540 0.09 0.70 0.07
color Element Ti 540

(As it is also described in Axel's tutorial).

Cheers,
Roger

On 21/03/12 17:34, John Stone wrote:
> Hi,
> At present, VMD doesn't allow you to set an arbitrary RGB color
> for an arbitrary color category item. Instead, you can set the RGB color
> for one of named color indices (or one of the color scale indices for
> that matter) and you can subsequently set the color that way.
> The color system in VMD was written to ensure highly efficient rendering,
> but that has limited flexibility somewhat. Since modern GPUs are capable
> of handling far more frequent color state changes without associated
> performance penalties, I have been planning on redesigning the color controls
> in VMD to allow arbitrary RGB colors in all places where one wants to assign
> a color. This is going to be something that shows up in a future release,
> as it requires a lot of changes to the OpenGL rendering code and also to
> the scene export modules in VMD. I will let people know when there is a
> test version of VMD that implements this feature, because I know it is
> important to many users.
>
> Cheers,
> John Stone
> vmd_at_ks.uiuc.edu
>
> On Mon, Mar 19, 2012 at 05:47:14PM +0100, Roger Nadler wrote:
>> I am trying to set a color via vmdrc. I successfully can do so by adding
>> for instance:
>> color Element Ti blue2
>> However, Id' like to set a color that is not in the list by adding
>> something like:
>> color Element Ti {0.25 0.57 0.0}
>> where the numbers indicate the rgb values, but so far I did not succeed.
>> Is there actually a way to do that? Also, I'd like to know if it would
>> be possible to define a new colorID which appears in the color controls
>> window under the name I've defined in vmdrc? Thank you very much for
>> your help.
>> Regards,
>> Roger
>>
>>