[Chimera-users] rna and set shadows commands

[Elaine Meng]

On Jan 9, 2014, at 12:07 PM, "pythonchemia Gazeta.pl" <pythonchemia at gazeta.pl> wrote:
> 
> Hello Elaine C. Meng
> 
> Thank you very much for your reply and sorry that I answer only now.
> When it comes to command rna  path and rna model  your tips helped me. :)
> Although I do not know how to define the path for the command operations rna duplex. : (
> 
> Unfortunately for me the system WinXP / Chimera 1.8 - 32bit shadows set command does not work. : (
> Chimera returns this message:
> 
> - Unable to turn on shadows (shadows not supported)
> 
> After opening the Chimera Reply log returns this message:
> 
> Disabled programs because the GPU and graphics driver bug
> you encountered while compiling a vertex shader.
> -------------------------------------------------- -----------
> 
> Maybe my graphics card is inappropriate?
> 
> The User's Guide about the Build Structure writes that the helical DNA / RNA (not yet Implemented )
> and this option is disabled.
> 
> Sincerely, Janusz Grabowski

Hi Janusz,
The message suggests your computer can't do the shadows.  It might help to update your graphics driver, but I don't know for certain.  However, other "set" options should work,  for example:

set bgColor white

As mentioned in the "rna duplex" description, the path file is created using the command "rna path":
<http://www.rbvi.ucsf.edu/chimera/docs/UsersGuide/midas/rna.html#duplex>
<http://www.rbvi.ucsf.edu/chimera/docs/UsersGuide/midas/rna.html#path>

Also, as mentioned in an earlier message you have to get a daily build (version 1.9), also available from our download page, to use the "helical DNA/RNA" option in Build Structure.
<http://plato.cgl.ucsf.edu/pipermail/chimera-users/2013-December/009497.html>

It is recommended to send chimera questions to chimera-users at cgl.ucsf.edu instead of to me directly.
Thanks,
Elaine