[Chimera-users] Rendering solid objects and POVRAY

[Tom Goddard]

Hi Mario,

   This is a limitation.  The solid style volume display is not exported 
by Chimera to povray.  I think povray supports volumetric rendering

     http://local.wasp.uwa.edu.au/~pbourke/miscellaneous/df3/

but we do not export the needed data.

   I don't know if povray would be able to lessen the pixelation 
artifacts.  They come from the volume data voxel size.  You could 
minimize those artifacts by resampling your volume on a finer grid, 
displaying in Chimera, and using the non-povray Chimera image save.  
Here is some info about how to do that resampling in Chimera

     
http://www.cgl.ucsf.edu/chimera/tutorials/volumetour/volumetour.html#resample

Those instructions talk about resampling on a rotated grid, but you can 
just leave the grid unrotated.

     Tom

> Hi,
>
> I am trying to render an image that includes a difference map density
> displayed as a solid object. When I try to get the image directly from
> the screen it shows patterns of pixelation. I then tried POVRAY and the
> solid object data does not show up. Is there anything that I am missing?
>
> Thanks
>