[Chimera-users] POV-Ray surface color

[Greg Couch]

Eric, export a surface mesh in the pov format and you'll see that the 
lines are converted to cylinders, so they are lit.  There is a 
disconnect between POV-ray's lighting model and Chimera's lighting 
model, so the highlights are not the same.  Maybe the meshes are 
shadowed?   In that case moving the light source to be more of a 
headlight would help.

    -- Greg

On 11/17/2020 11:49 AM, Eric Pettersen wrote:
> Hi Greg,
> 	I believe the problem is that the meshes are composed of lines, and the lines don't get lit properly by POVray, basically because they don't have normals.  You would probably have better success with semi-transparent solid surfaces than mesh surfaces.
>
> --Eric
>
> 	Eric Pettersen
> 	UCSF Computer Graphics Lab
>
>
>> On Nov 15, 2020, at 10:33 AM, Greg Williams <gregoryw at comcast.net> wrote:
>>
>>
>> I am rendering a two-submit protein, split, with different colored mesh surfaces on the subunits. If I render to an image with Chimera, the surfaces appear in the colors assigned. If I render with POV-Ray, both mesh surfaces render as black. I assigned the colors using MSMS surface attributes with color sources as "atoms", using the color well in the Component Atom Attributes panel.
>>
>> Where in the literature should I read to sort this out?
>>
>> Thanks!
>>
>>
>>
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