Re: [PyMOL] Fog and ray-tracing

2003-12-05 Thread Robert Campbell 
Hi Loic,

* Loic BERTRAND  [2003-12-03 18:42] wrote:
> 
> I want to generate a ray-traced image with a white background and a 
> very strong fog effect. I tried to play around with the ray_trace_fog, 
> ray_trace_fog_start and fog parameters but could not manage to do it. 
> The image generated through the interface before ray-tracing is way 
> clearer than the one after.

I'm not sure what you mean by "clearer". I always use a white background
and I have no trouble getting a very strong fog effect in ray-traced
images. I just move the rear clipping plane forward enough. I think I'm
using the default values of:

ray_trace_fog  -1
ray_trace_fog_start 0.35

> Is there any solution to improve this?

Could you put a couple of images on a web page somewhere to show what
you mean?
 
Cheers,
Rob
-- 
Robert L. Campbell, Ph.D. 
Senior Research Associatephone: 613-533-6821
Dept. of Biochemistry, Queen's University, fax: 613-533-2497
Kingston, ON K7L 3N6  Canada   http://adelie.biochem.queensu.ca/~rlc
PGP Fingerprint: 9B49 3D3F A489 05DC B35C  8E33 F238 A8F5 F635 C0E2

[PyMOL] Fog and ray-tracing

2003-12-03 Thread Loic BERTRAND 

Hi,

I want to generate a ray-traced image with a white background and a 
very strong fog effect. I tried to play around with the ray_trace_fog, 
ray_trace_fog_start and fog parameters but could not manage to do it. 
The image generated through the interface before ray-tracing is way 
clearer than the one after.


Is there any solution to improve this?

Thank you very much,

Loïc