On 27-11-2017 18:29, Sven Littkowski wrote:
> On 27.11.2017 10:15, Bald Eagle wrote:
>> I'm pretty sure that unless people are generating scene files with a 3rd party
>> application (Pose-Ray, etc), then the standard Left-Handed coordinate system
>> should be the default.
>> I'm not sure what coordinate system you're using - or why.
> 
> Hi. Well, in my coordinate system, I am using the "Y" axis for the
> height. But the cloud used a different axis for its height. I had to
> rotate. :-)
> 
> On 27.11.2017 10:15, Bald Eagle wrote:
>> Actually defining a COLOR based on density would require a much more complex
>> coding, involving functions, and perhaps a 3-color separation scheme such as
>> Stephen uses for his DF3's
> 
> I just don't know. I never usually work with media and density. Always
> only with regular shapes and differences only. But I believe, I need
> such density effect here.
> 

Density is best to be used for what it is made for: density. So, the 
colour used in a density's colour_map are shades of grey from black to 
white.

If you want the media to be coloured, then that can be achieved within 
the emission/absorption/scattering parameters. However, clouds by 
themselves are always white/grey (water vapour, remember?). Adding 
colour makes no sense, except if you want to show alien additives like 
pollution or ashes (volcanoes).

-- 
Thomas

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