On 14-2-2018 9:16, Thomas de Groot wrote:
> On 13-2-2018 13:44, Thomas de Groot wrote:
>> On 13-2-2018 10:21, Jörg "Yadgar" Bleimann wrote:
>>> Hi(gh)!
>>>
>>> Meanwhile, I generated the first global physical maps of Whatmough 
>>> (see also my posting in p.b.a), starting with the terrain relief and 
>>> land/see distribution as shown in the animation (first image 
>>> attached)... as ocean depths and land heights were still too extreme 
>>> for an almost Earth-sized body, I tweaked the scaling factor of the 
>>> terrain function as well as the sea level (second image). But still 
>>> I'm not contented with the result, as low-lying land areas (dark and 
>>> light green) and shallow continental shelves (pale cyan) are by far 
>>> too narrow to look Earth-like. Which parameter(s) of the ridged_mf() 
>>> function do I have to change to achieve this?
>>>
>>> See you in Khyberspace!
>>>
>>> Yadgar
>>
>> I would say that the continental shelf width is ok; the land heights 
>> have a problem indeed.
>>
>> I may have a solution, but I need to delve deep into my (planetary) 
>> scene files, so patience.
>>
> 
> Sorry, no luck. I build my planets using a planetary image_map as 
> function. That is a different approach.
> 
> I keep looking for scenes where I might have used ridged_mf(); I know I 
> have, but it is a needle in a haystack of code...
> 

Maybe this is of help. Do you remember my Geomorph macro from about 10 
years ago? It models an isosurface landscape but the principles are 
identical for a planet as the same functions are used. If you do not 
have the macro, I attach here the latest version with the documentation. 
Both are compatible even if the macro versions mentioned in the docs are 
different. There is a short description of the ridged_mf function where 
the parameter 'offset' might be what you are looking for. Otherwise, I 
must say that Geomorph is a monster ;-)

I hope you can make sense of it and extract useful snippets for your 
project.

-- 
Thomas

Post a reply to this message

Attachments:
Download 'new winzip file.zip' (427 KB)