> "And" <49341109@ntnu.edu.tw> wrote:
>> "Bruno Cabasson" <bru### [at] cabassoncom> wrote:
>>> "And" <49341109@ntnu.edu.tw> wrote:
>>>> Alain Martel <kua### [at] videotronca> wrote:

>>>>>> Your cloud do have some great properties. Although it is unexpected simple(the
>>>>>> pov-code). The fluffy appearance is what I want. And the coverage is moderate.
>>>>>> But in fact the real geometry shows the top and bottom are truncated by the
>>>>>> boundary(800m~1200m). I will think how to solve this in the future, but if you
>>>>>> have idea I think it will be nice.
>>>>>>
>>>>>
>>>>> You may use a planar pattern to hide that. Just scale and translate it
>>>>> properly, and add a map or use an alternate wave type to control how it
>>>>> need to fade near the container's edges.
>>>>
>>>> How do you combine these two(The original and the planar pattern)? I can't spend
>>>> time to try it right now, but I wish to look your code (even a simple example).
>>>
>>> I think the planar (or equivalent) pattern can be used as an additional density
>>> function (that will multiply with the main one). I did use this for some other
>>> clouscapes atempts.
>>
>>
>> Multiply is a straightforward idea that combine these functions. I have doubts
>> about it because it seem change the original pattern (unnatural) ....but I
>> hardly ever try it. You said that you have used it. Is the effect fine?
> 
> I once could get this, and IIRC, the truncation was mitigated with such a
> function. Alas, I lost the code after a USB stick corruption. But the principle
> seems OK, provided  the parameters are properly tweaked (tricky).
> 
> B.
> 
> 
> 

Lesson :
Backup !
NEVER EVER leave your code and ANY important file in only one location.
Backup !
Several partitions on a single drive is still only a single location.
Backup !

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