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On 4-3-2018 15:51, Kenneth wrote:
> Thomas de Groot <tho### [at] degroot org> wrote:
>
>>>>
>>>> It is a bit like your airbrush.
>>>>
>>>> --
>>>> Thomas
>>>
>>> I'd like to see.
>>>
>>
>>
http://news.povray.org/povray.binaries.images/thread/%3C48295282%40news.povray.org%3E/
>>
>
> I had forgotten that! :-O Thanks for the reminder.
:-)
>
> BTW, re: the discussion there of 'bending the slopes of height_fields': It can
> be done in an alternate way now, using POV-Ray's 'blend gamma' feature-- i.e.,
> by purposely changing the gamma of the image that's used to make the HF. That
> effectively changes the otherwise 'linear' slope of HF contours to more of a
> curve. For example, HF mountains made this way look more natural to my eye--
> like the mountain's slopes have naturally eroded. (There's also a HF difference
> between images SAVED at different gamma values, for the same reason-- 1.0 being
> a linear slope, 2.2 being more of a curve.)
>
Indeed. That is something I never really used purposefully but which you
do well to remind me of. Thanks!
I shall make a small test scene. A way for me to remember stuff.
--
Thomas
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