> Something I've been playing with for a while now (current status: a macro
> that creates individual clouds, with parameters for shape and shading;
aim:
> a system to create complete skyscapes automatically given just the time of
> day, with options for full control over every aspect...).

Ah, nice to see you back to work, instead of making logos. ;)

Great work on the clouds, Chris. Are they 3D objects or flat? Are they
media? Could you give a general explanation of how you're doing this, and
the current capabilities and limitations? Thanks.

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Chris Colefax wrote in message <39d00b83@news.povray.org>...
>Something I've been playing with for a while now (current status: a macro
>that creates individual clouds, with parameters for shape and shading; aim:
>a system to create complete skyscapes automatically given just the time of
>day, with options for full control over every aspect...).


Please!  No photographs!

<envious grin>
Mark

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This has certainly come a long way, Chris! I can't wait to play with your
new toys! :)

Grim

"Chris Colefax" <chr### [at] tagpovrayorg> wrote in message
news:39d00b83@news.povray.org...
> Something I've been playing with for a while now (current status: a macro
> that creates individual clouds, with parameters for shape and shading;
aim:
> a system to create complete skyscapes automatically given just the time of
> day, with options for full control over every aspect...).
>
>
>

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These are excellent, some of the best I've seen. I for one look forward to
the final product. BTW which version of Pov are you using is it pre or post
Nathan's changes to noise?

Mick

"Chris Colefax" <chr### [at] tagpovrayorg> wrote in message
news:39d00b83@news.povray.org...
> Something I've been playing with for a while now (current status: a macro
> that creates individual clouds, with parameters for shape and shading;
aim:
> a system to create complete skyscapes automatically given just the time of
> day, with options for full control over every aspect...).
>
>
>

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Bob Hughes wrote:
> Well this certainly fits as a cumulus type. "humilis" is something I've
> never heard of, and if that were just a added word please forgive my
> ignorance  :-|

`cumulus humilis' means `humble heap'

-- 
Anton Sherwood  --  br0### [at] p0b0xcom  --  http://ogre.nu/

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> I neglected to keep stats for the rendering, but a re-render at 400x300
took
> about 3 1/2 minutes on my old P166.  Anti-aliasing shouldn't generally be
> necessary with the technique I've used, and even if it is turned on for
> other objects it shouldn't slow down the clouds too much...

How on earth is that possible?! I mean--a render time of a couple of
minutes. And in what version of Povray can you turn off aa for individual
objects?

:O

~simenkv.

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i think he meant turn on aa for the scene because of other objects in
the scene that would look crappy without aa turned on.

Simen Kvaal wrote:
> 
> > I neglected to keep stats for the rendering, but a re-render at 400x300
> took
> > about 3 1/2 minutes on my old P166.  Anti-aliasing shouldn't generally be
> > necessary with the technique I've used, and even if it is turned on for
> > other objects it shouldn't slow down the clouds too much...
> 
> How on earth is that possible?! I mean--a render time of a couple of
> minutes. And in what version of Povray can you turn off aa for individual
> objects?
> 
> :O
> 
> ~simenkv.

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Bob Hughes <per### [at] aolcom?subject=PoV-News:> wrote:
> Well this certainly fits as a cumulus type. "humilis" is something I've
> never heard of, and if that were just a added word please forgive my
> ignorance  :-|

Humilis = humble (in Latin, of course!), referring to the low height of the
clouds compared to the length of their bases.  Currently the macro lets you
specify both this height and the flatness of the base compared to the top of
the cloud, so all sorts of shapes and sizes are possible.

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:-)
Wonderful image.
Will you allow for clouds that are very dark and brooding, yet highly
detailed?

thanks,
ian

Chris Colefax wrote in message <39d00b83@news.povray.org>...
>Something I've been playing with for a while now (current status: a >macro
that creates individual clouds, with parameters for shape and >shading; aim:
a system to create complete skyscapes automatically >given just the time of
day, with options for full control over every >aspect...).

Post a reply to this message

Chris Colefax wrote:
> 
> Something I've been playing with for a while now (current status: a macro
> that creates individual clouds, with parameters for shape and shading; aim:
> a system to create complete skyscapes automatically given just the time of
> day, with options for full control over every aspect...).
> 

They look very good, but i expect they are not 3D and not casting shadows on the
ground.  (Although i hope i'm wrong :-)

Nice thing to add would be controlling the cloud's size/density or other
properties by a pattern (gradient/marble)

Christoph

--
Christoph Hormann <chr### [at] gmxde>
Homepage: http://www.schunter.etc.tu-bs.de/~chris/

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