On 24-12-2014 16:29, jhu wrote:
> Looks great!
>
Thanks!

Thomas

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Le 23/12/2014 14:15, Thomas de Groot a écrit :
> Time for a little wip.
>
> Following this thread:
>
>
http://news.povray.org/povray.binaries.images/thread/%3Cweb.52c1498885bcdecd90cbcd420@news.povray.org%3E/
>
>
> I let myself be inspired by the photograph by Bill's daughter and the
> engraving by MC Escher.
>
> Height_field entirely based on a GIMP image; Red Oak leaves scanned from
> RL in the neighbourhood.
>
> The challenge for me is now to get the positioning of the leaves better
> in relation to the height_field and - where overlapping - with each
> other. Not sure yet how I am going to solve that...
>
> Thomas
>
Nice start, and happy Christmas.

-- 
Lionel
<b>Do not judge my words, judge my actions.</b>

---
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protection avast! Antivirus est active.
http://www.avast.com

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Better but still not perfect. The control of the leaf orientation is 
tricky especially were there are sudden jumps in the height_field. For 
trace() I use a more basic/smooth height_field and calculate the 
orientation from two points but still the transformations are not equal 
for all leaves.

Thomas

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Attachments:
Download 'puddle_03.jpg' (176 KB)

Preview of image 'puddle_03.jpg'

Another variation (better?).

Thomas

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Attachments:
Download 'puddle_04.jpg' (238 KB)

Preview of image 'puddle_04.jpg'

That's looking really good, Thomas.

I think that having some of the leaves partially covered in water or sand adds a
degree of realism, especially since the tire tracks imply disturbed ground.

Have you thought about placing your leaves like a tripod, using a 3-point
orientation method?  That might help get them to lay correctly.

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Le 14-12-27 07:10, Thomas de Groot a écrit :
> Better but still not perfect. The control of the leaf orientation is
> tricky especially were there are sudden jumps in the height_field. For
> trace() I use a more basic/smooth height_field and calculate the
> orientation from two points but still the transformations are not equal
> for all leaves.
>
> Thomas
>

For the few leaves that still intersect with the ground, it looks 
somewhat like there are holes/breakages in them, whitch is normal and 
add some credibility.


Alain

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On 27-12-2014 17:23, Bald Eagle wrote:
> That's looking really good, Thomas.

Thank you indeed.

>
> I think that having some of the leaves partially covered in water or sand adds a
> degree of realism, especially since the tire tracks imply disturbed ground.

Yes, that was also my judgement :-)

>
> Have you thought about placing your leaves like a tripod, using a 3-point
> orientation method?  That might help get them to lay correctly.

Out of laziness I must confess I did not use three point, only two and I 
agree that I should do that. In addition to a few other things that is 
going to be my next step.

Thomas

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On 27-12-2014 21:17, Alain wrote:
> For the few leaves that still intersect with the ground, it looks
> somewhat like there are holes/breakages in them, whitch is normal and
> add some credibility.

Indeed. I am not too concerned about them presently. Still, I shall seek 
some improvements.

Thomas

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Now, with a couple of additions, the meaning of the scene completely 
changes.

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Attachments:
Download 'puddle_06.jpg' (226 KB)

Preview of image 'puddle_06.jpg'

On 12/30/2014 07:11 AM, Thomas de Groot wrote:
> Now, with a couple of additions, the meaning of the scene completely
> changes.
>
Clever idea & neatly done! I'll have to let my daughter know her puddle 
snapshot has led to another Pov-Ray image. :-)

Bill P.

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