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In povray.general, Stephen asked for a method to make a seamless patchwork
of height_fields (topic: Interlocking heightfields; May 11th). John
VanSickle was so kind to provide a couple of interesting macros. While
learning to use them, I made this simple test image consisting of 16
heightfields. I thought I could post it here, as info.
For more details, see:
http://news.povray.org/povray.general/thread/%3Cnkge24ll63d2pdoe3qr8kvg29bgf79sf63%404ax.com%3E/?mtop=273531
and scroll down to John's message.
Thomas
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On Mon, 19 May 2008 10:17:37 +0200, "Thomas de Groot"
<t.d### [at] inter nlDOTnet> wrote:
>For more details, see:
That looks really good, well done.
Too bad my new scene is all at sea. So I'm using your
TdG_RipplingWater material instead <g>
--
Regards
Stephen
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Thomas de Groot wrote:
> In povray.general, Stephen asked for a method to make a seamless patchwork
> of height_fields (topic: Interlocking heightfields; May 11th). John
> VanSickle was so kind to provide a couple of interesting macros. While
> learning to use them, I made this simple test image consisting of 16
> heightfields. I thought I could post it here, as info.
When I used these macros, I gave the height fields a high enough
resolution so that there was no need for any tricks with the normals.
There was no smoothing, and the texture applied to the height fields had
no normal component. To make the height fields rougher, I put more
roughness in the pigment used to generate the height fields, so that the
height fields really were rougher, instead of merely appearing to be.
Regards,
John
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"John VanSickle" <evi### [at] hotmail com> schreef in bericht
news:483166b3$1@news.povray.org...
> When I used these macros, I gave the height fields a high enough
> resolution so that there was no need for any tricks with the normals.
> There was no smoothing, and the texture applied to the height fields had
> no normal component. To make the height fields rougher, I put more
> roughness in the pigment used to generate the height fields, so that the
> height fields really were rougher, instead of merely appearing to be.
>
Yes, there are all kind of possibilities indeed to make the height_fields
look interesting. Thanks John, for your further suggestions, which I shall
certainly try out too.
Thomas
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...in particular, I overlooked that little parameter Test... :-)
Thomas
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"Thomas de Groot" <t.d### [at] inter nlDOTnet> schreef in bericht
news:48318cbe$1@news.povray.org...
> ...in particular, I overlooked that little parameter Test... :-)
>
> Thomas
>
>
...which altogether, leads finally to this.
Thomas
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Download 'JVS_HFpatchwork.jpg' (89 KB)
Preview of image 'JVS_HFpatchwork.jpg'
![JVS_HFpatchwork.jpg](/povray.binaries.images/attachment/%3C48327d7a%40news.povray.org%3E/JVS_HFpatchwork.jpg?ttop=443866&toff=3250&preview=1)
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Awesome!
;-)
Paolo
>Thomas de Groot wrote:
> "Thomas de Groot" <t.d### [at] inter nlDOTnet> schreef in bericht
> news:48318cbe$1@news.povray.org...
>> ...in particular, I overlooked that little parameter Test... :-)
>>
>> Thomas
>>
>>
>
> ...which altogether, leads finally to this.
>
> Thomas
>
>
>
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"Paolo Gibellini" <p.g### [at] gmail com> schreef in bericht
news:48342126$1@news.povray.org...
> Awesome!
> ;-)
> Paolo
This is just basic stuff as far as I am concerned. All the credit for the
real work should go to John!! :-)
Thomas
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Thomas de Groot wrote:
> "Paolo Gibellini" <p.g### [at] gmail com> schreef in bericht
> news:48342126$1@news.povray.org...
>> Awesome!
>> ;-)
>> Paolo
>
> This is just basic stuff as far as I am concerned. All the credit for the
> real work should go to John!! :-)
The macro may need tweaking. The rippling in the left-hand side of the
image appears to be an artifact.
Regards,
John
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"John VanSickle" <evi### [at] hotmail com> schreef in bericht
news:4835644f$1@news.povray.org...
> The macro may need tweaking. The rippling in the left-hand side of the
> image appears to be an artifact.
>
I have been wondering about that. It appears indeed in the close up height
field blocks.
Thomas
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