> Redoing a scene I lost when my old PC went belly-up.
>
> It's an idea I have for a painting that I want to make. So now I first
> want to try and create a "photo" to paint from - with Pov-Ray :)
> I still need to add doors, windows, fire-escape and trash. Any
> suggestions on how to do these objects will be highly appreciated.
>
> I ran into memory problems with the isosurface bricks, so this is a
> mixture of isosurface and mesh bricks using Bill Pragnells mesh relief
> macro. I have 5 different mesh bricks, randomly mirrored and rotated,
> but I still get 3 of the same bricks in a row. Any ideas on how to get
> it more random?
>
> Also struggling with the tar texture. I'm trying to get the effect of
> old cracked tar. It's an isosurface using a pigment function.
>
>
> Suggestions, help and critique welcome.
>
> -Nekar Xenos-

Random don't mean that there is no repeating pattern.
If you want to reduce the succession, you can:
- Use another random seed.
- Add some slight texture changes: pigment and normals.
- Define one or two more bricks.

For the windows, as you are using individual bricks, remove the bricks 
in the window's openings. Turn the bricks protuding into the window 90 
degrees, or use some half bricks.

Old asphalt is much lighter, normaly, it's a relatively light gray.


Alain

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On Thu, 29 Apr 2010 04:45:04 +0200, Alain <aze### [at] qwertyorg> wrote:


>> Redoing a scene I lost when my old PC went belly-up.
>>
>> It's an idea I have for a painting that I want to make. So now I firs
t
>> want to try and create a "photo" to paint from - with Pov-Ray :)
>> I still need to add doors, windows, fire-escape and trash. Any
>> suggestions on how to do these objects will be highly appreciated.
>>
>> I ran into memory problems with the isosurface bricks, so this is a
>> mixture of isosurface and mesh bricks using Bill Pragnells mesh relie
f
>> macro. I have 5 different mesh bricks, randomly mirrored and rotated,

>> but I still get 3 of the same bricks in a row. Any ideas on how to ge
t
>> it more random?
>>
>> Also struggling with the tar texture. I'm trying to get the effect of

>> old cracked tar. It's an isosurface using a pigment function.
>>
>>
>> Suggestions, help and critique welcome.
>>
>> -Nekar Xenos-
>
> Random don't mean that there is no repeating pattern.
> If you want to reduce the succession, you can:
> - Use another random seed.
> - Add some slight texture changes: pigment and normals.
> - Define one or two more bricks.
>
> For the windows, as you are using individual bricks, remove the bricks
  

> in the window's openings. Turn the bricks protuding into the window 90
  

> degrees, or use some half bricks.
>
> Old asphalt is much lighter, normaly, it's a relatively light gray.
>
>
> Alain

Thanks Alain.

I see also now my code was a bit faulty as well. Now that I've fixed it 
 

up, there are no noticeable repeats.

Still working on that asphalt. When it looks believable, the cracks don'
t  

show, and vice versa...

-Nekar Xenos-

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"Nekar Xenos" <nek### [at] gmailcom> schreef in bericht 
news:op.vbuvk8xwufxv4h@xena...
.... I have 5 different mesh bricks, randomly mirrored and rotated, but
> I still get 3 of the same bricks in a row. Any ideas on how to get it more
> random?

Interestingly, bricks being made industrially, this may even happen in RL. 
In my previous house, there were several parts were you could trace the same 
pattern on the wall... With POV we try to do better than RL :-)

Nice work and interesting model for a painting.

Thomas

Post a reply to this message

On Thu, 29 Apr 2010 10:40:23 +0200, Thomas de Groot  
<tDOTdegroot@interdotnlanotherdotnet> wrote:

>
> "Nekar Xenos" <nek### [at] gmailcom> schreef in bericht
> news:op.vbuvk8xwufxv4h@xena...
> .... I have 5 different mesh bricks, randomly mirrored and rotated, but
>> I still get 3 of the same bricks in a row. Any ideas on how to get it  
>> more
>> random?
>
> Interestingly, bricks being made industrially, this may even happen in  
> RL.
> In my previous house, there were several parts were you could trace the  
> same
> pattern on the wall...

The bricklayers should use a different randomization algorithm ;->

> With POV we try to do better than RL :-)
>
> Nice work and interesting model for a painting.
>
> Thomas
>

Thanks :)

-Nekar Xenos-

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