In article <Xns### [at] netplexaussieorg>,
 ingo <ing### [at] tagpovrayorg> wrote:

> Is the pattern infinite?

It's infinite, but not very interesting far away from the points. As you 
can see in the examples I posted, it turns into uniform rays.


> A thought, triggerd by your pattern: In the crackle pattern, would it be 
> possible to make the position of the centeroids controlable by some 
> function? 

It certainly would be, though slower.


> I'm thinking of something like, put all the centeroids in the centre and 
> than give them a random deviation from there with a certain (Gauss) 
> distribution. 

I'm not sure what exactly you're thinking, but you pretty closely 
describe the first 2 images...just random points, more dense in the 
center.


> Or, make the position of the centeroid in the box depend on another 
> pattern. Imagine a wood pattern, in the light parts of it the centeroids 
> are "more random" where as in the dark parts they are very close to the 
> centre of the box. That would give bands of more and less uniform 
> crackles.
> Or, with the same wood pattern, in the lighter area's the centeroids are 
> closer to the sides of the box and in the darker area they ar closer to 
> the center.

I don't think this would have the effect you expect...you would just get 
a strong grid pattern where the points were less random. Varying point 
density would be more interesting. Or point importance...maybe if offset 
were controlled by a pattern...

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