Re: [Visualpython-users] 200,000 point objects

[Symion <kn...@ip...>]

Bruce Sherwood wrote:
> Interesting. On a Del XPS M1330 laptop with NVIDIA 8400M GS graphics 
> performance is pretty good, with decent rotate and zoom. When I set 
> scene.show_rendertime = True, I get this report:
>
> cycle: 200 render: 50
>
> This means that it takes 50 ms to render the scene, and there are 200 ms 
> between renders. This behavior is a bit strange, in that Visual attempts 
> to balance computation and rendering, so with a render time of 50 ms I 
> would have expected a cycle time of 100 ms (50 ms computation, 50 ms 
> render).
>
> Bruce Sherwood
>
> Symion wrote:
>   
>> Hi there,
>>     Here is another program dealing with large numbers of objects 
>> (200,000 points)!
>>
>> Source: Shell_2.py <http://home.iprimus.com.au/knoware/webpage/Shell_2.py>
>>
>> This is a Stellar Anatomy type demonstration.
>>
>> Symion
>>     
>
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Hi there,
    I have found that by carefully selecting rate(x), the response 
performance can be improved.
A faster response can be achieved by changing self.type=1, this selects 
the square shape for points instead of round.
However if you change self.size=1 then each point size depends on the 
reciprocal of the distance from the center,
that really slows things down, but gives a very pleasing globular effect.

I'm left wondering what else I can use it for? Maybe a Brownian motion 
generator to get the whole thing boiling!