Re: Possible bug regarding Zoom feature in Breve 2.1b Swarm models

On Jan 19, 2005, at 10:25 AM, Ted Phillips wrote:

> In the windows version, Zoom with F2-left mouse works well in the 
> various
> demo files, except for the demos in the Swarm folder where there is no
> obvious effect in real time; if the Swarm demo is space-bar stopped, 
> Zoom
> works on the paused image, but then goes right back to its original 
> position
> when the Swarm demo is resumed.  This problem is in the files in the 
> Swarm
> demo folder; TerrainSwarm in the Terrain-Demos folder works fine 
> zoom-wise.

The Swarm demos use a programatic camera control which updates the zoom
automatically at each iteration step.  So while the simulation is 
running,
the zoom is calculated and set automatically.  Though this isn't clear 
to
the user trying to move the camera, it is in fact the correct behavior.

> Also, the new SwarmEvolve seems to run considerably slower than the old
> swarmevolve-1.0.tz.    thanks for an increasingly impressive project!

Unfortunately, this is also the correct behavior.  A bug in the Push
language implementation used in breve 2.0 prevented some (in fact, many)
callback instructions from being run.  The result was faster simulation,
but potentially incorrect behaviors!

- jon klein

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