This might have something to do with memory usage. I recently ran
a 100 frame animation of a rotating planet using a detailed image on
the surface. The render speed decay was *bad* and the program
exited after 22 frames. The memory recovery time lasted almost
1 minute. If I had my old system, I might understand, but I run
128 meg ram. Possibly the program does not reclaim memory after
each frame.

"Greg M. Johnson" wrote:

> Has the cause of render speed decay been identified as having your
> preview window open?  In Win98, will closing it solve the problem?
>
> I have an animation of 375 frames.   I am reading an INC file with 375 *
> 50 * 6 numbers, which are the positions and velocities of 50 actors.
> There are 1200 objects in the scene (50 actors' last 24 positions).  I
> left it render last night.  When I got to it this morning, on about the
> 75th frame, it was taking  7 minutes per frame to render!  I stopped it
> and started it again at the same frame: 7 second renders.  It did 100
> frames before I realised we had no milk in the house for breakfast!
>
> BTW, the parsing time was insignificantly different: constantly around 4
> seconds, due to my use of an INC file instead of recalculating the whole
> matrix for each frame. Thanks to John vS for tips...

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