David Megginson <[EMAIL PROTECTED]> said:

> Jim Wilson writes:
>
> That's strange.  One possible problem is the propeller animations --
> they use a while loop to get down to 360 degrees, and if the prop has
> done many rotations, it could take a while.  I'll have to do some
> testing.  How fast is your CPU?

750MHZ (on a 100mhz buss).

> 
>  > Note that I tried this without any animation enabled and the result was the
>  > same.  Higher frame rate but more breaks in the sound (in fact more silence 
>  > than sound).
> 
> Strange -- the extra code should be skipped when there are no animated
> parts.
> 

It almost seems like there is something different being done in the models
(not animation related) that ends up putting a greater load on the CPU.  Maybe
its  happening in opengl because something isn't supported directly by the
hardware or its driver?  Remember I've got the famous voodoo3.  I thought
maybe it had something to do with the oversize texture, but reducing that
using gimp didn't help either.

The weird thing is that the more complex the model, the less trouble there
seems to be.  I've tried just about everything we've got, and the
X15-landing.ac is better than most, and that big rocket launcher thing (makes
an interesting aircraft model) flies without any interference in the sound.  I
also have an ac3d model of a 310b (the Navy U-3A one) that's quite complex
(400k ac file) and that has no problem either...or rather the sound has no
problem when using it.

Best,

Jim

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