Thorsten

> > Not that we're  there yet
> 
> Heiko and Vivian, please try the following version and let me know if this
> improves anything. If possible, do all tests with the weather tile type
'Test'
> (that has no randomness in the cloud configuration selection, so it
delivers a
> fairly reproducable situation in terms of cloud count).
> 
> http://users.jyu.fi/~trenk/files/advanced_weather_v1.47.tgz
> 
> I've tested this in the default shading with the ufo in window mode
without
> expensive shaders running so that I got a high framerate. I've seen
> framerates of 65 fps with max frame delays of order 15 ms (which seems
> okay so far).
> 
> Every few seconds there was a prolonged frame of 30 ms (still within my
> design targets, but suspicious). I've tested the hypothesis that the only
loop
> not running per frame now causes this (the tile management loop) and
> switched it off - the problem persisted unchanged, so to my ability to
test
> this feature was not caused by any Nasal code running (it might still have
to
> do with Nasal overhead like GC or so, that I couldn't establish).
> 
> Every 30-40 seconds I had a freak-frame of 150 ms duration coming in. To
test
> what is going on here, I disabled all running Nasal code by clear/end -
the
> problem persisted. To my ability to test, this is also not caused by
running
> Nasal code but by something which I couldn't identify.
> 
> I've subsequently tested the visual impression of flying with an aircraft
rather
> than the ufo and took the Harrier for a spin through 6/8 cloud cover (one
of
> the low pressure scenarios). It certainly felt smooth to me, although the
> framerate and frame delay readings were a bit more jittery than with the
> ufo.
> 
> So, I'd like to know if that helps you as well and if we're on the right
track
> here.
> 
> (Even if this works fine, please do not commit yet, I am not 100% sure
that I
> didn't create an instability somewhere).
> 

Testing underway,

Vivian




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