Author Topic: Very slow 3D startup  (Read 7804 times)

sanewcomb

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Very slow 3D startup
« on: June 26, 2011, 08:19:39 PM »
Hi Scott,

Haven't used this feature much recently so I don't know when it started happening, but the current beta is extremely slow displaying the 3D view, even when it is showing a small area with regular 3D settings. It used to pop up instantly (though don't remember what TF version that was). It has been slow for some number of versions now. Any ideas?

Nvidia 9600 GT
275.33 drivers (June 2011)
XP 32 bit SP3
AMD 5050e, about 50% cpu load while waiting

TF 4.21 beta
~92,000 vertices
2.0 texture detail
bilinear
download/cache

Thanks,

Steve

Offsides

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Re: Very slow 3D startup
« Reply #1 on: June 26, 2011, 08:29:00 PM »
Scott,

I have to second this one.  I haven't spoken up about it because of all the tampering I've been doing to TF and it's environment, thinking it might be something I've done.  I'd be interested to know if there are some users who have seen NO change.

Bill

ScottMorris

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Re: Very slow 3D startup
« Reply #2 on: June 27, 2011, 09:12:48 AM »
Thanks guys.  So once the 3D image comes up it moves/rotates quickly, it's just slow to come up at first, right?  And while it is waiting it's just showing the hourglass and the original 2d map mode, right?

It does seem a bit slow to me when using higher "texture detail" settings -- especially at 4.0.  Then it's fast once it loads up.  I'll have a look at it, though not much has changed in the 3D code recently.
Scott Morris - founder and co-author of TopoFusion
email: smorris@topofusion.com

Offsides

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Re: Very slow 3D startup
« Reply #3 on: June 27, 2011, 08:15:39 PM »
Scott,

That's it, exactly; slow to "load", normal to rotate, tilt, and pan.

Bill

sanewcomb

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Re: Very slow 3D startup
« Reply #4 on: June 28, 2011, 08:05:13 AM »
Mine is somewhat different.

It will take 6-10 seconds to load up and the program is unresponsive. The progress bar doesn't show much and is only on the screen a bit if it does.

After it's loaded it delays again with hourglass for 2-3 seconds.

If you move off the end of the map it's the same as starting 3D up.

Even tried low monitor resolutions like 1280x1024 and although delays were shorter, still on the order of 4-8 seconds.

But you have identified the culprit. If I turn the texture detail to 1 problem solved. Instantly displays at all the settings I can through it at. I tried to see what difference this setting makes and I'm have a hard time seeing it. Maybe it's because I usually have the Tileset Preference at around 25% of full scale bar.

Steve

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Re: Very slow 3D startup
« Reply #5 on: June 28, 2011, 08:47:21 AM »
Well, shucks, nothing can be that easy.  These *are* computers, after all...

The Texture setting set to one worked for me too.  Not sure how that got tweaked as I've never fiddled with the 3D settings, that I can remember.  Could the default have changed during a recent upgrade?

Must be Scott's fault...

Bill.

ScottMorris

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Re: Very slow 3D startup
« Reply #6 on: July 06, 2011, 03:42:04 PM »
Definitely my fault!  There was something pretty dumb in there, introduced just a couple versions back - 4.11.

Fixed it in the current beta, 4.22, out now.
Scott Morris - founder and co-author of TopoFusion
email: smorris@topofusion.com