Posts by jabba

1) Message boards : Number crunching : Visualisation application (Message 797) Posted 12 Aug 2004 by jabba Post: Hello, Tolu! I hope I didn't sound negative with the "Spaceball" comment --- in fact I like it a lot as Finland (and Skandinavia) doesn't stretch out of shape to a frightening size unlike in 2D projections. Although 2D projection has that positive thing that one sees by one look the whole planet's temperature development without needing to rotate. Perhaps later one could "open" up the 3D sphere to a 2D projection with a nice animation and the other way around? Well, maybe I got a bit carried away with the animation, but 2D projection might be alternative. Another idea: if somebody has to fall back to software rendering or the default libraries, it might be nice to have simplified map. For example only the country borders could be selected and perhaps one could filter them a little bit to have fewer vertices (was this the right word to describe the lines there?) and so a bit lighter rendering. Even better if one could choose which countries' districts are shown in the map. With the current it would be nice to have something to point the direction to sun. That could be sun in the space, some arrow pointing from the sun's direction or both. One can of course tell where sun is supposed to be by checking the clock running on the screen. One living somewhere further away from Greenwitch longitude might have figuring from where the sun shines if the model clock is in UTC. A bit more: Zooming the Earth in and out makes the lighting intensity to change: further away Earth seems to be lit more and closer it's bit darker. It's bit distracting to me, but nothing too serious though. Perhaps others don't care... Anyways, viz is a good starting point and you guys have done great job! Cheers, Jani
2) Message boards : Number crunching : Visualisation application (Message 791) Posted 12 Aug 2004 by jabba Post: Hello! Planet64Bit.de, Delkster, thanks for the tip! After renaming libGL* files things got rather smoother. Although the viz takes up the 50% as earlier. It seems that at least Linux people (I guess, Mac OS X as a Unix/OpenGL -platform too) are out of luck with the visualization CPU usage. At least for now. I suppose, Carl & Tolu didn't bother too much with synchronizing the model and visualization apps as producer / consumer and the latter is reading the data in a busy loop. But they did notice that it was just a preliminary version, so I think something good is coming this way later on :) By the way, do Windows people have the same kind of a "spaceball" visualization or something more sophisticated and does it take half the CPU time? Can any Mac owner confirm or deny my guess? Cheers, Jani
3) Message boards : Number crunching : Visualisation application (Message 722) Posted 11 Aug 2004 by jabba Post: I wonder if my model is bit whacky or if it is the Linux version of viz that has some problems with the colouring. See http://www.ee.oulu.fi/~jabba/Climate.png There's of course the mysterious white patches in Africa, but also close to poles the area is white. In fact, no greenish colour at all anywhere. Just yellow, orange, red and blue (see south pole http://www.ee.oulu.fi/~jabba/Climate2.png) Note also that the Earth can be zoomed to overlap the texts, which is not probably intended to happen. Linux SuSE 8.2, NVIDIA XFree86 Driver 1.0-5336 Wed Jan 14 18:30:46 PST 2004, XFree86 Version 4.3.0. NVIDIA GPU detected as: GeForce4 Ti 4200. Do other Linux users have similar problems? Do others have viz take up to 50% CPU-time?
4) Message boards : Number crunching : Client performance (Message 427) Posted 8 Aug 2004 by jabba Post: AMD T-bred @ 1804MHz, 256kB L2$, (XP2200+ ?) 768MB @ 133MHz SDRAM (KT133A chipset), Linux 2.4.20 4.87s/TS By the way. Running the ./viz takes one half CPU-time?! Is it really that heavy application? If so, one would be adviced to check the nice graphics only once and then... :) Cheers, Jani