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I am awesome. (FAO: Nerds)
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| Joss Weatherby |
Posted this on the BIS forums (ArmA2 forums)... It is a demonstration of my radio frequency propogation alogrithm being map with signal values represented as color over the physical terrain map.
Still needs some tweaks, but I think its looking really ing good. It also sounds awesome in game.
This is an AN/PRC-119 to AN/PRC-119 link test.
You can click the image for a massive view of it. :)
| quote: | I posted this in the A2TS release thread, but since our version is still a work in progress I figured I'd post it here too... for extra views and to maybe expose people who haven't heard about this project yet. :)
Below is a signal test visualized for A2TS3. Brighter red is better signal, darker/fainter red is lower quality signal. This is signal quality data that is generated from a transmitter replicating a AN/PRC-119 to an AN/PRC-119. Samples are taken every 50 meters and form a point to point from the red dot on the airport runway to every sample point and determines the link quality via the A2TS3 algorithms. This is done in real time during game!
This gives a general overview of what the radio quality simulation will be like. As you move from the brighter to darker/fainter areas your audio quality goes down, being more over taken by noise and distortion. If the transmitter is able to increase his output power he will be able to transmit further. The same applies if he goes higher and gains a better line of sight, or the reciever gets a better line of sight. In short our aim is to get radios that operate the same way as they do in real life.
http://raceriv.com/arma2/test_signal_map.jpg
Jaynus is writing a better app to visualize the data we get from our tuning tests. :) |
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| EddieZilker |
| Actually - This is pretty ing cool. Did you account for cloud cover? |
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| Comrade Stalin |
COR version.
-_- |
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| Joss Weatherby |
| quote: | Originally posted by EddieZilker
Actually - This is pretty ing cool. Did you account for cloud cover? |
Atmospherics are not handled at the moment. Planning on adding cloud and rain cover factors in the future. :)
If anyone is interested in the algorithms, its a combination of the normal FSPL algo for distance, and the ITU Terrain Loss Model for roughly estimating the terrain interferance... This is coupled with the numbers for those coming from a 3D line of sight determination, as well some some magic I due with sampling the terrain every x number of meters and getting samples of terrain clutter (trees, buildings, etc) if they would possibly interfere with the signal.
This is all calculated out using a normal link budget calculation based off the computed signal and the real life properties of the radio sets being used. :) |
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| Marcus Summers |
Let me ask you a question.
Who the would want the inconvenience of frequency range in a video game?
This is ing stupid. If I want this bull, I'll go outside and drive a few miles so I can listen to my favourite radio station turn into static. |
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| Joss Weatherby |
| quote: | Originally posted by Marcus Summers
Let me ask you a question.
Who the would want the inconvenience of frequency range in a video game?
This is ing stupid. If I want this bull, I'll go outside and drive a few miles so I can listen to my favourite radio station turn into static. |
Because its more of a simulator... Thats like asking "who wants wind patterns simulated in a flight simulator!?"
This is a civilian version of an engine that is used for real life military training by the USMC, USN, US Army, UK MoD, ADF (Austrialian Defence Forces) and a number of other large military forces. Its not a CoD run and gun boring game. :p |
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| Marcus Summers |
| quote: | Originally posted by Joss Weatherby
Because its more of a simulator... Thats like asking "who wants wind patterns simulated in a flight simulator!?"
This is a civilian version of an engine that is used for real life military training by the USMC, USN, US Army, UK MoD, ADF (Austrialian Defence Forces) and a number of other large military forces. Its not a CoD run and gun boring game. :p |
simulators are pointless. i bet you work for raydon. |
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| Joss Weatherby |
| quote: | Originally posted by Marcus Summers
simulators are pointless. i bet you work for raydon. |
Raytheon? No. But Boeing has expressed early interest in this. We are working on potential military products using this technology. :) |
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| DJ Mikey Mike |
| I don't understand what that means. Will it result in me getting porn quicker? |
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| Schadenfreude |
| please explain in vagina. |
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| Marcus Summers |
| quote: | Originally posted by Joss Weatherby
Raytheon? No. But Boeing has expressed early interest in this. We are working on potential military products using this technology. :) |
No. Raydon. I said what I meant.
Simulators suck and don't train soldiers. They end up just ing around on them and crashing vehicles in convoy simulators, etc. |
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| zoogla |
| quote: | Originally posted by Joss Weatherby
interferance |
if u were really a nerd, you'd know how to spell. |
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