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Old 17-03-2009, 05:32 AM   #1
gputhige
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Default Radio Waves in Maya

Hi Guys,

I am back for one last help to complete my show reel. Could someone advice me on how to create Radio waves in Maya ? Some thing like what we see (only in cartoons) from the Radio towers beaming out at regular intervals in circular paths?

I tried using Dynamics - Omni emitter but not able to simulate the break in waves at regular intervals.

Thanks much

GP
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Old 17-03-2009, 11:12 AM   #2
jsprogg
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ok this might serve your purpose.
Create a poly torus and make it with quite few sub divisions (something like 30 - 40 ), then scale it's section radius to something like 0.01 so it more or less looks like a curve circle .With it selected go to dynamics and create a particle emitter (emit from object)and have it set to omni.In the emitter particle shape node set the lifspan mode to Constant and its lifespan to something like 0.5 depending on the size of particle ring you want, you might also have to play with the particle rate but i manged it with a setting of 20 per second.
Now you should have a ring of particles, with the particle selcted go up to fields and create a radial field.Move the radial field about 30 grid units away (depending on the size of your particle circle) but far enough for the length of your radio signal.Now in the radial field attributes play with the magnitude slider until the particle come toward the radial field and end when they meet, set the attenuation in your filed attributes to 0.1 and you should now have a cone of intermittant particle when you play your simulation.
If you want it animated you may have to render it out seperpartely and reverse animation since the the particles are traveling from the large cone down to a point but i think it will work out.

hope it is useful for your purpose .
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Last edited by jsprogg : 17-03-2009 at 11:17 AM.
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Old 17-03-2009, 11:39 AM   #3
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maybe you could key a circular ramp add an alpha... umm ...it would take some working out but i think it would be quicker for rendering if you are under such restrictions.
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Old 17-03-2009, 01:56 PM   #4
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Hi,
Thanks for the quick response and the step by step approach. This is very helpful and timely as I plan to finish this by today at any cost.

Rgds,

GP
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