wave interferance

Hi!

i have 2 waves generated in GH, and i would like them to interfere, (like it's shown in the second picture).
This means that the altitude of a point on the interference surface is determined by the sum of the z-coordinates of the 2 initial wave surfaces in that XY plane coordinate.

how do you advise me to go about this?

one way is to make a horizontal grid of vertical lines that intersect the two initial wave surfaces, get the intersection points and generate a new point in the middle of the distance between the initial two. then make a new surface based on the newly generated points.

is there a simpler/more economical way of doing this?

thank you!
andrei

http://img37.imageshack.us/img37/2140/interfy.jpg
http://img199.imageshack.us/img199/8712/wavesculoare3d.jpg

(how ca i embed pictures in the post? it seems it doesn't work as in the usual forums, if i use the [URL .... URL] thingies, it just displays the text, not the image..)

Replies to This Discussion

Permalink Reply by Nick on October 1, 2011 at 6:02am

thanks for your replay, but in this definition there is no slider

Permalink Reply by Andrei Raducanu on October 1, 2011 at 7:23am

you have to input a slider where the start of the wave is, something like that. think about it. what parameter loops through values when the waves move...

Permalink Reply by Nick on October 1, 2011 at 11:14pm

I'm a newbie, I wish I knew where to put the slider~

Permalink Reply by Daniel Piker on October 2, 2011 at 3:11am

Try changing the equation in the FxN components to:

sin(t+((x-a)^2+(y-b)^2)^.5)

You'll need to give it a new "t" input using the input manager from right clicking the component

then connect your slider to t

Permalink Reply by Nick on October 2, 2011 at 8:16am

Thanks daniel, I can't believe I did it, just one step before success, first of all, the image from the sequence of the animation looks so rough with wireframe but yours looks like a rendered animation, any way to improve it?

another question , the default waving "field" is a square, is there anyway I can change it into other shape and size??