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Noise() help
Hey all, just followed dan ebberts tutorial on using hte noise() function. Was wondering if somebody could go through and comment the code for me so i can better understand how it works. I have a good understanding of programming, just not the commands used in AFX!
cheers.
numRows = 10;
numCols = 10;
xyCompress = 200;
speedCompress = 1;
amplitude = 100;row = Math.floor((index – 1)/numCols);
col = (index – 1)%numCols;
x = col*width + width/2;
y = row*height + height/2;
xOffset = (this_comp.width – numCols*width)/2;
yOffset = (this_comp.height – numRows*height)/2;z = amplitude*noise([x/xyCompress,y/xyCompress,time/speedCompress]);
[x,y,z] + [xOffset,yOffset,0]
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3 Replies
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Think of noise() as a field of values waiting to be mined:
you feed it a value, or a position (2d or 3d), and it gives you a pseudo-random number.The field never changes: you’ll always get the same values from the same co
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Thanks Filip, I couldn’t have explained it better myself. 🙂
Dan
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cheers dude i got a better idea of whats going on now, i shall re read and digest some more!!!
cheers
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