April 2015 - Page 5 of 10

import pymel.core as pm;
from math import *

pm.newFile( force=True );

fps = 30;
animationLengthInSeconds = 10;
totalFrames = fps * animationLengthInSeconds;
numberOfBounces = 3.0;
startingAmplitude = 5.0;
PI = 3.14159;
groundY = 1.0;

obj = pm.polySphere(name="MySphere");

pm.autoKeyframe( state = True );
for currentFrame in range(1, totalFrames+1):
    pm.currentTime(currentFrame, edit=True );
    pm.setKeyframe();
   
    t = float(currentFrame) / totalFrames;   
    currentAmplitude = (1.0-t)*startingAmplitude;   
   
    y = groundY + abs( sin( (t * PI) * numberOfBounces ) * currentAmplitude );
       
    pm.move( 0,y,0, obj );

import pymel.core as pm;

from math import *

pm.newFile( force=True );

fps = 30;

animationLengthInSeconds = 10;

totalFrames = fps * animationLengthInSeconds;

numberOfBounces = 3.0;

startingAmplitude = 5.0;

PI = 3.14159;

groundY = 1.0;

obj = pm.polySphere(name="MySphere");

pm.autoKeyframe( state = True );

for currentFrame in range(1, totalFrames+1):

pm.currentTime(currentFrame, edit=True );

pm.setKeyframe();

t = float(currentFrame) / totalFrames;

currentAmplitude = (1.0-t)*startingAmplitude;

y = groundY + abs( sin( (t * PI) * numberOfBounces ) * currentAmplitude );

pm.move( 0,y,0, obj );

Video:

xdPixel

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