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 22-12-2004, 07:33 PM #1 powernemo Registered User     Join Date: Jan 2003 Posts: 57 Thanks: 0 Thanked 0 Times in 0 Posts Changing radiusPP Hi there, I have this simply excpression but i can't figure what's wrong: Runtime Expression Before Dynamics mapped on radiusPP of my ParticleShape2 (blobby Surface) here's : float \$raggio=.05; if(\$raggio<.2) { \$raggio=.05+(time/20); particleShape2.radiusPP=\$raggio; } i want my blobbies start from .05 size and grow up 'til .2 but in some case blobbies grow time after time without stopping in other case they won't grow. What's wrong? What's the correct implementation? thnx
 28-12-2004, 02:55 PM #2 Alan Moderator     Join Date: Oct 2002 Location: London, UK Posts: 2,800 Thanks: 0 Thanked 5 Times in 5 Posts ok you need to do this first: create a creation expression first (in the same way you made a runtime one) but do this: //this is your start value particleShape2.radiusPP == 0.05; then change your runtime expression to something like this: //get the value of the radiusPP float \$raggio = particleShape1.radiusPP; //compare it to the max value you want them to grow to if(\$raggio < 1) { //add a value on this can be anything you want it to be \$raggio+=0.001; //set the value of the radiusPP particleShape1.radiusPP=\$raggio; } That should work. :bandit: Alan __________________ Technical Director - Framestore Currently working on: Your Highness IMDB
 29-12-2004, 02:14 AM #3 powernemo Registered User     Join Date: Jan 2003 Posts: 57 Thanks: 0 Thanked 0 Times in 0 Posts Yeah! Thanx alot man!!! It works great!!!:tup:
 29-12-2004, 12:26 PM #4 Alan Moderator     Join Date: Oct 2002 Location: London, UK Posts: 2,800 Thanks: 0 Thanked 5 Times in 5 Posts No problem :bandit: Alan __________________ Technical Director - Framestore Currently working on: Your Highness IMDB

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