Hi,
Look here: http://www.youtube.com/watch?v=fKs-tzKYUbg
...in my project i used 4 boxes which are hit by a ball that have attach 4 particles(different) and 4 even on contact as in video... so exist a faster way to use less particles and even on contact?... eg, you link every boxes to a script
that start the correct particle on the boxes... (changing realtime particle with a script, on a different boxes), this will be more easy...
Look here: http://www.youtube.com/watch?v=fKs-tzKYUbg
...in my project i used 4 boxes which are hit by a ball that have attach 4 particles(different) and 4 even on contact as in video... so exist a faster way to use less particles and even on contact?... eg, you link every boxes to a script
that start the correct particle on the boxes... (changing realtime particle with a script, on a different boxes), this will be more easy...