suppose we have:
1. polygon A
2. a sphere, the primitive type of which is polygon, its frequency is 10, and its center is located at the centroid of polygon A
3. some geometries around polygon A as obstruction
task:
1. animate shooting a group of particles simultaniously: the number of particles is equal to the total number of the triangle polygons on the sphere surface, and each particle is shooting from the centroid of polygon A towards the centroid of one of the triangle polygons on the sphere surface
2. those particles hit the obstruction geometry surface along the way will stop and stay where they meet the obstruction
3. those that hit no obstruction will keep moving outward and when they hit the sphere they will stop and stay at where they meet the sphere surface.
Can anybody help to advise on how to create this simple animation?
Thanks!