CompuServe Messages

PMJI, << The program works by detecting collisions between individual objects in an animation. Once the collision is detected, the physical properties for the object take over. This can include elasticity, mass, velocity, or acceleration. >> 1) What about Friction, Spin, etc. ? 2) How are dynamic force vectors, etc. *defined* in 3DS/DMM ? 3) What forces are available (gravity, turbulence, etc.) ? 4) Are all forces fixed or variable ? 5) How are objects to be used in CD identified & bound ? 6) Are there trade-offs available wrt CD precision vs calculation speed, etc. ? 7) Does it only feature "rigid body" dynamics, or can colliding objects break apart, or deform each other due to the collision forces ? 8) How fast are the calculations ? (I'm aware this sort of thing is typically slow) 9) I assume that the routine can only operate on "normal" 3DS objects, rather than perhaps AXP-generated particles, etc. ? Thanks, BILL