I’d like to create some particles representing leaves on a lawn that I can use in a physics simulation. I’ve created a simple plane, added a particle system to it, set it to emit 1000 particles with a start and end frame to 1 and a lifetime equal to the number of frames in my animation. I also set the field weight for Gravity to 0. I made no other changes, and by default the velocity is listed at 0. None the less, when I play the animation, the particles rise slowly into the air. How do I get these particles to spawn with no velocity?
Try setting Normal to zero as well. Other wise the facing normal direction of the emitter will contribute to the velocity.
Ah. I was presuming the normal was a direction, not a scalar.