I'm wondering if you can auto-orient custom particles along the motion path. My emitter is directional, Y 90deg. I have negative gravity, so my particles shoot out the side, and drift upwards in a nice arc. Can I have my custom particles also rotate upwards?
There are a few ways...one is using the Motion Path feature under Physics / Air and using a light in AE and keyframing the path...but why not ask the guy that wrote the program (Peder Norrby) for specifics:
Pretty cool that the app creator answers questions freely without charging a "Support Contract" :)
>Can I have my custom particles also rotate upwards?
Nope. Particles always are oriented to towards the camera. They are merely sprites. There are a few tricks by using a camera in the custom particle pre-comp and syncing it with the motion, but that's as far as it goes. See graymachine.com on a tutorial for that.