Motion trails?

[EdwardMartinIII]

Hiya!

I have a solid layer, to which I've applied a Particle Playground simulation. I've pointed the gun 90 degrees and things operate as I expect, with my particles coming out and then falling down (I have gravity). This is good -- it's supposed to look like a waterfall.

What I'd like is to have a loooong motion blur (say, 20 pixels) on each particle. I can apply an actual motion blur, but it doesn't blur 'em nearly as much as I would like. When I try a directional blur, that, of course, only works in one predefined direction.

Any ideas?

If I just throw a bunch of keyframes in there (with the direction-blur angle monkeyed with as they go over the edge), I get an effect that looks like 20-pixel sticks going over a waterfall. I'd like the lines to follow the curve of the particles. (I guess I could also add blur-length variables to these tight-curve keyframes such that as the particles go over the curve, their blur length shortens -- oooooh, that seems like a hack).

On a slightly related note, can gravity effect foam? I tried making a waterfall of tiny bubbles, but they just blew all over the screen -- I couldn't get them to "fall".

Cheers,


Edward

"Cut a hole in the door. Hang a flap. Criminy, why didn't I think of this earlier?!" -- inventor of the cat door

 

[scrambled2]

Hey try out the echo plug in that comes with after effects or the boris fx plug in called 'trails" they will do the trick for you.

 

[EdwardMartinIII]

Echo seems to work for single layer type animation, but I want to echo a stream of particles, such that they look more like worms.

Hm, I can use motion blur, but it requires that my particles accelerate after they leave the gun.

Cheers,


Edward

"Cut a hole in the door. Hang a flap. Criminy, why didn't I think of this earlier?!" -- inventor of the cat door

 

[johnnytheboy]

you could awalys try building the waterfall sequences as an uncompressed avi w alpha, re-import the file and then apply the echo filter.

john

 

[EdwardMartinIII]

Ah, I solved the problem by using Particle Playground. I used many layers, each with a different layer map, plus one layer that had craploads of little dots. It looks enough like a waterfall for me!

That is a tasty idea, though... Thanks!

Cheers,

Edward

"Cut a hole in the door. Hang a flap. Criminy, why didn't I think of this earlier?!" -- inventor of the cat door