Particles Behind Actor?

11clock

I'm trying to make a motion blur, but it looks bad because the blur isn't going behind the actor. How do I get the particles to spawn behind the actor?

gyroscope

Hi 11clock, paticles can't be put behind the actor that's using the particles behavior. So a workaround is to have an actor as your image over the top, with constrain x and y to particles actor used in it's Rules.

GamersRejoice

11clock said:
I'm trying to make a motion blur, but it looks bad because the blur isn't going behind the actor. How do I get the particles to spawn behind the actor?

This currently can't be done.

JeffreyShimane

I don't know if it's the most efficient/only way, but I create another actor whose only function is to spawn the particles and constrain this particles actor to the regular actor I want the particles to spawn behind. Of course, you need to make sure you put the particles actor below the regular actor in the layer list.

EDIT: Damn, too slow! Curse you, Gyro!

- Jeff

gyroscope

JeffreyShimane said:

EDIT: Damn, too slow! Curse you, Gyro!

- Jeff

Ha! :-)

mithrawept

You can't get particles to appear behind the actor but you could try a little trick. I have a yellow actor with an alpha cutout in the middle. Then a purple particle spawns with the blending set to additive. When the particle overlaps with the yellow it turns white and through the cutout the particle appears nice and purple. This gives the impression (of sorts) that the particle is behind. Making the particle to reduce in size also helps the effect.

Okay, not perfect but might work for you.