explosion: howto?

schick · Post by **schick** » Sat Apr 10, 2004 2:07 pm

Hi there, i need a fancy explosion. I already have one that looks quite good using the particle emittor but it takes a lot of cpu power. Is there another way to implement such a cool looking explosion.

Maybe:

Draw some randomly positioned cubes (with a cool texture) and make them disapear slowly (make the transparent)?

Any other ideas, (source code highly wanted

)

Robomaniac · Post by **Robomaniac** » Sat Apr 10, 2004 2:16 pm

What emitter are you using? Cube or point (or another, i'm forgetting them right now)?

The way to do an efficient explosion, in my mind, would be to have a point emitter, and it chooses a random vector, and sets that as the emit angle for the direction. An even more efficient way would be to program a sphere emitter. I don't know if spheral capabilities are in irrlicht, but that would be the ideal solution.

Just my $0.02

thesmileman · Post by **thesmileman** » Sat Apr 10, 2004 3:21 pm

can you post your code for an explosion even if it is slow it might help some people get it to work for them and maybe there is a way to optimize your code.

schick · Post by **schick** » Sat Apr 10, 2004 5:39 pm

I did it the way Robomaniac mentioned. Nothing but an emittor and some hardcoded parameter.

Peter Müller · Post by **Peter Müller** » Sun Apr 11, 2004 10:27 am

The other way is a billboard explosion. But this doesn't look really good

Guest · Post by **Guest** » Mon Apr 12, 2004 10:07 am

I tried a billboard explosion, and i though it turned out really cool!
maybe i had just had some good sprites. I got 'em from Ca3de.

You could always have a billboard for the fire, and particles for the smoke. Not sure how the combo would look though.