[keelers]

Hello all,

I was just wondering if anyone could give me some help with this space shuttle launch scene im doing for my final year project. The bit im stuck on is the shuttle engines. They start off very red and then change to a blue flame but i cant seem to get them to do this (using hypervoxels 3). Ive already used gradients to alter the color due to texture and local particle density. What i dont know is how to now alter that color over time. Im sure its possible but im stuck. Any help would be greatly appreciated.

btw i dont want to use volumetric lighting effects for them because theyre crap and i want ray trace shadows


Heres a shot of the situation...

[admiralbcd]

I'm haven't worked with hypervoxels a lot, but my first guess would be to make 2 separate hypervoxels.
The first reddish one with some heavy black clouds and yellow/orange flame. Then a second one with less clouds and more blue/white colors, and stretched on the Y axis to simulate the heavy thrust.
when you have those, just use an envelope to manage the opacity and let them dissolve into each other.
Would be my first guess, maybe someone has other ideas...:p

[NoStr0m0]

In the gradient type or whatever it's called of the Hypervoxels there's such a thing as Particle age = time from the moment of birth so at the top of the gradient you'll have a red-ish color and at the bottom light blue

[keelers]

Cheers for your help, think ive got it sorted now. Looks good enough from a distance :attn: