POP Fireworks - Color from Image

[ParticleSkull]

Hey guys,

I have to create fireworks that turn into some specific shapes. Just like this:


I have an workflow idea working with colors. It goes like this:

-Simulate standard the fireworks;

-Go to a specific frame where the where the starbusrt* is fully formed;

-Apply the color at this specific frame;

-keep that specific color assigned to individual particles through the whole simulation; 

(not working)

does it make sense?

I'm having problems to achieve this last step. what I'm doing is:

-caching the simulation;

-apply the colors;

-add a timeshif to the "rest" frame (89 in this case);

-copy the color attributes from this frame (89) to the animated simulation;



I guess it happens because the particle count changes during the sim. Any idea on how to proceed?

(Scene file is attached)

Thank you,
Alvaro

*starburst is the round shape

Fireworks.v1b.rar

[younglegend]

Try attribute transfer instead of attribute copy. Attribute copy match by id also gives different but interesting result. Hope that's what you are looking for. Cheers!

[ParticleSkull]

Got it! Thx Kiseh

In case anyone else need it, I just had to check "Match by Attribute" on the Attribute Copy sop + match it by id. Like this:

Cheers,
Alvaro

Edited April 2, 2017 by ParticleSkull