Color by velocity, without rendering PRT

Become a member of the CGSociety

Connect, Share, and Learn with our Large Growing CG Art Community. It's Free!

THREAD CLOSED
 
Thread Tools Search this Thread Display Modes
Old 06 June 2012   #1
Color by velocity, without rendering PRT

I'm working on a big project that has been saving out particle sequences as PRT files, in order to save the Velocity channel and render in Krakatoa. I am using the velocity channel to apply a gradient ramp and color the particles based on their velocity/speed.

It would be incredibly beneficial if this was possible to do - color particles based on velocity or speed - without having to render a PRT sequence for every scene, as it is quite time consuming.

Is there a way to apply a gradient ramp of colors to particles, using the velocity channel, and then render with krakatoa, without first rendering out a PRT sequence?
 
Old 06 June 2012   #2
You can apply a global kcm that would do the job. Look it up in the documentation

And, we should start having FX meetups in Stanley park
 
Old 06 June 2012   #3
Will take a look at that Glacier, thanks!

And absolutely we should! I know Bobo, from Thinkbox, lives here in Vancouver as well.
 
Old 06 June 2012   #4
I'm not sure if I'm doing it right - but I've managed to get my particles, from what I can tell, to take on my gradient ramp based on what I hope is their velocity, using a KCM Global Color override with my gradient ramp fed as the map channel.

Edit: I used the same Magma Editor flow as with my PRT Sequences, basically Velocity > Magnitude > Divide > Curve > Vector > Mapping Channel (Gradient). Not sure if this is necessary, but it seems to be working so I don't want to change anything.

As far as I can tell - complete success.

Thanks again!

Last edited by Eucalyptus : 06 June 2012 at 08:16 PM.
 
Old 06 June 2012   #5
Thread automatically closed

This thread has been automatically closed as it remained inactive for 12 months. If you wish to continue the discussion, please create a new thread in the appropriate forum.
__________________
CGTalk Policy/Legalities
Note that as CGTalk Members, you agree to the terms and conditions of using this website.
 
Thread Closed share thread



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
CGSociety
Society of Digital Artists
www.cgsociety.org

Powered by vBulletin
Copyright 2000 - 2006,
Jelsoft Enterprises Ltd.
Minimize Ads
Forum Jump
Miscellaneous

All times are GMT. The time now is 06:57 PM.


Powered by vBulletin
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.