color attrib per frame in dops

[meldrew]

Hi all,

Am trying to tweak a scene file that was passed to me from here (apologies, I don't know/can't find original poster, so can't credit).

It's a wire sim where points are activated based on their Y position - And I'm trying to tweak it to be based on color.

I've worked a nice way to animate my colour across the points in a way I like, but my question is:

 

How do i get my point color attrib to update per frame in the dopnet? And how do i associate it to the gluetoanimation value?

 

Been really trying to get this going today, but to no avail... Any help or tips gratefully received!

activate_sim_based_on_color.hip

[Skybar]

In your wrangle there write

@Cd = point(0, "Cd", @ptnum);

This sets Cd to the Cd of the first input. But you have no input yet, so go to the Inputs tab of the wrangle, and set input 1 to "First Context Geometry" - this is the first input of the DOP Network. 

edit: And then you can do

@gluetoanimation = @Cd.r;

This sets gluetoanimation to the same value as the red channel of Cd.

Edited May 25, 2016 by Skybar

[meldrew]

14 hours ago, Skybar said:

In your wrangle there write

@Cd = point(0, "Cd", @ptnum);

This sets Cd to the Cd of the first input. But you have no input yet, so go to the Inputs tab of the wrangle, and set input 1 to "First Context Geometry" - this is the first input of the DOP Network. 

edit: And then you can do

@gluetoanimation = @Cd.r;

This sets gluetoanimation to the same value as the red channel of Cd.

Perfect... Thanks Skybar!

I was going in the '$CR' direction for the @gluetoanimation, but would have taken me forever to reach your conclusion.

 

Going to spend the next few days playing with wrangles to try and learn them as much as possible.

[Skybar]

You can do it in VOPs as well, might be easier to see what's going on if you are new to it. Just easier to share VEX without hipfiles