POP Wrangler att inside popvop?

[mk1976]

Hi,
Noob question
I am creating a float attrib "time_in" inside POP Wrangler. the value is diplaying correctly in Geometry Spreadsheet.
my question is how can i access this attrib inside popvop?

 

[magneto]

You have to connect the ptnum input to Global ptnum output. Or just use the Bind VOP.

[anim]

Bind VOP would be the quickest way

otherwise to use Import Point Attribute you have to specify what is the First Input

you can do that on your POP VOP/Inputs tab and set First Input to Myself

[mk1976]

Bind VOP works perfectly  

thx a lot.

 

by the way, I have a question: what is the difference between: "f@time_in = -1.0" and "float f@time_in = -1.0" ?

I get 2 different result!

--------------------------------------

f@time_in = -1.0;
if (@time_in == -1){
    @time_in = @Frame;
    }else{
    @time_in = @time_in;
}

 

// the result is: all points will have the same value for @time_in, which is the actual current frame number in the timeline.

 

--------------------------------------

float @time_in = -1.0;
if (@time_in == -1){
    @time_in = @Frame;
    }else{
    @time_in = @time_in;
}

 

// the result is: each point will have its own value @time_in, the frame number at which the point enters the group.

[anim]

f@time_in = -1.0;

 

sets value for each point to -1.0

therefore it as well satisfies your condition and therefore sets current frame for all points every time

 

float @time_in = -1.0;

just sets default value for time_in attribute, so doesn't change the value for points that already have it, but for all newly added points it will initialize value to -1.0 until you set it to something else

[mk1976]

thanks for your helpful explanation

 

do you recommend some tutorials on these topics, that are updated to R14?