Font SOP reading attribute from other SOP

[rurik]

Hello

 

Super basic question, but I can't seem to figure it out...How do you get a Font SOP to display the attributes of a say, a Box SOP.?  So for example if the box had a $V variable generated by a Trace SOP, how could I have the font SOP display that value?

 

Thanks

[eetu]

You need to use an expression, like this

ee_font_expression.hip

[rurik]

Thanks!

So what would be a good way to access attributes that are not local variables?

For example 'v' or 'p'

 

Thanks!
 

[freaq]

best way is to do an attribcreate where you create the attribute in question beforehand and assign a local variable to it.

 

or to do it through a point expression
point("../somenode",0,"attribute",0)

point(node,pointnr,attribname,attribIndex)
you can make the point expression look atht the input of the node it is in.

[rurik]

Hmm, I tried the first method, where I use an attributecreate and create a $POS local variable that reads the $TX,$TY,$TZ of my object.

 

Then I modified Eetu's expression to 

------

This torus is `("../attribcreate1", $POS)` units wide

-------

But I'm clearly not using the right syntax in this case right?

 

Thanks!

[eetu]

When you use an expression like point() or detail() to query attribute data, you don't need to have or use a local variable.

 

ee_font_expression2.hip

[rurik]

Amazing, thanks Eetu!