Exposing offset parameters

Rick Stirling

Hey all, I've written a tiny graph that selects a single row of pixels from an image (to feed into the Gradient Dynamic).

I've exposed the offsets from the source image, however I only want to expose the Y offset and I want to keep the X offset locked (or preferably hidden. Any idea how I can do that?

m4dcow

You could hook the offset parameter upto a function that is driven by an input parameter instead of directly exposing it.

Or I assume you are using the offset to change the gradient, you could just expose the gradient input position parameter on the dynamic gradient node instead.

Rick Stirling

Ah, that function worked (almost, a minor issue).

I created a new Input Variable called Row_Select, set to Float.

I then found the Offset on the Transform 2d node and set it to an empty function.

The function was simple, a Constant Float set to 0.0 and a Variable Get float set to Row_Select. They then got piped into a Vector float 2 to give me 0,Row_select value. That worked a treat.

Except....

The Row select was originally in it's own graph, and when I have it in it's own graph it can't see the row_select from the Gradient mix graph. I need to figure out how to pass an input value from 1 graph to to another.