Okay, I'm not entirely sure how to phrase this question but I'll give it my best shot.
I've just started learning Geometry Nodes and today I tried out a course in which I learned how to make grass appear to sway with the wind. In doing so, I used the Attribute Sample Texture node.
My question is: What does the "Result" mean? In the picture below, the 4th node from the left, the Attribute Vector Math node takes the position attribute, then adds each position vector with another vector.
Here's what I understand: say for example one of the points is [1,1,1] then I add it with [2,4,0] to get a vector [3,5,1]. This new vector is then stored in the custom attribute "mapping". Then I use the mapping attribute in the Attribute Sample Texture node... then I'm lost. What happens to each vector? How does a cloud (for example) texture affect the vectors?
Also, I've checked the documentation and I still do not understand: "The Attribute Sample Texture node evaluates a texture for every point and stores the resulting colors in a new attribute. The mapping attribute can be anything that can be converted to a 3D vector. Typically, either the name of a UV map or the position attribute is used"