Ok I misunderstood that those examples just make use of the color information in the pivot painter.
When I rotate the the cylinder -90 degree on the axis around the Y-Axis then Pain the Selection Set I get the same rotational movement like in the example. But I am not really sure how the math behind it works in the blueprint.
Basically from what I understand, when you store the -90 rotation in the pivot painter, the “Pivot Postion” in the blueprint gives out negative values, like fro example -1. This minus value then ends up in the “Sine_Remapped” node giving the opposite RotationAngle Input to the “RotationAboutAxis” node. The same would happen when you set wind direction to (-1,0,0).
Also I don’t understand the Pivot Position Output. What is ment by “Pivot Point Information for each element”? What is ment by Element? Vertex? Branch? DetachedMesh?
Furthermore I don’t understand the value’s in the offset animation and increasing value by one unit part of the BP. For example the sphere mask is using an attenuation radius of 256 and for increasing by steps the dot product from wind and pivot position is divided by 128. I may understand that from the size of the object one has to adjust those value’s for desired effects, but how come those exact value’s were choses for this mesh size?