Requesting math for local space transform in shader

[SirVoxelot]

does anyone know how to set up the world position offset so that the world space matches the object’s original position and orientation?

in my gif, there’s 2 flags, they have the same material. It’s just a V4 parameter plugged into world position offset, the one on the left is in world space, the one on the right is in a blueprint, and is a child of the blue pole,
Ideally if i rotate the pole, the flag would spin as if a child of the pole, instead it spins where it is. but I’m not sure how to set up the shader so the parameter controls act like a local space transform for the flag
any help would be great! thanks!

[Niels]

Ue4 has a transform node to do the math for you, so you don’t have to.

[SirVoxelot]

thanks, do you have a sample shader tree pic?, I tried a bunch of setups, and I still can’t figure out how to get it to move in localspace, cubes grow and shrink. and invert,

[Niels]

Yup.

You want to transform your vector from Local space to World Space to find the world space offset equivalent of your local space offset.

[SirVoxelot]

oh man thanks so much! it worked! my original graphs were way more overcomplicated

!