So, as the title says, I have a mesh created with GN, and I need to color it using the color attribute from a plane, here’s a screenshot to illustrate:
(Hint - the target mesh needs to also be high-rez, so if you are generating from a curve, do a resample with a length similar to your source-plane’s resolution.)
It worked perfectly, thanks @zeroskilz! The only difference to your setup is that in 3.4 I had to use a Sample Nearest Surface node, instead of Transfer Attribute, as it has been removed and replaced with 3 other nodes.