Project a point (or object) onto a mesh in Houdini

Project a point (or object) onto a mesh

add a mesh

add a point

take a point from a line or use add node or create a point in the center of object with extract centroid node

projecting the point

add ray node feed point into first input and mesh into 2nd direction from: vector ray direction -> right click -> delete channels ray direction: 0 1 0

create normal for the point

add normal node (below mesh) add normals to: points add another +ray node feed point into first input and normal/mesh into 2nd method: minimum distance check import attributes from hits point attributes: N (then continue with copy to points to project an object onto the mesh or a boolean)