Struct WarpField 

pub struct WarpField<'a> {
    pub cols: u32,
    pub rows: u32,
    pub vertices: &'a [WarpVertex],
}

Per-vertex warp-displacement field, borrowed from the renderer’s most recent update_warp_vertices call. vertices[r * cols + c] matches the warp mesh’s row-major layout; the segment builder recovers uv_orig from pos_clip (inverse of the same mapping WarpMesh::new uses) and reports the displacement uv_warp - uv_orig at the grid cell’s nearest mesh vertex.

Fields

cols: u32

rows: u32

vertices: &'a [WarpVertex]