Enum NormalMode 

pub enum NormalMode {
    None,
    FaceNormals,
    BufferedGradient(BufferedElevations),
}

How (and whether) per-vertex normals are computed for the oct-encoded vertex-normals extension.

Variants

None

No vertex-normals extension.

FaceNormals

Per-tile face normals (crate::normals::face_normals). Simple, but produces a visible shading seam at tile boundaries.

BufferedGradient(BufferedElevations)

Seam-free DEM-gradient normals (crate::normals::buffered_gradient_normals) sampled from a buffer-extended grid. Its tile_grid_size must equal the encode grid_size.

The caller is responsible for filling the buffer-cell halo around the tile with the neighbour tiles’ elevations — that overlap is what makes edge normals match across the seam. A halo filled by edge-replication still encodes fine, but won’t be seam-free.

Trait Implementations

impl Clone for NormalMode

fn clone(&self) -> NormalMode

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for NormalMode

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for NormalMode

fn default() -> NormalMode

Returns the “default value” for a type.