Enum SpriteNormalMode 

pub enum SpriteNormalMode {
    Spherical,
    Flat,
    NormalMap,
}

How a lit sprite recovers a per-fragment normal for shading.

Picked per batch; affects sprites whose SpriteItem::lit is true.

Variants

Spherical

Treat the quad as the cross-section of a sphere. The normal points from the quad centre outward through the fragment, giving a soft round falloff. The standard pick for smoke, dust, and fog.

Flat

Use the quad’s screen-facing normal. Cheapest; suits grass cards and other already-oriented art.

NormalMap

Sample a tangent-space normal map. The map’s RGB encodes the perturbed normal; the quad’s local right/up axes serve as the tangent basis. Falls back to Spherical when no normal map is bound.

Trait Implementations

impl Clone for SpriteNormalMode

fn clone(&self) -> SpriteNormalMode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for SpriteNormalMode

impl Debug for SpriteNormalMode

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

Formats the value using the given formatter.

impl Default for SpriteNormalMode

fn default() -> SpriteNormalMode

Returns the “default value” for a type.

impl Eq for SpriteNormalMode

impl PartialEq for SpriteNormalMode

fn eq(&self, other: &SpriteNormalMode) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for SpriteNormalMode