Struct amethyst_renderer::PointLight

#[repr(C)]
pub struct PointLight {
    pub center: [f32; 3],
    pub color: Rgba,
    pub intensity: f32,
    pub radius: f32,
    pub smoothness: f32,
}

A point light source.

Lighting calculations are based off of the Frostbite engine's lighting, which is explained in detail here in this presentation. Below is equation 26, which we used for the lighting evaluation.

The Point properties below map like so:

• I = intensity
• lightRadius = radius
• n = smoothness

Fields

center: [f32; 3]

Location of the light source in three dimensional space.

color: Rgba

Color of the light in RGBA8 format.

intensity: f32

Brightness of the light source, in lumens.

radius: f32

Maximum radius of the point light's affected area.

smoothness: f32

Smoothness of the light-to-dark transition from the center to the radius.

Trait Implementations

impl Clone for PointLight

fn clone(&self) -> PointLight

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Pod for PointLight

impl Structure<ConstFormat> for PointLight

fn query(field_name: &str) -> Option<Element<ConstFormat>>

Get the layout of an element by name.

impl Debug for PointLight

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

Formats the value using the given formatter.

impl PartialEq for PointLight

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl Default for PointLight

fn default() -> Self

Returns the "default value" for a type.

impl From<PointLight> for Light

fn from(pt: PointLight) -> Self

Performs the conversion.