Struct rs_pbrt::core::lightdistrib::UniformLightDistribution

pub struct UniformLightDistribution {
    pub distrib: Arc<Distribution1D>,
}

The simplest possible implementation of LightDistribution: this returns a uniform distribution over all light sources, ignoring the provided point. This approach works well for very simple scenes, but is quite ineffective for scenes with more than a handful of light sources. (This was the sampling method originally used for the PathIntegrator and the VolPathIntegrator in the printed book, though without the UniformLightDistribution class.)

Fields

distrib: Arc<Distribution1D>

Implementations

impl UniformLightDistribution

pub fn new(scene: &Scene) -> Self

pub fn lookup(&self, _p: &Point3f) -> Arc<Distribution1D>

Given a point |p| in space, this method returns a (hopefully effective) sampling distribution for light sources at that point.