Struct tray_rust::geometry::sphere::Sphere

pub struct Sphere { /* fields omitted */ }

A sphere with user-specified radius located at the origin.

Methods

impl Sphere

pub fn new(radius: f32) -> Sphere

Create a sphere with the desired radius

Trait Implementations

impl Geometry for Sphere

fn intersect(&self, ray: &mut Ray) -> Option<DifferentialGeometry>

Test a ray for intersection with the geometry. The ray should have been previously transformed into the geometry's object space otherwise the test will be incorrect. Returns the differential geometry containing the hit information if the ray hit the object and set's the ray's max_t member accordingly

impl Boundable for Sphere

fn bounds(&self, _: f32, _: f32) -> BBox

Get an AABB reporting the object's bounds over the time period The default implementation assumes the object isn't animated and simply returns its bounds. This is kind of a hack to use the BVH for animated geomtry (instances) and non-animated geometry (triangles).

fn update_deformation(&mut self, start: f32, end: f32)

Have the object recompute its bounds for the time range. In the case of deforming geometry this can rebuild acceleration structures for example.

impl Sampleable for Sphere

fn sample_uniform(&self, samples: &(f32, f32)) -> (Point, Normal)

Uniformly sample a position and normal on the surface using the samples passed

fn sample(&self, p: &Point, samples: &(f32, f32)) -> (Point, Normal)

Sample the object using the probability density of the solid angle from p to the sampled point on the surface. Returns the sampled point and the surface normal at that point

fn surface_area(&self) -> f32

Compute the sphere's surface area

fn pdf(&self, p: &Point, _: &Vector) -> f32

Compute the PDF that the ray from p with direction w_i intersects the shape

impl Clone for Sphere

fn clone(&self) -> Sphere

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for Sphere