Surfaces module

Files

file bbh.cpp

Class BBH, BBHNode, and #BBHBuildRecord.

file quad.cpp

Class Quad.

file sphere.cpp

Class Sphere.

Classes

class Sphere

A sphere centered at the origin with radius m_radius.

struct HitInfo

Contains information about a ray intersection hit point.

struct EmitterRecord

Data record for conveniently querying and sampling emitters.

class Surface

This is the abstract superclass for all surfaces.

class XformedSurfaceWithMaterial

A convenience subclass of Surface for simple surfaces with a Transform and a Material.

class SurfaceGroup

A collection of Surfaces grouped together.

struct BBH

An axis-aligned bounding box hierarchy acceleration structure.

struct BBHNode

A node of an axis-aligned bounding box hierarchy.

class Quad

A quad spanning from -m_size / 2 to m_size / 2 in the (x,y)-plane at z=0.

Functions

auto intersect(const Ray3f& ray, HitInfo& hit) const -> bool override

Ray-Surface intersection test.

void build() override

Construct the BBH (must be called before intersect)

auto intersect(const Ray3f& ray, HitInfo& hit) const -> bool override

Intersect a ray against all surfaces registered with the Accelerator.

auto intersect(const Ray3f& ray, HitInfo& hit) const -> bool override

Ray-Surface intersection test.

auto local_bounds() const -> Box3f override

Return the surface's local-space AABB.

auto sample(EmitterRecord& rec, const Vec2f& rv) const -> Color3f override

Sample a direction from rec.o towards this surface.

auto pdf(const Vec3f& o, const Vec3f& v) const -> float override

Return the probability density of the sample generated by sample.

auto intersect(const Ray3f& ray, HitInfo& hit) const -> bool override

Ray-Surface intersection test.

auto local_bounds() const -> Box3f override

Return the surface's local-space AABB.

Function documentation