Quad class

#include <src/surfaces/quad.cpp>

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

Base classes

class XformedSurfaceWithMaterial

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

Public functions

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.

Protected variables

Vec2f m_size

The extent of the quad in the (x,y) plane.