RayTracer::Cylinder Class Reference

#include <Cylinder.hpp>

Inheritance diagram for RayTracer::Cylinder:

Public Member Functions
	Cylinder (const Math::Point3D &baseCenter, double radius, double height, std::shared_ptr< IMaterial > material)
	~Cylinder () override=default
bool	intersect (const Ray &ray, double &t, Math::Point3D &hitPoint, Math::Vector3D &normal) const override
void	translate (const Math::Vector3D &v) override
void	rotate (const Math::Vector3D &axis, double angleDegrees) override
std::shared_ptr< IMaterial >	getMaterial () const override
Public Member Functions inherited from RayTracer::IPrimitive
virtual	~IPrimitive ()=default
Color	getBaseColor () const

Private Attributes
Math::Point3D	_baseCenter
double	_radius
double	_height
Math::Vector3D	_axis
std::shared_ptr< IMaterial >	_material
Math::Point3D	_center

Detailed Description

Definition at line 15 of file Cylinder.hpp.

Constructor & Destructor Documentation

Cylinder()

RayTracer::Cylinder::Cylinder	(	const Math::Point3D &	baseCenter,
		double	radius,
		double	height,
		std::shared_ptr< IMaterial >	material )

Definition at line 10 of file Cylinder.cpp.

    : _baseCenter(baseCenter), _radius(radius), _height(height), _material(std::move(material))
{}

References _baseCenter, _height, _material, and _radius.

~Cylinder()

RayTracer::Cylinder::~Cylinder ( )

overridedefault

Member Function Documentation

getMaterial()

std::shared_ptr< RayTracer::IMaterial > RayTracer::Cylinder::getMaterial ( ) const

overridevirtual

Implements RayTracer::IPrimitive.

Definition at line 24 of file Cylinder.cpp.

{
    return _material;
}

References _material.

intersect()

bool RayTracer::Cylinder::intersect ( const Ray & ray, double & t, Math::Point3D & hitPoint, Math::Vector3D & normal ) const

overridevirtual

Implements RayTracer::IPrimitive.

Definition at line 29 of file Cylinder.cpp.

{
    Math::Vector3D oc = ray.origin - _center;
 
    double a = ray.direction.x * ray.direction.x + ray.direction.z * ray.direction.z;
    double b = 2.0 * (oc.x * ray.direction.x + oc.z * ray.direction.z);
    double c = oc.x * oc.x + oc.z * oc.z - _radius * _radius;
 
    double discriminant = b * b - 4 * a * c;
    if (discriminant < 0)
        return false;
 
    double sqrtDisc = std::sqrt(discriminant);
    double t0 = (-b - sqrtDisc) / (2 * a);
    double t1 = (-b + sqrtDisc) / (2 * a);
 
    if (t0 > t1)
        std::swap(t0, t1);
 
    double y0 = oc.y + t0 * ray.direction.y;
    double y1 = oc.y + t1 * ray.direction.y;
 
    if (y0 < 0 || y0 > _height) {
        if (y1 < 0 || y1 > _height)
            return false;
        t = t1;
    } else {
        t = t0;
    }
 
    hitPoint = ray.origin + ray.direction * t;
 
    Math::Vector3D temp(hitPoint.x - _center.x, 0.0, hitPoint.z - _center.z);
    double length = std::sqrt(temp.x * temp.x + temp.y * temp.y + temp.z * temp.z);
    if (length != 0)
        normal = temp / length;
    else
        normal = temp;
 
    return true;
}

References _center, _height, _radius, RayTracer::Ray::direction, RayTracer::Ray::origin, Math::Point3D::x, Math::Vector3D::x, Math::Vector3D::y, Math::Point3D::z, and Math::Vector3D::z.

rotate()

void RayTracer::Cylinder::rotate ( const Math::Vector3D & axis, double angleDegrees )

overridevirtual

Implements RayTracer::IPrimitive.

Definition at line 19 of file Cylinder.cpp.

{
    _axis = Math::rotateVector(_axis, axis, angleDegrees);
}

References _axis, and Math::rotateVector().

translate()

void RayTracer::Cylinder::translate ( const Math::Vector3D & v )

overridevirtual

Implements RayTracer::IPrimitive.

Definition at line 14 of file Cylinder.cpp.

{
    _baseCenter = _baseCenter + v;
}

References _baseCenter.

Member Data Documentation

_axis

Math::Vector3D RayTracer::Cylinder::_axis

private

Definition at line 29 of file Cylinder.hpp.

_baseCenter

Math::Point3D RayTracer::Cylinder::_baseCenter

private

Definition at line 26 of file Cylinder.hpp.

_center

Math::Point3D RayTracer::Cylinder::_center

private

Definition at line 31 of file Cylinder.hpp.

_height

double RayTracer::Cylinder::_height

private

Definition at line 28 of file Cylinder.hpp.

_material

std::shared_ptr<IMaterial> RayTracer::Cylinder::_material

private

Definition at line 30 of file Cylinder.hpp.

_radius

double RayTracer::Cylinder::_radius

private

Definition at line 27 of file Cylinder.hpp.

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The documentation for this class was generated from the following files:

• include/Cylinder.hpp
• src/Cylinder.cpp