The point light, which gets emitted from a single point in all directions. More...

#include <PointLight.hpp>

Inheritance diagram for t::PointLight:

Public Member Functions
	PointLight (Color color, double intensity)
	Creates a new point light with the specified color and intensity.

bool	isPointLight () const override
	Returns whether or not this light is a point light.

double	power () const
	Returns the power of this light.

Public Member Functions inherited from t::Light
bool	isLight () const override
	Returns whether or not this 3D object is a light.

virtual bool	isAmbientLight () const
	Returns whether or not this light is an ambient light.

virtual bool	isDirectionalLight () const
	Returns whether or not this light is a directional light.

virtual bool	isSpotLight () const
	Returns whether or not this light is a spot light.

Public Member Functions inherited from t::Object3D
virtual bool	isMesh () const
	Returns whether this 3D object is a mesh.

Object3D &	add (Object3D &child)
	Adds another 3D object as a child of this 3D object.

Object3D &	translate (double x, double y, double z)
	Translates this 3D object by the specified amounts along the x, y, and z axes in local space.

Object3D &	rotate (double x, double y, double z, EulerRotationOrder order)
	Rotates this 3D object by the specified angles around the x, y, and z axes in local space.

Object3D &	scale (double x, double y, double z)
	Scales this 3D object by the specified amounts along the x, y, and z axes in local space.

Object3D &	updateLocalMatrix ()
	Updates the local transformation matrix of this 3D object.

Object3D &	updateModelMatrix ()
	Updates the model matrix of this 3D object.

Public Attributes
Color	color
	The color of this point light.

double	intensity
	The intensity of this point light in candela (cd).

Public Attributes inherited from t::Object3D
std::optional< std::reference_wrapper< Object3D > >	parent
	The parent of this 3D object.

Vector3	up = DEFAULT_UP
	The vector pointing to the up direction in object space.

Vector3	localPosition
	The position of this 3D object relative to its parent.

EulerRotation	localRotation
	The rotation of this 3D object relative to its parent.

Vector3	localScale
	The scale of this 3D object relative to its parent.

Matrix4x4	localMatrix
	The matrix of the local transformation of this 3D object.

Matrix4x4	modelMatrix
	The model matrix of this 3D object, transformating local space to world space.

std::vector< std::reference_wrapper< Object3D > >	children
	The children of this 3D object.

Detailed Description

The point light, which gets emitted from a single point in all directions.

Point lights are some of the most common lights in 3D graphics. They can be used, for example, to represent lights from light bulbs or fireflies.

For the BlinnPhong material, the light's color contribution will be \(c = \text{diffuse color} \times \text{light's intensity} \times (\text{specular} + \text{diffuse})\). The specular and diffuse components do not rely on the light's intensity.

Constructor & Destructor Documentation

◆ PointLight()

t::PointLight::PointLight	(	Color	color,
		double	intensity )

inline

Creates a new point light with the specified color and intensity.

Parameters

color	The color of the new point light.
intensity	The intensity of the new point light in candela (cd).

Member Function Documentation

◆ isPointLight()

bool t::PointLight::isPointLight ( ) const

inlineoverridevirtual

Returns whether or not this light is a point light.

Always returns true. May be used in vertex and fragment shaders to determine the type of light and make a cast from Light appropriately.

Returns: true

Reimplemented from t::Light.

◆ power()

double t::PointLight::power ( ) const

inline

Returns the power of this light.

The power of this light is in lumens (lm) and is calculated as \(\text{intensity} \times 4 \times \pi\).

Returns: The power of this light in lumens (lm).

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

include/lights/PointLight.hpp