Color

Represents an RGB color with floating-point components.

This class stores color values as three floating-point channels (red, green, blue), normalized to the range . It does not include an alpha component. Color supports construction from floats, hexadecimal values, and spans, as well as basic arithmetic operations.

Construction

Constructors

Color() constexpr

Constructs a color from individual RGB components.

Color::Color(float r, float g, float b);

Parameter	Description
r	Red component.
g	Green component.
b	Blue component.

Color() constexpr

Constructs a color from a span of three float values.

Color::Color(std::span<float> color);

Parameter	Description
color	Span containing red, green, and blue components.

Color() constexpr

Constructs a color from a hexadecimal value.

The format is 0xRRGGBB, and all channels are normalized to .

Color::Color(unsigned int hex);

Parameter	Description
hex	Hexadecimal color code.

Properties

b float

Blue channel in .

float b {1.0f};

g float

Green channel in .

float g {1.0f};

r float

Red channel in .

float r {1.0f};

Functions

operator*=() Color&

Multiplies the color by a scalar in-place.

Color& Color::operator* =(float n);

Parameter	Description
n	Scalar value.

operator=() Color&

Assigns a new color from a hexadecimal value.

Color& Color::operator=(unsigned int hex);

Parameter	Description
hex	Hexadecimal color code in 0xRRGGBB format.

operator[]() float &

Accesses a channel by index.

float& Color::operator[](int i);

Parameter	Description
i	Index: 0 → r, 1 → g, 2 → b.

operator[]() float

Accesses a channel by index.

float Color::operator[](int i) const;

Parameter	Description
i	Index: 0 → r, 1 → g, 2 → b.

Lerp() Color

Linearly interpolates between two colors.

Color Lerp(const Color& a, const Color& b, float f);

Parameter	Description
a	Start color.
b	End color.
f	Interpolation factor in .

operator*() Color

Multiplies a color by a scalar.

Color operator* (const Color& v, float n);

Parameter	Description
v	Input color.
n	Scalar value.

operator*() Color

Multiplies a scalar by a color.

Color operator* (float n, const Color& v);

Parameter	Description
n	Scalar value.
v	Input color.

operator+() Color

Adds two colors component-wise.

Color operator+(const Color& a, const Color& b);

Parameter	Description
a	First color.
b	Second color.

operator-() Color

Subtracts one color from another, clamped at zero.

Color operator-(const Color& a, const Color& b);

Parameter	Description
a	First color.
b	Color to subtract.