ray

package

v0.0.0-...-54c745a Latest Latest Go to latest Published: Sep 23, 2025 License: MIT Imports: 4 Imported by: 0

Details

Valid go.mod file
Redistributable license
Tagged version
Stable version
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Repository

github.com/carlosroman/aun-otra-ray-tracer

Links

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Documentation ¶

Index ¶

Variables
func Dot(a, b Vector) float64
type Axis
type Matrix
type Point
type Ray
- func NewRay(x, y, z float64, r, g, b uint8) Ray
- func NewRayAt(point, vector Vector) Ray
type RowValues
type Vector

Constants ¶

This section is empty.

Variables ¶

View Source

var (
	ZeroVector       = NewVec(0, 0, 0)
	ZeroPoint        = NewPoint(0, 0, 0)
	NonInvertibleErr = errors.New("non-invertible")
)

Functions ¶

func Dot ¶

func Dot(a, b Vector) float64

Types ¶

type Axis ¶

type Axis int

const (
	X Axis = iota
	Y
	Z
)

type Matrix ¶

type Matrix [][]float64

func DefaultIdentityMatrix ¶

func DefaultIdentityMatrix() (identityMatrix Matrix)

func DefaultIdentityMatrixInverse ¶

func DefaultIdentityMatrixInverse() (identityMatrixInverse Matrix)

func IdentityMatrix ¶

func IdentityMatrix(rows, cols int) (identityMatrix Matrix)

func NewMatrix ¶

func NewMatrix(rows, columns int, rowsValues ...RowValues) Matrix

func Rotation ¶

func Rotation(axis Axis, by float64) (rotation Matrix)

func Scaling ¶

func Scaling(x, y, z float64) Matrix

func Translation ¶

func Translation(x, y, z float64) Matrix

func ViewTransform ¶

func ViewTransform(from, to, up Vector) (result Matrix)

func (Matrix) Cofactor ¶

func (m Matrix) Cofactor(row, col int) float64

func (Matrix) Determinant ¶

func (m Matrix) Determinant() float64

func (Matrix) Get ¶

func (m Matrix) Get(row, column int) float64

func (Matrix) Inverse ¶

func (m Matrix) Inverse() (result Matrix, err error)

func (Matrix) Minor ¶

func (m Matrix) Minor(row, col int) float64

func (Matrix) Multiply ¶

func (m Matrix) Multiply(by Matrix) (result Matrix)

func (Matrix) MultiplyByTuple ¶

func (m Matrix) MultiplyByTuple(vals ...float64) (result Matrix)

func (Matrix) MultiplyByVector ¶

func (m Matrix) MultiplyByVector(vec Vector) (result Vector)

func (Matrix) Set ¶

func (m Matrix) Set(row, column int, val float64)

func (Matrix) SetRow ¶

func (m Matrix) SetRow(row int, vals ...float64)

func (Matrix) String ¶

func (m Matrix) String() string

func (Matrix) SubMatrix ¶

func (m Matrix) SubMatrix(row, col int) (result Matrix)

func (Matrix) Transpose ¶

func (m Matrix) Transpose() (result Matrix)

type Point ¶

type Point Vector

type Ray ¶

type Ray interface {
	color.Color
	Origin() Vector
	Direction() Vector
	PointAt(parameter float64) Vector
	SetR(redVal uint8)
	SetG(greenVal uint8)
	SetB(blueVal uint8)
	Transform(transformation Matrix) (transformed Ray)
}

func NewRay ¶

func NewRay(x, y, z float64, r, g, b uint8) Ray

func NewRayAt ¶

func NewRayAt(point, vector Vector) Ray

type RowValues ¶

type RowValues []float64

type Vector ¶

type Vector interface {
	GetX() float64
	SetX(x float64) Vector
	GetY() float64
	SetY(y float64) Vector
	GetZ() float64
	SetZ(z float64) Vector
	GetW() float64
	SetW(w float64) Vector
	Multiply(by float64) Vector
	Multiplied(by Matrix) Vector
	Add(vec Vector) Vector
	Divide(by float64) Vector
	Subtract(vec Vector) Vector
	Magnitude() float64
	Normalize() Vector
	Negate() Vector
	Reflect(normal Vector) Vector
	Dot(n Vector) float64
}

func Cross ¶

func Cross(a, b Vector) Vector

func NewPoint ¶

func NewPoint(x, y, z float64) Vector

func NewVec ¶

func NewVec(x, y, z float64) Vector

Source Files ¶

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