texture

Documentation

Overview

Package texture implements different types of textures.

Index

• type Checker
  • func NewChecker(odd Texture, even Texture) *Checker
  • func (c *Checker) Value(u float64, v float64, p *vec3.Vec3Impl) *vec3.Vec3Impl
• type Constant
  • func NewConstant(color *vec3.Vec3Impl) *Constant
  • func (c *Constant) Value(_ float64, _ float64, _ *vec3.Vec3Impl) *vec3.Vec3Impl
• type ImageTxt
  • func NewFromPNG(r io.Reader) (*ImageTxt, error)
  • func (it *ImageTxt) Value(u float64, v float64, p *vec3.Vec3Impl) *vec3.Vec3Impl
• type Noise
  • func NewNoise(scale float64) *Noise
  • func (n *Noise) Value(_ float64, _ float64, p *vec3.Vec3Impl) *vec3.Vec3Impl
• type Texture

Types

type Checker

type Checker struct {
	// contains filtered or unexported fields
}

Checker represents a checker board pattern texture.

func NewChecker

func NewChecker(odd Texture, even Texture) *Checker

NewChecker returns a new instance of the Checker texture.

func (*Checker) Value

func (c *Checker) Value(u float64, v float64, p *vec3.Vec3Impl) *vec3.Vec3Impl

type Constant

type Constant struct {
	// contains filtered or unexported fields
}

Constant represents a constant texture.

func NewConstant

func NewConstant(color *vec3.Vec3Impl) *Constant

NewConstant returns an instance of the constant texture.

func (*Constant) Value

func (c *Constant) Value(_ float64, _ float64, _ *vec3.Vec3Impl) *vec3.Vec3Impl

type ImageTxt

type ImageTxt struct {
	// contains filtered or unexported fields
}

ImageTxt represents an image-based texture.

func NewFromPNG

func NewFromPNG(r io.Reader) (*ImageTxt, error)

NewFromPNG returns a new ImageTxt instance by using the supplied PNG data.

func (*ImageTxt) Value

func (it *ImageTxt) Value(u float64, v float64, p *vec3.Vec3Impl) *vec3.Vec3Impl

type Noise

type Noise struct {
	// contains filtered or unexported fields
}

Noise represents a noise texture.

func NewNoise

func NewNoise(scale float64) *Noise

NewNoise returns an instance of the noise texture.

func (*Noise) Value

func (n *Noise) Value(_ float64, _ float64, p *vec3.Vec3Impl) *vec3.Vec3Impl

type Texture

type Texture interface {
	// Value returns the color values at a given point.
	Value(u float64, v float64, p *vec3.Vec3Impl) *vec3.Vec3Impl
}

Texture represents a texture.