blueprint

Documentation

Overview

Package blueprint enables the creation of render files for artworks of buddhabrots and it's family members.

Index

• type Blueprint
  • func Parse(filename string) (blue *Blueprint, err error)
  • func (b *Blueprint) Fractal() *fractal.Fractal
  • func (b *Blueprint) Render() *render.Render

Types

type Blueprint

type Blueprint struct {
	Iterations float64 // Number of iterations.
	Bailout    float64 // Squared radius of the function domain. Most commonly set to 4, but it's important for planes other than Zrzi.
	Tries      float64 // The number of orbit attempts calculated by: tries * (width * height)

	Coloring string // Coloring method for the orbits.

	DrawPath    bool  // Draw the path between points in the orbit.
	PathPoints  int64 // The number of intermediate points to use for interpolation.
	BezierLevel int   // Bezier interpolation level: 1 is linear, 2 is quadratic etc.

	Width, Height  int    // Width and height of final image.
	Png, Jpg       bool   // Image output format.
	OutputFilename string // Output filename without (file extension).

	CacheHistograms   bool // Cache the histograms by saving them to a file.
	MultipleExposures bool // Render the image with multiple exposures.
	PlotImportance    bool // Create an image of the sampling points color graded by their importance.

	Imag      float64 // Offset on the imaginary-value axis.
	Real      float64 // Offset on the real-value axis.
	Zoom      float64 // Zoom factor.
	Seed      int64   // Random seed.
	Threshold float64 // Minimum orbit length to be registered.

	// Coefficients multiplied to the imaginary and real parts in the complex function.
	ImagCoefficient float64
	RealCoefficient float64

	Function string  // Normalization function for scaling the brightness of the pixels.
	Factor   float64 // Factor is used by the functions in various ways.
	Exposure float64 // Exposure is a scaling factor applied after the normalization function has been applied.

	RegisterMode string // How the fractal will capture orbits. The different modes are: anti, primitive and escapes.

	ComplexFunction string // The complex function we shall explore.

	Plane string // Chose which capital plane we will plot: Crci, Crzi, Zici, Zrci, Zrcr, Zrzi.

	BaseColor iro.RGBA   // The background color.
	Gradient  []iro.RGBA // The color gradient used by the coloring methods.
	Range     []float64  // The interpolation points for the gradient.

	ZUpdate string // Chose how we shall update Z.
	CUpdate string // Chose how we shall update C.

	Theta float64 // Rotation angle. Experimental option since it demands matrix rotation which slows down the renders considerably on CPU based renders.
}

Blueprint contains the settings and options needed to render a fractal.

func Parse

func Parse(filename string) (blue *Blueprint, err error)

Parse opens and parses a blueprint json file.

func (*Blueprint) Fractal

func (b *Blueprint) Fractal() *fractal.Fractal

Fractal creates a fractal object for the blueprint.

func (*Blueprint) Render

func (b *Blueprint) Render() *render.Render

Render creates a render object for the blueprint.