normalmap

Documentation

Overview

A Component for working with Normal-Maps.

Index

• Constants
• func CreateGeneratorJob(dst NormalSink, src *image.Gray16, f SourceFilter, scaleFactor float64) copier.Operator
• func NewStackingJob(dst NormalSink, src ...NormalSource) copier.Operator
• type NormalSink
• type NormalSource
• type SourceFilter

Constants

const (
	SF_Sobel3x3 = SourceFilter(iota)
	SF_Prewitt3x3
	SF_Scharr3x3
)

Functions

func CreateGeneratorJob

func CreateGeneratorJob(dst NormalSink, src *image.Gray16, f SourceFilter, scaleFactor float64) copier.Operator

Creates a Job, that generates a Normal-Map from a Height-Map using an operator such as Sobel. It returns a nil-Pointer on failure, (if illegal arguments are given).

Use copier.Operate(Operator,image.Rectangle) to perform the job.

The parameter scaleFactor is the weight of the Height-Map. The default value should be 1.0 !

func NewStackingJob

func NewStackingJob(dst NormalSink, src ...NormalSource) copier.Operator

Creates a Job, that stacks multiple Normal-Maps above each other.

Use copier.Operate(Operator,image.Rectangle) to perform the job.

Types

type NormalSink

type NormalSink interface {
	SetNormal64(x, y int, c vgimage.Normal64)
	SetNormal(x, y int, c vgimage.Normal)
}

type NormalSource

type NormalSource interface {
	Normal64At(x, y int) vgimage.Normal64
	NormalAt(x, y int) vgimage.Normal
}

type SourceFilter

type SourceFilter uint32