material

package

v0.0.0-...-e791307 Latest Latest Go to latest Published: May 18, 2023 License: MIT Imports: 8 Imported by: 0

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Repository

github.com/achilleasa/go-pathtrace

Links

Open Source Insights

Documentation ¶

Index ¶

Constants
Variables
func IOR(name MaterialNameNode) (float32, error)
func IsBxdfType(t uint32) bool
func IsOpType(t uint32) bool
type BumpMapNode
- func (n BumpMapNode) Validate() error
type BxdfNode
- func (n BxdfNode) Validate() error
type BxdfParamNode
- func (n BxdfParamNode) Validate() error
type BxdfParameterList
- func (n BxdfParameterList) Validate() error
type BxdfType
- func (t BxdfType) String() string
type DisperseNode
- func (n DisperseNode) Validate() error
type ExprNode
- func ParseExpression(input string) (ExprNode, error)
type FloatNode
- func (n FloatNode) Validate() error
type MaterialNameNode
- func (n MaterialNameNode) Validate() error
type MaterialRefNode
- func (n MaterialRefNode) Validate() error
type MixMapNode
- func (n MixMapNode) Validate() error
type MixNode
- func (n MixNode) Validate() error
type NormalMapNode
- func (n NormalMapNode) Validate() error
type OpType
type TextureNode
- func (n TextureNode) Validate() error
type Vec3Node
- func (n Vec3Node) Validate() error

Constants ¶

View Source

const (
	ParamReflectance   = "reflectance"
	ParamSpecularity   = "specularity"
	ParamTransmittance = "transmittance"
	ParamRadiance      = "radiance"
	ParamIntIOR        = "intIOR"
	ParamExtIOR        = "extIOR"
	ParamScale         = "scale"
	ParamRoughness     = "roughness"
)

Variables ¶

View Source

var (
	DefaultRoughness      float32 = 0.1
	DefaultReflectance            = types.Vec4{0.2, 0.2, 0.2, 0.0}
	DefaultSpecularity            = types.Vec4{1.0, 1.0, 1.0, 0.0}
	DefaultTransmittance          = types.Vec4{1.0, 1.0, 1.0, 0.0}
	DefaultRadiance               = types.Vec4{1.0, 1.0, 1.0, 0.0}
	DefaultRadianceScaler float32 = 1.0
	DefaultIntIOR                 = KnownIORs["Glass"]
	DefaultExtIOR                 = KnownIORs["Air"]
)

View Source

var (
	KnownIORs = map[string]float32{}/* 245 elements not displayed */

)

Built-in list of known material IORs. Sourced from: http://forums.cgsociety.org/archive/index.php?t-513458.html

Functions ¶

func IOR ¶

func IOR(name MaterialNameNode) (float32, error)

func IsBxdfType ¶

func IsBxdfType(t uint32) bool

Helper function to check if a value represents a bxdf type.

func IsOpType ¶

func IsOpType(t uint32) bool

Helper function to check if a value represents an op type.

Types ¶

type BumpMapNode ¶

type BumpMapNode struct {
	Expression ExprNode
	Texture    TextureNode
}

func (BumpMapNode) Validate ¶

func (n BumpMapNode) Validate() error

type BxdfNode ¶

type BxdfNode struct {
	Type       BxdfType
	Parameters BxdfParameterList
}

func (BxdfNode) Validate ¶

func (n BxdfNode) Validate() error

type BxdfParamNode ¶

type BxdfParamNode struct {
	Name  string
	Value ExprNode
}

func (BxdfParamNode) Validate ¶

func (n BxdfParamNode) Validate() error

type BxdfParameterList ¶

type BxdfParameterList []BxdfParamNode

func (BxdfParameterList) Validate ¶

func (n BxdfParameterList) Validate() error

type BxdfType ¶

type BxdfType uint32

BxdfType represents the surface types supported by the renderer.

const (

	//
	BxdfEmissive BxdfType
	BxdfDiffuse
	BxdfConductor
	BxdfRoughtConductor
	BxdfDielectric
	BxdfRoughDielectric
)

func (BxdfType) String ¶

func (t BxdfType) String() string

type DisperseNode ¶

type DisperseNode struct {
	Expression ExprNode
	IntIOR     Vec3Node
	ExtIOR     Vec3Node
}

func (DisperseNode) Validate ¶

func (n DisperseNode) Validate() error

type ExprNode ¶

type ExprNode interface {
	Validate() error
}

func ParseExpression ¶

func ParseExpression(input string) (ExprNode, error)

Parser interface.

type FloatNode ¶

type FloatNode float32

func (FloatNode) Validate ¶

func (n FloatNode) Validate() error

type MaterialNameNode ¶

type MaterialNameNode string

func (MaterialNameNode) Validate ¶

func (n MaterialNameNode) Validate() error

type MaterialRefNode ¶

type MaterialRefNode string

func (MaterialRefNode) Validate ¶

func (n MaterialRefNode) Validate() error

type MixMapNode ¶

type MixMapNode struct {
	Expressions [2]ExprNode
	Texture     TextureNode
}

func (MixMapNode) Validate ¶

func (n MixMapNode) Validate() error

type MixNode ¶

type MixNode struct {
	Expressions [2]ExprNode
	Weight      float32
}

func (MixNode) Validate ¶

func (n MixNode) Validate() error

type NormalMapNode ¶

type NormalMapNode struct {
	Expression ExprNode
	Texture    TextureNode
}

func (NormalMapNode) Validate ¶

func (n NormalMapNode) Validate() error

type OpType ¶

type OpType uint32

OpType represents a blend or modification operator that is applies to one or more bxdf expressions.

const (

	//
	OpMix OpType
	OpMixMap
	OpBumpMap
	OpNormalMap
	OpDisperse
)

type TextureNode ¶

type TextureNode string

func (TextureNode) Validate ¶

func (n TextureNode) Validate() error

type Vec3Node ¶

type Vec3Node types.Vec3

func (Vec3Node) Validate ¶

func (n Vec3Node) Validate() error

Source Files ¶

View all Source files

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