graphic

package
v0.0.0-...-585686a Latest Latest
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 Go to latest Published: Mar 12, 2017 License: BSD-2-Clause Imports: 7 Imported by: 0

Documentation

Overview

Package graphic implements scene objects which have a graphic representation.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

This section is empty.

Types

type AxisHelper 

type AxisHelper struct {
	Lines
}

func NewAxisHelper 

func NewAxisHelper(size float32) *AxisHelper

type Graphic 

type Graphic struct {
	core.Node // Embedded Node
	// contains filtered or unexported fields
}

Graphic is a Node which has a visible representation in the scene. It has an associated geometry and one or more materials. It is the base type used by other graphics such as lines, line_strip, points and meshes.

func (*Graphic) AddGroupMaterial 

func (gr *Graphic) AddGroupMaterial(igr IGraphic, imat material.IMaterial, gindex int)

Add group material

func (*Graphic) AddMaterial 

func (gr *Graphic) AddMaterial(igr IGraphic, imat material.IMaterial, start, count int)

Add material for the specified subset of vertices. If the material applies to all vertices, start and count must be 0.

func (*Graphic) Dispose 

func (gr *Graphic) Dispose()

Dispose overrides the embedded Node Dispose method

func (*Graphic) GetGeometry 

func (gr *Graphic) GetGeometry() *geometry.Geometry

GetGeometry satisfies the IGraphic interface and returns a pointer to the geometry associated with this graphic

func (*Graphic) GetGraphic 

func (gr *Graphic) GetGraphic() *Graphic

GetGraphic satisfies the IGraphic interface and returns pointer to the base Graphic

func (*Graphic) GetMaterial 

func (gr *Graphic) GetMaterial(vpos int) material.IMaterial

GetMaterial returns the material associated with the specified vertex position

func (*Graphic) Init 

func (gr *Graphic) Init(igeom geometry.IGeometry, mode uint32) *Graphic

Init initializes a Graphic type embedded in another type with the specified geometry and OpenGL mode.

func (*Graphic) Materials 

func (gr *Graphic) Materials() []GraphicMaterial

Materials returns slice with this graphic materials

func (*Graphic) Renderable 

func (gr *Graphic) Renderable() bool

Renderable satisfies the IGraphic interface and returns the renderable state of this graphic

func (*Graphic) SetRenderable 

func (gr *Graphic) SetRenderable(state bool)

SetRenderable satisfies the IGraphic interface and sets the renderable state of this Graphic (default = true)

type GraphicMaterial 

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

GraphicMaterial specifies the material to be used for a subset of vertices from the Graphic geometry A Graphic object has at least one GraphicMaterial

func (*GraphicMaterial) GetMaterial 

func (grmat *GraphicMaterial) GetMaterial() material.IMaterial

func (*GraphicMaterial) Render 

func (grmat *GraphicMaterial) Render(gs *gls.GLS, rinfo *core.RenderInfo)

Render is called by the renderer to render this graphic material

type GridHelper 

type GridHelper struct {
	Lines
}

func NewGridHelper 

func NewGridHelper(size, step float32, color *math32.Color) *GridHelper

NewGridHelper creates and returns a pointer to a new grid help object with the specified size and step

type IGraphic 

type IGraphic interface {
	core.INode
	GetGraphic() *Graphic
	GetGeometry() *geometry.Geometry
	Renderable() bool
	SetRenderable(bool)
	RenderSetup(gs *gls.GLS, rinfo *core.RenderInfo)
}

Interface for all Graphics

type LineStrip 

type LineStrip struct {
	Graphic
	// contains filtered or unexported fields
}

func NewLineStrip 

func NewLineStrip(igeom geometry.IGeometry, imat material.IMaterial) *LineStrip

NewLineStrip creates and returns a pointer to a new LineStrip graphic with the specified geometry and material

func (*LineStrip) Raycast 

func (l *LineStrip) Raycast(rc *core.Raycaster, intersects *[]core.Intersect)

Raycast satisfies the INode interface and checks the intersections of this geometry with the specified raycaster

func (*LineStrip) RenderSetup 

func (l *LineStrip) RenderSetup(gs *gls.GLS, rinfo *core.RenderInfo)

RenderSetup is called by the engine before drawing this geometry

type Lines 

type Lines struct {
	Graphic
	// contains filtered or unexported fields
}

Lines is a Graphic which is rendered as a collection of independent lines

func NewLines 

func NewLines(igeom geometry.IGeometry, imat material.IMaterial) *Lines

func (*Lines) Init 

func (l *Lines) Init(igeom geometry.IGeometry, imat material.IMaterial)

func (*Lines) Raycast 

func (l *Lines) Raycast(rc *core.Raycaster, intersects *[]core.Intersect)

Raycast satisfies the INode interface and checks the intersections of this geometry with the specified raycaster

func (*Lines) RenderSetup 

func (l *Lines) RenderSetup(gs *gls.GLS, rinfo *core.RenderInfo)

RenderSetup is called by the engine before drawing this geometry

type Mesh 

type Mesh struct {
	Graphic // Embedded graphic
	// contains filtered or unexported fields
}

func NewMesh 

func NewMesh(igeom geometry.IGeometry, imat material.IMaterial) *Mesh

NewMesh creates and returns a pointer to a mesh with the specified geometry and material If the mesh has multi materials, the material specified here must be nil and the individual materials must be add using "AddMateria" or AddGroupMaterial"

func (*Mesh) AddGroupMaterial 

func (m *Mesh) AddGroupMaterial(imat material.IMaterial, gindex int)

Add group material

func (*Mesh) AddMaterial 

func (m *Mesh) AddMaterial(imat material.IMaterial, start, count int)

func (*Mesh) Init 

func (m *Mesh) Init(igeom geometry.IGeometry, imat material.IMaterial)

func (*Mesh) Raycast 

func (m *Mesh) Raycast(rc *core.Raycaster, intersects *[]core.Intersect)

Raycast checks intersections between this geometry and the specified raycaster and if any found appends it to the specified intersects array.

func (*Mesh) RenderSetup 

func (m *Mesh) RenderSetup(gs *gls.GLS, rinfo *core.RenderInfo)

RenderSetup is called by the engine before drawing the mesh geometry It is responsible to updating the current shader uniforms with the model matrices.

type NormalsHelper 

type NormalsHelper struct {
	Lines
	// contains filtered or unexported fields
}

func NewNormalsHelper 

func NewNormalsHelper(ig IGraphic, size float32, color *math32.Color, lineWidth float32) *NormalsHelper

NewNormalsHelper creates, initializes and returns a pointer to Normals helper object. This helper shows the normal vectors of the specified object.

func (*NormalsHelper) Update 

func (nh *NormalsHelper) Update()

Update should be called in the render loop to update the normals from the target object

type Points 

type Points struct {
	Graphic // Embedded graphic
	// contains filtered or unexported fields
}

func NewPoints 

func NewPoints(igeom geometry.IGeometry, imat material.IMaterial) *Points

NewPoints creates and returns a graphic points object with the specified geometry and material.

func (*Points) Raycast 

func (p *Points) Raycast(rc *core.Raycaster, intersects *[]core.Intersect)

Raycast satisfies the INode interface and checks the intersections of this geometry with the specified raycaster

func (*Points) RenderSetup 

func (p *Points) RenderSetup(gs *gls.GLS, rinfo *core.RenderInfo)

RenderSetup is called by the engine before rendering this graphic

type Skybox 

type Skybox struct {
	Graphic // embedded graphic object
	// contains filtered or unexported fields
}

func NewSkybox 

func NewSkybox(data SkyboxData) (*Skybox, error)

NewSkybox creates and returns a pointer to a skybox with the specified textures

func (*Skybox) RenderSetup 

func (skybox *Skybox) RenderSetup(gs *gls.GLS, rinfo *core.RenderInfo)

RenderSetup is called by the engine before drawing the skybox geometry It is responsible to updating the current shader uniforms with the model matrices.

type SkyboxData 

type SkyboxData struct {
	DirAndPrefix string
	Extension    string
	Suffixes     [6]string
}

type Sprite 

type Sprite struct {
	Graphic // Embedded graphic
	// contains filtered or unexported fields
}

func NewSprite 

func NewSprite(width, height float32, imat material.IMaterial) *Sprite

NewSprite creates and returns a pointer to a sprite with the specified dimensions and material

func (*Sprite) Raycast 

func (s *Sprite) Raycast(rc *core.Raycaster, intersects *[]core.Intersect)

Raycast checks intersections between this geometry and the specified raycaster and if any found appends it to the specified intersects array.

func (*Sprite) RenderSetup 

func (s *Sprite) RenderSetup(gs *gls.GLS, rinfo *core.RenderInfo)

Source Files

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