camera

package

v0.0.0-...-ce4c9c0 Latest Latest Go to latest Published: May 20, 2021 License: BSD-2-Clause Imports: 2 Imported by: 2

Details

Valid go.mod file

The Go module system was introduced in Go 1.11 and is the official dependency management solution for Go.
Redistributable license

Redistributable licenses place minimal restrictions on how software can be used, modified, and redistributed.
Tagged version

Modules with tagged versions give importers more predictable builds.
Stable version

When a project reaches major version v1 it is considered stable.
Learn more about best practices

Repository

github.com/kasworld/h4o

Links

Open Source Insights

Documentation ¶

Overview ¶

Package camera contains virtual cameras and associated controls.

Constants ¶

View Source

const (
	Vertical = Axis(iota)
	Horizontal
)

The two possible camera axes.

View Source

const (
	Perspective = Projection(iota)
	Orthographic
)

The possible camera projections.

Variables ¶

This section is empty.

Functions ¶

This section is empty.

Types ¶

type Axis ¶

type Axis int

Axis represents a camera axis.

type Camera ¶

type Camera struct {
	node.Node // Embedded Node
	// contains filtered or unexported fields
}

Camera represents a virtual camera, which specifies how to project a 3D scene onto an image.

func New ¶

func New(aspect float32) *Camera

New creates and returns a new perspective camera with the specified aspect ratio and default parameters.

func NewOrthographic ¶

func NewOrthographic(aspect, near, far, size float32, axis Axis) *Camera

NewOrthographic creates and returns a new orthographic camera with the specified parameters.

func NewPerspective ¶

func NewPerspective(aspect, near, far, fov float32, axis Axis) *Camera

NewPerspective creates and returns a new perspective camera with the specified parameters.

func (*Camera) Aspect ¶

func (c *Camera) Aspect() float32

Aspect returns the camera aspect ratio.

func (*Camera) Axis ¶

func (c *Camera) Axis() Axis

Axis returns the reference axis associated with the camera size/fov.

func (*Camera) Far ¶

func (c *Camera) Far() float32

Far returns the camera far plane Z coordinate.

func (*Camera) Fov ¶

func (c *Camera) Fov() float32

Fov returns the perspective field-of-view in degrees along the reference axis.

func (*Camera) Near ¶

func (c *Camera) Near() float32

Near returns the camera near plane Z coordinate.

func (*Camera) ProjMatrix ¶

func (c *Camera) ProjMatrix(m *math32.Matrix4)

ProjMatrix returns the projection matrix of the camera.

func (*Camera) Project ¶

func (c *Camera) Project(v *math32.Vector3) *math32.Vector3

Project transforms the specified position from world coordinates to this camera projected coordinates.

func (*Camera) Projection ¶

func (c *Camera) Projection() Projection

Projection returns the projection method used by the camera.

func (*Camera) SetAspect ¶

func (c *Camera) SetAspect(aspect float32)

SetAspect sets the camera aspect ratio.

func (*Camera) SetAxis ¶

func (c *Camera) SetAxis(axis Axis)

SetAxis sets the reference axis associated with the camera size/fov.

func (*Camera) SetFar ¶

func (c *Camera) SetFar(far float32)

SetFar sets the camera far plane Z coordinate.

func (*Camera) SetFov ¶

func (c *Camera) SetFov(fov float32)

SetFov sets the perspective field-of-view in degrees along the reference axis.

func (*Camera) SetNear ¶

func (c *Camera) SetNear(near float32)

SetNear sets the camera near plane Z coordinate.

func (*Camera) SetProjection ¶

func (c *Camera) SetProjection(proj Projection)

SetProjection sets the projection method used by the camera.

func (*Camera) SetSize ¶

func (c *Camera) SetSize(size float32)

SetSize sets the orthographic view size along the camera's reference axis.

func (*Camera) Size ¶

func (c *Camera) Size() float32

Size returns the orthographic view size along the camera's reference axis.

func (*Camera) Unproject ¶

func (c *Camera) Unproject(v *math32.Vector3) *math32.Vector3

Unproject transforms the specified position from camera projected coordinates to world coordinates.

func (*Camera) UpdateFov ¶

func (c *Camera) UpdateFov(targetDist float32)

UpdateFov updates the field-of-view such that the frustum matches the orthographic size at the depth specified by targetDist.

func (*Camera) UpdateSize ¶

func (c *Camera) UpdateSize(targetDist float32)

UpdateSize updates the orthographic size to match the current field-of-view frustum at the depth specified by targetDist.

func (*Camera) ViewMatrix ¶

func (c *Camera) ViewMatrix(m *math32.Matrix4)

ViewMatrix returns the view matrix of the camera.

type Projection ¶

type Projection int

Projection represents a camera projection.

Source Files ¶

View all Source files

camera.go

Directories ¶

Path	Synopsis
orbit

?	: This menu
/	: Search site
f or F	: Jump to
y or Y	: Canonical URL