:: GLES
=> [V2]	List of vertices.
-> [V2]	List of UV coordinates.
-> [Word16]	Triangles expressed as triples of indices to the two lists above.
-> Geometry Geometry2

Create a 2D Geometry. The first two lists should have the same length.

Textures

module FWGL.Graphics.Color

data Texture

A texture.

textureURL

Arguments

:: String	URL
-> Texture

Creates a Texture from an URL or a local file.

textureFile :: String -> Texture

The same as textureURL.

colorTex :: GLES => Color -> Texture

Generate a 1x1 texture.

mkTexture

Arguments

:: GLES
=> Int	Width.
-> Int	Height.
-> [Color]	List of pixels
-> Texture

Creates a Texture from a list of pixels.

Transformations

data V2

Two-dimensional vector.

Constructors

V2 !Float !Float

Instances

Eq V2
Show V2
Storable V2
Hashable V2
GLES => AttributeCPU V2 V2
GLES => AttributeCPU CV2 UV
GLES => AttributeCPU CV2 Position2
GLES => AttributeCPU CV2 UV
GLES => UniformCPU V2 V2

pos :: V2 -> Element -> Element

Translate an Element.

rot :: Float -> Element -> Element

Rotate an Element.

scale :: Float -> Element -> Element

Scale an Element.

scaleV :: V2 -> Element -> Element

Scale an Element in two dimensions.

transform :: M3 -> Element -> Element

Transform an Element.

Layers

data Layer

An object associated with a program.

Element layers

elements :: BackendIO => [Element] -> Layer

Create a standard Layer from a list of Elements.

view :: BackendIO => M3 -> [Element] -> Layer

Create a Layer from a view matrix and a list of Elements.

Object layers

layer :: BackendIO => Object DefaultUniforms2D Geometry2 -> Layer

Create a Layer from a 2D Object, using the default shader.

layerPrg :: (BackendIO, Subset og pg) => Program pg Geometry2 -> Object og Geometry2 -> Layer

Create a Layer from a 2D Object, using a custom shader.

program :: (Subset gs' gs, Subset gs'' gs, Subset os' os) => VertexShader gs' is os -> FragmentShader gs'' os' -> Program gs is

Create a Program from the shaders.

Sublayers

subLayer

Arguments

:: Int	Texture width.
-> Int	Texture height.
-> Layer	Layer to draw on a `Texture`.
-> (Texture -> [Layer])	Layer to draw on the screen.
-> Layer

Use a Layer as a Texture on another.

Custom 2D objects

data Object gs is

An object is a set of geometries associated with some uniforms.

object :: BackendIO => M3 -> [Element] -> Object DefaultUniforms2D Geometry2

Create a graphical Object from a list of Elements and a view matrix.

object1 :: BackendIO => Element -> Object `[Image, Depth, Transform2]` Geometry2

Create a graphical Object from a single Element. This lets you set your own globals individually. If the shader uses the view matrix View2 (e.g. the default 2D shader), you have to set it with viewObject.

(~~) :: (Equal gs gs', Equal is is') => Object gs is -> Object gs' is' -> Object (Union gs gs') (Union is is')

Join two objects.

Globals

global :: (Typeable g, UniformCPU c g) => g -> c -> Object gs is -> Object (g : gs) is

Sets a global (uniform) of an object.

globalTexture :: (BackendIO, Typeable g, UniformCPU ActiveTexture g) => g -> Texture -> Object gs is -> Object (g : gs) is

Sets a global (uniform) of an object using a Texture.

globalTexSize :: (BackendIO, Typeable g, UniformCPU c g) => g -> Texture -> ((Int, Int) -> c) -> Object gs is -> Object (g : gs) is

Sets a global (uniform) of an object using the dimensions of a Texture.

viewObject :: BackendIO => M3 -> Object gs Geometry2 -> Object (View2 : gs) Geometry2

Set the value of the view matrix of a 2D Object.

type DefaultUniforms2D = Uniforms

The uniforms used in the default 2D program.

data Image

An uniform that represents the texture used in the default 2D shader.

Instances

ShaderType Image
Typeable * Image
GLES => UniformCPU CSampler2D Image

data Depth

An uniform that represents the depth used in the default 2D shader.

Instances

ShaderType Depth
Typeable * Depth
GLES => UniformCPU CFloat Depth

data Transform2

An uniform that represents the transformation matrix used in the default 2D shader.

Instances

ShaderType Transform2
Typeable * Transform2
GLES => UniformCPU CM3 Transform2

data View2

An uniform that represents the view matrix used in the default 2D shader.

Instances

ShaderType View2
Typeable * View2
GLES => UniformCPU CM3 View2

3D matrices

data V3

Three-dimensional vector.

Constructors

V3 !Float !Float !Float

Instances

Eq V3
Show V3
Storable V3
Hashable V3
GLES => AttributeCPU V3 V3
GLES => AttributeCPU CV3 Normal3
GLES => AttributeCPU CV3 Position3
GLES => UniformCPU V3 V3