Graphics.Gloss.Accelerate.Raster.Field

Rendering of 2D functions as raster fields

Documentation

module Graphics.Gloss.Accelerate.Data.Point

module Graphics.Gloss.Accelerate.Data.Color

Display functions

type Render = forall a b. (Arrays a, Arrays b) => (Acc a -> Acc b) -> a -> b

The type of executing Accelerate computations. The CUDA and Interpreter backends both provide a function run1 that can be used.

Some variants of the display functions take an argument of this type, which determine how computations are executed.

data Display

Describes how Gloss should display its output.

Constructors

InWindow String (Int, Int) (Int, Int)

Display in a window with the given name, size and position.

FullScreen (Int, Int)

Display full screen with a drawing area of the given size.

Instances

Eq Display

Read Display

Show Display

animateField

Arguments

:: Display

Display mode

-> (Int, Int)

Number of pixels to draw per point

-> (Exp Float -> Exp Point -> Exp Color)

A function to compute the colour at a particular point.

It is passed the time in seconds since the program started, and a point between (-1,1) and (+1,1).

-> IO ()

Animate a continuous 2D function using the default backend

animateFieldWith

Arguments

:: Render

Method to render the field

-> Display

Display mode

-> (Int, Int)

Number of pixels to draw per point

-> (Exp Float -> Exp Point -> Exp Color)

A function to compute the colour at a particular point.

It is passed the time in seconds since the program started, and a point between (-1,1) and (+1,1).

-> IO ()

Animate a continuous 2D function, specifying the backend used to render the field.

playField

Arguments

:: Arrays world

=> Display

Display mode

-> (Int, Int)

Number of pixels to draw per point

-> Int

Number of simulation steps to take for each second of real time

-> state

The initial state

-> (state -> world)

Extract the world state

-> (Acc world -> Exp Point -> Exp Color)

Compute the colour of the world at a given point

-> (Event -> state -> state)

Handle input events

-> (Float -> state -> state)

Step the world one iteration. It is passed the time in seconds since the program started.

-> IO ()

Play a game with a continuous 2D function using the default backend.

playFieldWith

Arguments

:: Arrays world

=> Render

Method to render the field

-> Display

Display mode

-> (Int, Int)

Number of pixels to draw per point

-> Int

Number of simulation steps to take for each second of real time

-> state

The initial state

-> (state -> world)

Extract the world state

-> (Acc world -> Exp Point -> Exp Color)

Compute the colour of the world at a given point

-> (Event -> state -> state)

Handle input events

-> (Float -> state -> state)

Step the world one iteration. It is passed the time in seconds since the program started.

-> IO ()

Play a game with a continuous 2D function, specifying the method used to render the field.

Field creation

makeField

Arguments

:: Int

image width

-> Int

image height

-> (world -> Exp Point -> Exp Color)

function to apply at each point

-> world -> Acc (Array DIM2 Color)

new function that generates the field

Lift a point-wise colouring function into an image creation function.

The parameter world at this point can be arbitrary. However if you use this function standalone, you will probably at some point want the result of this function to plug into makePicture and thus Render, and thus be a unary function from Arrays to Arrays.