| Safe Haskell | None |
|---|---|
| Language | Haskell98 |
Graphics.Gloss.Raster.Field
Description
Rendering of continuous 2D functions as raster fields.
Gloss programs should be compiled with -threaded, otherwise the GHC runtime
will limit the frame-rate to around 20Hz.
The performance of programs using this interface is sensitive to how much boxing and unboxing the GHC simplifier manages to eliminate. For the best result add INLINE pragmas to all of your numeric functions and use the following compile options.
-threaded -Odph -fno-liberate-case -funfolding-use-threshold1000 -funfolding-keeness-factor1000 -fllvm -optlo-O3
See the examples the raster directory of the gloss-examples package
for more details.
Synopsis
- module Graphics.Gloss.Data.Color
- rgb :: Float -> Float -> Float -> Color
- rgbI :: Int -> Int -> Int -> Color
- rgb8w :: Word8 -> Word8 -> Word8 -> Color
- rgb' :: Float -> Float -> Float -> Color
- rgbI' :: Int -> Int -> Int -> Color
- data Display
- type Point = (Float, Float)
- animateField :: Display -> (Int, Int) -> (Float -> Point -> Color) -> IO ()
- playField :: Display -> (Int, Int) -> Int -> world -> (world -> Point -> Color) -> (Event -> world -> world) -> (Float -> world -> world) -> IO ()
- makePicture :: Int -> Int -> Int -> Int -> (Point -> Color) -> Picture
- makeFrame :: Int -> Int -> (Point -> Color) -> Array (I D) DIM2 (Word8, Word8, Word8)
Color
module Graphics.Gloss.Data.Color
rgb :: Float -> Float -> Float -> Color Source #
Construct a color from red, green, blue components.
Each component is clamped to the range [0..1]
rgbI :: Int -> Int -> Int -> Color Source #
Construct a color from red, green, blue components.
Each component is clamped to the range [0..255]
rgb8w :: Word8 -> Word8 -> Word8 -> Color Source #
Construct a color from red, green, blue components.
rgb' :: Float -> Float -> Float -> Color Source #
Like rgb, but take pre-clamped components for speed.
If you're building a new color for every pixel then use this version, however if your components are out of range then the picture you get will be implementation dependent.
rgbI' :: Int -> Int -> Int -> Color Source #
Like rgbI, but take pre-clamped components for speed.
If you're building a new color for every pixel then use this version, however if your components are out of range then the picture you get will be implementation dependent.
Display functions
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 | Display full screen. |
Arguments
| :: Display | Display mode. |
| -> (Int, Int) | Number of pixels to draw per point. |
| -> (Float -> Point -> Color) | Function to compute the color 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.
Arguments
| :: 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 |
| -> world | The initial world. |
| -> (world -> Point -> Color) | Function to compute the color of the world at the given point. |
| -> (Event -> world -> world) | Function to handle input events. |
| -> (Float -> world -> world) | Function to step the world one iteration. It is passed the time in seconds since the program started. |
| -> IO () |
Play a game with a continous 2D function.