Graphics.Rendering.Ombra.Draw

Documentation

data Buffer

Constructors

ColorBuffer

DepthBuffer

StencilBuffer

data DrawState

The state of the Draw monad.

refDrawCtx :: GLES => Ctx -> Draw a -> IORef DrawState -> IO a

Run a Draw action using an IORef and a context.

runDrawCtx

Arguments

:: Ctx

Context (use the appropriate backend functions)

-> Draw a

Draw action

-> DrawState

State (create it with drawState)

-> IO (a, DrawState)

execDrawCtx :: Ctx -> Draw a -> DrawState -> IO DrawState

evalDrawCtx :: Ctx -> Draw a -> DrawState -> IO a

drawInit :: GLES => Draw ()

drawState

Arguments

:: GLES

=> Int

Viewport width

-> Int

Viewport height

-> IO DrawState

Create a DrawState.

clearBuffers :: GLES => [Buffer] -> Draw ()

drawLayer :: GLES => Layer -> Draw ()

Draw a Layer.

drawGet :: Draw DrawState

Get the DrawState.

removeGeometry :: GLES => Geometry is -> Draw ()

Manually delete a Geometry from the GPU (this is automatically done when the Geometry becomes unreachable). Note that if you try to draw it, it will be allocated again.

removeTexture :: GLES => Texture -> Draw ()

Manually delete a Texture from the GPU.

removeProgram :: GLES => Program gs is -> Draw ()

Manually delete a Program from the GPU.

resizeViewport

Arguments

:: GLES

=> Int

Width.

-> Int

Height.

-> Draw ()

Viewport.

renderLayer :: GLES => RenderLayer a -> Draw (a, [Texture])

Realize a RenderLayer. It returns the list of allocated Textures so that you can free them if you want.

gl :: GL a -> Draw a

Perform a GL action in the Draw monad.