Graphics.RecordGL.Vertex

Utilities for working with vertex buffer objects (VBOs) filled with vertices represented as Records.

Documentation

bufferVertices :: (Storable rs, BufferSource (v rs)) => v rs -> IO (BufferedVertices rs)

Load vertex data into a GPU-accessible buffer.

bindVertices :: BufferedVertices a -> IO ()

Bind previously-buffered vertex data.

reloadVertices :: Storable rs => BufferedVertices rs -> Vector rs -> IO ()

Reload BufferedVertices with a Vector of new vertex data.

deleteVertices :: BufferedVertices a -> IO ()

Delete the object name associated with BufferedVertices

enableVertices :: forall f r. ViableVertex r => ShaderProgram -> f r -> IO (Maybe String)

Line up a shader's attribute inputs with a vertex record. This maps vertex fields to GLSL attributes on the basis of record field names on the Haskell side, and variable names on the GLSL side.

enableVertices' :: forall f r. ViableVertex r => ShaderProgram -> f r -> IO ()

Behaves like enableVertices, but raises an exception if the supplied vertex record does not include a field required by the shader.

enableVertexFields :: forall p r. ViableVertex r => ShaderProgram -> p r -> IO ()

Bind some of a shader's attribute inputs to a vertex record. This is useful when the inputs of a shader are split across multiple arrays.

fieldToVAD :: forall sy r v a proxy. (Field' sy r (v a), HasFieldNames r, HasFieldSizes r, HasGLType a, Storable r, Num (v a), KnownSymbol sy, Foldable v) => FieldName sy -> r -> VertexArrayDescriptor a

Produce a VertexArrayDescriptor for a particular field of a vertex record. fieldToVAD :: forall r v a sy proxy. ( Foldable v) => String -> proxy r -> GL.VertexArrayDescriptor a

type ViableVertex t = (HasFieldNames t, HasFieldSizes t, HasFieldDims t, HasFieldGLTypes t, Storable t)

Constraint alias capturing the requirements of a vertex type.

data BufferedVertices a

Representation of a VBO whose type describes the vertices.

Constructors

BufferedVertices

Fields

getVertexBuffer :: BufferObject