Graphics.VinylGL.Uniforms

Tools for binding vinyl records to GLSL program uniform parameters. The most common usage is to use the setUniforms function to set each field of a PlainRec to the GLSL uniform parameter with the same name. This verifies that each field of the record corresponds to a uniform parameter of the given shader program, and that the types all agree.

Documentation

setAllUniforms :: forall ts. UniformFields (PlainFieldRec ts) => ShaderProgram -> PlainFieldRec ts -> IO ()

Set GLSL uniform parameters from a PlainRec. A check is performed to verify that all uniforms used by a program are represented by the record type. In other words, the record is a superset of the parameters used by the program.

setSomeUniforms :: forall ts. UniformFields (PlainFieldRec ts) => ShaderProgram -> PlainFieldRec ts -> IO ()

Set GLSL uniform parameters from those fields of a PlainRec whose names correspond to uniform parameters used by a program.

setUniforms :: forall ts. UniformFields (PlainFieldRec ts) => ShaderProgram -> PlainFieldRec ts -> IO ()

Set GLSL uniform parameters from a PlainRec representing a subset of all uniform parameters used by a program.

class HasFieldGLTypes a where

Provide the VariableType of each field in a Rec. The list of types has the same order as the fields of the Rec.

Methods

fieldGLTypes :: a -> [VariableType]

Instances

(HasVariableType t, HasFieldGLTypes (PlainFieldRec ts)) => HasFieldGLTypes (PlainFieldRec ((:) * ((:::) Symbol sy t) ts))

HasFieldGLTypes (FieldRec f ([] *))

type UniformFields a = (HasFieldNames a, HasFieldGLTypes a, SetUniformFields a)

Constraint synonym for PlainFieldRecs that carry valid GLSL uniforms.

class SetUniformFields a

Zips up lists of UniformLocations and a PlainFieldRec setting uniform parameters using the record fields.

Minimal complete definition

setUniformFields

Instances

(AsUniform t, SetUniformFields (PlainFieldRec ts)) => SetUniformFields (PlainFieldRec ((:) * ((:::) Symbol sy t) ts))

SetUniformFields (FieldRec f ([] *))