Sprites.Media.Shader.Parameter

Sprites.Media.Shader.Parameter.Control Void

Sprites.Media.Shader.Parameter.Control(param, index, params)

One parameter card: a top row of the name field, the type dropdown and a Remove button, over the value editor. param is the parameter, index its position and params the two-way list. Remove drops the parameter from the list. Edits rebuild the parameter and lay it back into params at index.

Returns nothing.

const value = Sprites.Media.Shader.FloatValue(0.5);
const param = Sprites.Media.Shader.NewParameter('uAmount', 'float', value);
const params = Sprites.Reactive.Value([param]);
const first = Sprites.Array.At(params, 0);
Sprites.Media.Shader.Parameter.Control(first, 0, params);

Sprites.Media.Shader.Parameter.Name Void

Sprites.Media.Shader.Parameter.Name(param, index, params)

The name field: a text input two-way bound to the parameter's name, the uniform name the GLSL declares. Writing lays the renamed parameter back into the list at index.

Returns nothing.

Sprites.Media.Shader.Parameter.Name(param, 0, params);

Sprites.Media.Shader.Parameter.Type Void

Sprites.Media.Shader.Parameter.Type(param, index, params)

The type dropdown: float, vec2, vec3, vec4 or colour. Changing the type also lays a fresh value of the new shape in place through DefaultValue, so the value editor always matches the type.

Returns nothing.

Sprites.Media.Shader.Parameter.Type(param, 0, params);

Sprites.Media.Shader.Parameter.Value Void

Sprites.Media.Shader.Parameter.Value(param, index, params)

The value editor matched to the parameter's type. Exactly one type matches, so exactly one of the five branches renders; each is its own If over the type, so the editor follows a type change with no imperative teardown.

Returns nothing.

Sprites.Media.Shader.Parameter.Bindingparam, 0, params);

Sprites.Media.Shader.Parameter.Float Void

Sprites.Media.Shader.Parameter.Float(param, index, params)

The value editor for a float parameter: one number field two-way bound to the float. Writing wraps the number as a float value and lays it back into the list.

Returns nothing.

Sprites.Media.Shader.Parameter.Float(param, 0, params);

Sprites.Media.Shader.Parameter.Vec2 Void

Sprites.Media.Shader.Parameter.Vec2(param, index, params)

The value editor for a vec2 parameter: two number fields for x and y. Each field rebuilds the whole vector from its new value and the other, held current by read, so a change to one leaves the other be.

Returns nothing.

Sprites.Media.Shader.Parameter.Vec2(param, 0, params);

Sprites.Media.Shader.Parameter.Vec3 Void

Sprites.Media.Shader.Parameter.Vec3(param, index, params)

The value editor for a vec3 parameter: three number fields for x, y and z, each rebuilding the whole vector from its new value and the two others held current by read.

Returns nothing.

Sprites.Media.Shader.Parameter.Vec3(param, 0, params);

Sprites.Media.Shader.Parameter.Vec4 Void

Sprites.Media.Shader.Parameter.Vec4(param, index, params)

The value editor for a vec4 parameter: four number fields for x, y, z and w, each rebuilding the whole vector from its new value and the three others held current by read.

Returns nothing.

Sprites.Media.Shader.Parameter.Vec4(param, 0, params);

Sprites.Media.Shader.Parameter.Colour Void

Sprites.Media.Shader.Parameter.Colour(param, index, params)

The value editor for a colour parameter: a colour picker over the vec4 stored as red, green, blue and alpha, each 0 to 1. The picker binds a packed 0xRRGGBBAA colour, so the value is packed from the four channels for the picker and unpacked back to four 0 to 1 floats on a pick.

Returns nothing.

Sprites.Media.Shader.Parameter.Colour(param, 0, params);