PolylineColorAppearance

new PolylineColorAppearance()

An appearance for GeometryInstance instances with color attributes and PolylineGeometry. This allows several geometry instances, each with a different color, to be drawn with the same Primitive.

Name	Type	Default	Description
`options.translucent`	Boolean	`true`	optional When `true`, the geometry is expected to appear translucent so `PolylineColorAppearance#renderState` has alpha blending enabled.
`options.vertexShaderSource`	String		optional Optional GLSL vertex shader source to override the default vertex shader.
`options.fragmentShaderSource`	String		optional Optional GLSL fragment shader source to override the default fragment shader.
`options.renderState`	RenderState		optional Optional render state to override the default render state.

Example:

// A solid white line segment
var primitive = new Cesium.Primitive({
  geometryInstances : new Cesium.GeometryInstance({
    geometry : new Cesium.PolylineGeometry({
      positions : Cesium.Cartesian3.fromDegreesArray([
        0.0, 0.0,
        5.0, 0.0
      ]),
      width : 10.0,
      vertexFormat : Cesium.PolylineColorApperance.VERTEX_FORMAT
    }),
    attributes : {
      color : Cesium.ColorGeometryInstanceAttribute.fromColor(new Cesium.Color(1.0, 1.0, 1.0, 1.0))
    }
  }),
  appearance : new Cesium.PolylineColorAppearance({
    translucent : false
  })
}));

Source: Scene/PolylineColorAppearance.js, line 56

Members

staticconstantPolylineColorAppearance.VERTEX_FORMAT :VertexFormat

The VertexFormat that all PolylineColorAppearance instances are compatible with. This requires only a position attribute.

Source: Scene/PolylineColorAppearance.js, line 187

readonlyclosed :Boolean

When true, the geometry is expected to be closed so PolylineColorAppearance#renderState has backface culling enabled. This is always false for PolylineColorAppearance.

Default Value: false

Source: Scene/PolylineColorAppearance.js, line 154

readonlyfragmentShaderSource :String

The GLSL source code for the fragment shader.

Source: Scene/PolylineColorAppearance.js, line 118

getFragmentShaderSource

Procedurally creates the full GLSL fragment shader source.

Source: Scene/PolylineColorAppearance.js, line 196

getRenderState

Creates a render state. This is not the final RenderState instance; instead, it can contain a subset of render state properties identical to renderState passed to Context#createRenderState.

Source: Scene/PolylineColorAppearance.js, line 216

isTranslucent

Determines if the geometry is translucent based on PolylineColorAppearance#translucent.

Source: Scene/PolylineColorAppearance.js, line 205

material :Material

This property is part of the Appearance interface, but is not used by PolylineColorAppearance since a fully custom fragment shader is used.

Default Value: undefined

Source: Scene/PolylineColorAppearance.js, line 73

readonlyrenderState :Object

The WebGL fixed-function state to use when rendering the geometry.

The render state can be explicitly defined when constructing a PolylineColorAppearance instance, or it is set implicitly via PolylineColorAppearance#translucent.

Source: Scene/PolylineColorAppearance.js, line 136

translucent :Boolean

When true, the geometry is expected to appear translucent so PolylineColorAppearance#renderState has alpha blending enabled.

Default Value: true

Source: Scene/PolylineColorAppearance.js, line 83

readonlyvertexFormat :VertexFormat

The VertexFormat that this appearance instance is compatible with. A geometry can have more vertex attributes and still be compatible - at a potential performance cost - but it can't have less.

Default Value: PolylineColorAppearance.VERTEX_FORMAT

Source: Scene/PolylineColorAppearance.js, line 172

readonlyvertexShaderSource :String

The GLSL source code for the vertex shader.

Source: Scene/PolylineColorAppearance.js, line 104