PolylineMaterialAppearance

new PolylineMaterialAppearance()

An appearance for PolylineGeometry that supports shading with materials.
Name Type Default Description
options.translucent Boolean true optional When true, the geometry is expected to appear translucent so PolylineMaterialAppearance#renderState has alpha blending enabled.
options.material Material Material.ColorType optional The material used to determine the fragment color.
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:
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.PolylineMaterialAppearance.VERTEX_FORMAT
    })
  }),
  appearance : new Cesium.PolylineMaterialAppearance({
    material : Cesium.Material.fromType('Color')
  })
}));
See:
Source: Scene/PolylineMaterialAppearance.js, line 57

Members

staticconstantPolylineMaterialAppearance.VERTEX_FORMAT :VertexFormat

The VertexFormat that all PolylineMaterialAppearance instances are compatible with. This requires position and st attributes.
Source: Scene/PolylineMaterialAppearance.js, line 191

readonlyclosed :Boolean

When true, the geometry is expected to be closed so PolylineMaterialAppearance#renderState has backface culling enabled. This is always false for PolylineMaterialAppearance.
Default Value: false
Source: Scene/PolylineMaterialAppearance.js, line 158

readonlyfragmentShaderSource :String

The GLSL source code for the fragment shader.
Source: Scene/PolylineMaterialAppearance.js, line 121

getFragmentShaderSource

Procedurally creates the full GLSL fragment shader source. For PolylineMaterialAppearance, this is derived from PolylineMaterialAppearance#fragmentShaderSource and PolylineMaterialAppearance#material.
Source: Scene/PolylineMaterialAppearance.js, line 201

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/PolylineMaterialAppearance.js, line 221

isTranslucent

Determines if the geometry is translucent based on PolylineMaterialAppearance#translucent and Material#isTranslucent.
Source: Scene/PolylineMaterialAppearance.js, line 210

material :Material

The material used to determine the fragment color. Unlike other PolylineMaterialAppearance properties, this is not read-only, so an appearance's material can change on the fly.
Default Value: Material.ColorType
See:
Source: Scene/PolylineMaterialAppearance.js, line 76

readonlyrenderState :Object

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

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

Source: Scene/PolylineMaterialAppearance.js, line 140

translucent :Boolean

When true, the geometry is expected to appear translucent so PolylineMaterialAppearance#renderState has alpha blending enabled.
Default Value: true
Source: Scene/PolylineMaterialAppearance.js, line 86

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: PolylineMaterialAppearance.VERTEX_FORMAT
Source: Scene/PolylineMaterialAppearance.js, line 176

readonlyvertexShaderSource :String

The GLSL source code for the vertex shader.
Source: Scene/PolylineMaterialAppearance.js, line 107