English | 简体中文

PointCloudShading

new Cesium.PointCloudShading(options)
engine/Source/Scene/PointCloudShading.js 22

Options for performing point attenuation based on geometric error when rendering point clouds using 3D Tiles.
Name Type Description
options object optional Object with the following properties:
Name Type Default Description
attenuation boolean false optional Perform point attenuation based on geometric error.
geometricErrorScale number 1.0 optional Scale to be applied to each tile's geometric error.
maximumAttenuation number optional Maximum attenuation in pixels. Defaults to the Cesium3DTileset's maximumScreenSpaceError.
baseResolution number optional Average base resolution for the dataset in meters. Substitute for Geometric Error when not available.
eyeDomeLighting boolean true optional When true, use eye dome lighting when drawing with point attenuation.
eyeDomeLightingStrength number 1.0 optional Increasing this value increases contrast on slopes and edges.
eyeDomeLightingRadius number 1.0 optional Increase the thickness of contours from eye dome lighting.
backFaceCulling boolean false optional Determines whether back-facing points are hidden. This option works only if data has normals included.
normalShading boolean true optional Determines whether a point cloud that contains normals is shaded by the scene's light source.

Members

attenuation : boolean
engine/Source/Scene/PointCloudShading.js 30

Perform point attenuation based on geometric error.
Default Value: false

backFaceCulling : boolean
engine/Source/Scene/PointCloudShading.js 93

Determines whether back-facing points are hidden. This option works only if data has normals included.
Default Value: false

baseResolution : number
engine/Source/Scene/PointCloudShading.js 54

Average base resolution for the dataset in meters. Used in place of geometric error when geometric error is 0. If undefined, an approximation will be computed for each tile that has geometric error of 0.

eyeDomeLighting : boolean
engine/Source/Scene/PointCloudShading.js 64

Use eye dome lighting when drawing with point attenuation Requires support for EXT_frag_depth, OES_texture_float, and WEBGL_draw_buffers extensions in WebGL 1.0, otherwise eye dome lighting is ignored.
Default Value: true

eyeDomeLightingRadius : number
engine/Source/Scene/PointCloudShading.js 81

Thickness of contours from eye dome lighting
Default Value: 1.0

eyeDomeLightingStrength : number
engine/Source/Scene/PointCloudShading.js 71

Eye dome lighting strength (apparent contrast)
Default Value: 1.0

geometricErrorScale : number
engine/Source/Scene/PointCloudShading.js 37

Scale to be applied to the geometric error before computing attenuation.
Default Value: 1.0

maximumAttenuation : number
engine/Source/Scene/PointCloudShading.js 46

Maximum point attenuation in pixels. If undefined, the Cesium3DTileset's maximumScreenSpaceError will be used.

normalShading : boolean
engine/Source/Scene/PointCloudShading.js 101

Determines whether a point cloud that contains normals is shaded by the scene's light source.
Default Value: true

Methods

static Cesium.PointCloudShading.isSupported(scene) → boolean
engine/Source/Scene/PointCloudShading.js 110

Determines if point cloud shading is supported.
Name Type Description
scene Scene The scene.
Returns:
true if point cloud shading is supported; otherwise, returns false
Need help? The fastest way to get answers is from the community and team on the Cesium Forum.
packages/engine
packages/widgets