Polylines and textured ground primitives on 3D Tiles

Apps/SampleData/ClampToGround.czml

@@ -37,5 +37,33 @@
         0.7686388857813198
       ]
     }
+  },
+  {
+    "id": "Polyline",
+    "polyline": {
+      "positions": {
+        "cartesian": [
+          1216348.1632364073,
+          -4736348.958775471,
+          4081284.5528982095,
+          1216369.1229444197,
+          -4736377.467107148,
+          4081240.888485707
+        ]
+      },
+      "material": {
+        "polylineOutline": {
+          "color": {
+              "rgba": [255, 255, 0, 255]
+          },
+          "outlineColor": {
+              "rgba": [0, 0, 0, 255]
+          },
+          "outlineWidth": 2
+        }
+      },
+      "width": 10,
+      "clampToGround": true
+    }
   }
 ]

Apps/Sandcastle/gallery/Classification Types.html

@@ -30,7 +30,6 @@
 var viewer = new Cesium.Viewer('cesiumContainer', {
     terrainProvider: Cesium.createWorldTerrain()
 });
-viewer.scene.globe.depthTestAgainstTerrain = false;
 
 var tileset = new Cesium.Cesium3DTileset({ url: Cesium.IonResource.fromAssetId(6074) });
 viewer.scene.primitives.add(tileset);
@@ -41,31 +40,73 @@
     viewer.camera.lookAtTransform(Cesium.Matrix4.IDENTITY);
 });
 
-var entity = viewer.entities.add({
+var polygon = viewer.entities.add({
     polygon : {
         hierarchy : new Cesium.PolygonHierarchy(Cesium.Cartesian3.fromRadiansArray([-1.3194369277314022, 0.6988062530900625, -1.3193955980204217, 0.6988091578771254, -1.3193931220959367, 0.698743632490865, -1.3194358224045408, 0.6987471965556998])),
         material : Cesium.Color.RED.withAlpha(0.5),
         classificationType : Cesium.ClassificationType.BOTH
     }
 });
 
-var options = [{
+var polyline = viewer.entities.add({
+    polyline : {
+        positions : Cesium.Cartesian3.fromDegreesArray([
+            -75.60217330403601, 40.04102882709425,
+            -75.59968252414251, 40.04093615560871,
+            -75.59802015382800, 40.04079437042357,
+            -75.59674934074435, 40.040816173283304,
+            -75.59630042791713, 40.03986900370842,
+            -75.59563636849978, 40.03930996506271,
+            -75.59492397899098, 40.03873932846581,
+            -75.59457991226778, 40.038392701955786,
+            -75.59424838652453, 40.03775403572295,
+            -75.59387104290336, 40.03677022167725,
+            -75.59355000490342, 40.03588760913535
+        ]),
+        width : 8,
+        material : new Cesium.PolylineOutlineMaterialProperty({
+            color : Cesium.Color.YELLOW,
+            outlineWidth : 2,
+            outlineColor : Cesium.Color.BLACK
+        }),
+        clampToGround : true
+    }
+});
+
+var classificationOptions = [{
     text : 'Classify Both',
     onselect : function() {
-        entity.polygon.classificationType = Cesium.ClassificationType.BOTH;
+        polygon.polygon.classificationType = Cesium.ClassificationType.BOTH;
+        polyline.polyline.classificationType = Cesium.ClassificationType.BOTH;
     }
 }, {
     text : 'Classify Terrain',
     onselect : function() {
-        entity.polygon.classificationType = Cesium.ClassificationType.TERRAIN;
+        polygon.polygon.classificationType = Cesium.ClassificationType.TERRAIN;
+        polyline.polyline.classificationType = Cesium.ClassificationType.TERRAIN;
     }
 }, {
     text : 'Classify 3D Tiles',
     onselect : function() {
-        entity.polygon.classificationType = Cesium.ClassificationType.CESIUM_3D_TILE;
+        polygon.polygon.classificationType = Cesium.ClassificationType.CESIUM_3D_TILE;
+        polyline.polyline.classificationType = Cesium.ClassificationType.CESIUM_3D_TILE;
     }
 }];
-Sandcastle.addToolbarMenu(options);
+
+var materialOptions = [{
+    text : 'Red Material',
+    onselect : function() {
+        polygon.polygon.material = Cesium.Color.RED.withAlpha(0.5);
+    }
+}, {
+    text : 'Textured Material',
+    onselect : function() {
+        polygon.polygon.material = '../images/Cesium_Logo_Color.jpg';
+    }
+}];
+
+Sandcastle.addToolbarMenu(classificationOptions);
+Sandcastle.addToolbarMenu(materialOptions);
 //Sandcastle_End
 Sandcastle.finishedLoading();
 }

CHANGES.md

@@ -3,13 +3,22 @@ Change Log
 
 ### 1.54 - 2019-02-01
 
+##### Breaking Changes :mega:
+* Billboards with `HeightReference.CLAMP_TO_GROUND` are now clamped to both terrain and 3D Tiles. [#7434](https://github.com/AnalyticalGraphicsInc/cesium/pull/7434)
+* The default `classificationType` for `GroundPrimitive`, `CorridorGraphics`, `EllipseGraphics`, `PolygonGraphics` and `RectangleGraphics` is now `ClassificationType.BOTH`. [#7434](https://github.com/AnalyticalGraphicsInc/cesium/pull/7434)
+
 ##### Deprecated :hourglass_flowing_sand:
 * `Scene.clampToHeight` now takes an optional `width` argument before the `result` argument.  The previous function definition will no longer work in 1.56. [#7287](https://github.com/AnalyticalGraphicsInc/cesium/pull/7287)
 
 ##### Additions :tada:
+* Added support for textured ground entities (entities with unspecified `height`) and `GroundPrimitives` on 3D Tiles. [#7434](https://github.com/AnalyticalGraphicsInc/cesium/pull/7434)
+* Added support for polylines on 3D Tiles. [#7437](https://github.com/AnalyticalGraphicsInc/cesium/pull/7437)
+* Added `classificationType` property to `PolylineGraphics` and `GroundPolylinePrimitive` which specifies whether a polyline clamped to ground should be clamped to terrain, 3D Tiles, or both. [#7437](https://github.com/AnalyticalGraphicsInc/cesium/pull/7437)
 * Added the ability to specify the width of the intersection volume for `Scene.sampleHeight`, `Scene.clampToHeight`, `Scene.sampleHeightMostDetailed`, and `Scene.clampToHeightMostDetailed`. [#7287](https://github.com/AnalyticalGraphicsInc/cesium/pull/7287)
 
 ##### Fixes :wrench:
+* Fixed an issue where classification primitives with the `CESIUM_3D_TILE` classification type would render on terrain. [#7422](https://github.com/AnalyticalGraphicsInc/cesium/pull/7422)
+* Fixed an issue where 3D Tiles would show through the globe. [#7422](https://github.com/AnalyticalGraphicsInc/cesium/pull/7422)
 * Fixed crash when entity geometry show value is an interval that only covered part of the entity availability range [#7458](https://github.com/AnalyticalGraphicsInc/cesium/pull/7458)
 * Fixed image size issue when using multiple particle systems [#7412](https://github.com/AnalyticalGraphicsInc/cesium/pull/7412)
 

Source/Core/GroundPolylineGeometry.js

@@ -70,7 +70,7 @@ define([
     var WALL_INITIAL_MAX_HEIGHT = 1000.0;
 
     /**
-     * A description of a polyline on terrain. Only to be used with {@link GroundPolylinePrimitive}.
+     * A description of a polyline on terrain or 3D Tiles. Only to be used with {@link GroundPolylinePrimitive}.
      *
      * @alias GroundPolylineGeometry
      * @constructor
@@ -159,7 +159,7 @@ define([
      * Set the GroundPolylineGeometry's projection and ellipsoid.
      * Used by GroundPolylinePrimitive to signal scene information to the geometry for generating 2D attributes.
      *
-     * @param {GroundPolylineGeometry} groundPolylineGeometry GroundPolylinGeometry describing a polyline on terrain.
+     * @param {GroundPolylineGeometry} groundPolylineGeometry GroundPolylinGeometry describing a polyline on terrain or 3D Tiles.
      * @param {Projection} mapProjection A MapProjection used for projecting cartographic coordinates to 2D.
      * @private
      */
@@ -386,7 +386,7 @@ define([
     var intersectionScratch = new Cartesian3();
     /**
      * Computes shadow volumes for the ground polyline, consisting of its vertices, indices, and a bounding sphere.
-     * Vertices are "fat," packing all the data needed in each volume to describe a line on terrain.
+     * Vertices are "fat," packing all the data needed in each volume to describe a line on terrain or 3D Tiles.
      * Should not be called independent of {@link GroundPolylinePrimitive}.
      *
      * @param {GroundPolylineGeometry} groundPolylineGeometry

Source/DataSources/CorridorGraphics.js

@@ -41,6 +41,7 @@ define([
      * @param {Property} [options.granularity=Cesium.Math.RADIANS_PER_DEGREE] A numeric Property specifying the distance between each latitude and longitude.
      * @param {Property} [options.shadows=ShadowMode.DISABLED] An enum Property specifying whether the corridor casts or receives shadows from each light source.
      * @param {Property} [options.distanceDisplayCondition] A Property specifying at what distance from the camera that this corridor will be displayed.
+     * @param {Property} [options.classificationType=ClassificationType.BOTH] An enum Property specifying whether this corridor will classify terrain, 3D Tiles, or both when on the ground.
      * @param {ConstantProperty} [options.zIndex] A Property specifying the zIndex of the corridor, used for ordering.  Only has an effect if height and extrudedHeight are undefined, and if the corridor is static.
      *
      * @see Entity
@@ -232,7 +233,7 @@ define([
          * Gets or sets the {@link ClassificationType} Property specifying whether this corridor will classify terrain, 3D Tiles, or both when on the ground.
          * @memberof CorridorGraphics.prototype
          * @type {Property}
-         * @default ClassificationType.TERRAIN
+         * @default ClassificationType.BOTH
          */
         classificationType : createPropertyDescriptor('classificationType'),
 

Source/DataSources/EllipseGraphics.js

@@ -44,6 +44,7 @@ define([
      * @param {Property} [options.granularity=Cesium.Math.RADIANS_PER_DEGREE] A numeric Property specifying the angular distance between points on the ellipse.
      * @param {Property} [options.shadows=ShadowMode.DISABLED] An enum Property specifying whether the ellipse casts or receives shadows from each light source.
      * @param {Property} [options.distanceDisplayCondition] A Property specifying at what distance from the camera that this ellipse will be displayed.
+     * @param {Property} [options.classificationType=ClassificationType.BOTH] An enum Property specifying whether this ellipse will classify terrain, 3D Tiles, or both when on the ground.
      * @param {ConstantProperty} [options.zIndex=0] A property specifying the zIndex of the Ellipse.  Used for ordering ground geometry.  Only has an effect if the ellipse is constant and neither height or exturdedHeight are specified.
      *
      * @demo {@link https://cesiumjs.org/Cesium/Apps/Sandcastle/index.html?src=Circles and Ellipses.html|Cesium Sandcastle Circles and Ellipses Demo}
@@ -254,7 +255,7 @@ define([
          * Gets or sets the {@link ClassificationType} Property specifying whether this ellipse will classify terrain, 3D Tiles, or both when on the ground.
          * @memberof EllipseGraphics.prototype
          * @type {Property}
-         * @default ClassificationType.TERRAIN
+         * @default ClassificationType.BOTH
          */
         classificationType : createPropertyDescriptor('classificationType'),
 

Source/DataSources/Entity.js

@@ -664,7 +664,7 @@ define([
     };
 
     /**
-     * Checks if the given Scene supports materials besides Color on Entities draped on terrain.
+     * Checks if the given Scene supports materials besides Color on Entities draped on terrain or 3D Tiles.
      * If this feature is not supported, Entities with non-color materials but no `height` will
      * instead be rendered as if height is 0.
      *
@@ -676,12 +676,12 @@ define([
     };
 
     /**
-     * Checks if the given Scene supports polylines clamped to the ground..
+     * Checks if the given Scene supports polylines clamped to terrain or 3D Tiles.
      * If this feature is not supported, Entities with PolylineGraphics will be rendered with vertices at
      * the provided heights and using the `followSurface` parameter instead of clamped to the ground.
      *
      * @param {Scene} scene The current scene.
-     * @returns {Boolean} Whether or not the current scene supports Polylines on Terrain.
+     * @returns {Boolean} Whether or not the current scene supports polylines on terrain or 3D TIles.
      */
     Entity.supportsPolylinesOnTerrain = function(scene) {
         return GroundPolylinePrimitive.isSupported(scene);

Source/DataSources/GeometryUpdater.js

@@ -43,7 +43,7 @@ define([
     var defaultOutlineColor = new ConstantProperty(Color.BLACK);
     var defaultShadows = new ConstantProperty(ShadowMode.DISABLED);
     var defaultDistanceDisplayCondition = new ConstantProperty(new DistanceDisplayCondition());
-    var defaultClassificationType = new ConstantProperty(ClassificationType.TERRAIN);
+    var defaultClassificationType = new ConstantProperty(ClassificationType.BOTH);
 
     /**
      * An abstract class for updating geometry entites.

Source/DataSources/GeometryVisualizer.js

@@ -173,27 +173,22 @@ define([
         var groundColorBatches = new Array(numberOfClassificationTypes);
         var groundMaterialBatches = [];
         if (supportsMaterialsforEntitiesOnTerrain) {
-            // Culling, phong shading only supported for ClassificationType.TERRAIN at the moment because
-            // tileset depth information not yet available.
-            groundColorBatches[ClassificationType.TERRAIN] = new StaticGroundGeometryPerMaterialBatch(groundPrimitives, PerInstanceColorAppearance);
             for (i = 0; i < numberOfClassificationTypes; ++i) {
-                if (i !== ClassificationType.TERRAIN) {
-                    groundColorBatches[i] = new StaticGroundGeometryColorBatch(groundPrimitives, i);
-                }
+                groundMaterialBatches.push(new StaticGroundGeometryPerMaterialBatch(groundPrimitives, i, MaterialAppearance));
+                groundColorBatches[i] = new StaticGroundGeometryPerMaterialBatch(groundPrimitives, i, PerInstanceColorAppearance);
             }
-            groundMaterialBatches[0] = new StaticGroundGeometryPerMaterialBatch(groundPrimitives, MaterialAppearance);
-            this._groundTerrainMaterialBatch = groundMaterialBatches[0];
         } else {
             for (i = 0; i < numberOfClassificationTypes; ++i) {
                 groundColorBatches[i] = new StaticGroundGeometryColorBatch(groundPrimitives, i);
             }
         }
 
         this._groundColorBatches = groundColorBatches;
+        this._groundMaterialBatches = groundMaterialBatches;
 
         this._dynamicBatch = new DynamicGeometryBatch(primitives, groundPrimitives);
 
-        this._batches = this._outlineBatches.concat(this._closedColorBatches, this._closedMaterialBatches, this._openColorBatches, this._openMaterialBatches, this._groundColorBatches, groundMaterialBatches, this._dynamicBatch);
+        this._batches = this._outlineBatches.concat(this._closedColorBatches, this._closedMaterialBatches, this._openColorBatches, this._openMaterialBatches, this._groundColorBatches, this._groundMaterialBatches, this._dynamicBatch);
 
         this._subscriptions = new AssociativeArray();
         this._updaterSets = new AssociativeArray();
@@ -414,10 +409,7 @@ define([
                     this._groundColorBatches[classificationType].add(time, updater);
                 } else {
                     // If unsupported, updater will not be on terrain.
-                    // If the updater has a material, ignore input ClassificationType for now and only classify terrain.
-                    // Culling, phong shading only supported for ClassificationType.TERRAIN at the moment because
-                    // tileset depth information not yet available.
-                    this._groundTerrainMaterialBatch.add(time, updater);
+                    this._groundMaterialBatches[classificationType].add(time, updater);
                 }
             } else if (updater.isClosed) {
                 if (updater.fillMaterialProperty instanceof ColorMaterialProperty) {

Source/DataSources/GroundGeometryUpdater.js

@@ -1,39 +1,39 @@
 define([
-    '../Core/ApproximateTerrainHeights',
-    '../Core/Cartesian3',
-    '../Core/Check',
-    '../Core/defaultValue',
-    '../Core/defined',
-    '../Core/defineProperties',
-    '../Core/DeveloperError',
-    '../Core/GeometryOffsetAttribute',
-    '../Core/Iso8601',
-    '../Core/oneTimeWarning',
-    '../Scene/GroundPrimitive',
-    '../Scene/HeightReference',
-    './CallbackProperty',
-    './ConstantProperty',
-    './GeometryUpdater',
-    './Property',
-    './TerrainOffsetProperty'
-], function(
-    ApproximateTerrainHeights,
-    Cartesian3,
-    Check,
-    defaultValue,
-    defined,
-    defineProperties,
-    DeveloperError,
-    GeometryOffsetAttribute,
-    Iso8601,
-    oneTimeWarning,
-    GroundPrimitive,
-    HeightReference,
-    CallbackProperty,
-    ConstantProperty,
-    GeometryUpdater,
-    Property,
-    TerrainOffsetProperty) {
+        '../Core/ApproximateTerrainHeights',
+        '../Core/Cartesian3',
+        '../Core/Check',
+        '../Core/defaultValue',
+        '../Core/defined',
+        '../Core/defineProperties',
+        '../Core/DeveloperError',
+        '../Core/GeometryOffsetAttribute',
+        '../Core/Iso8601',
+        '../Core/oneTimeWarning',
+        '../Scene/GroundPrimitive',
+        '../Scene/HeightReference',
+        './CallbackProperty',
+        './ConstantProperty',
+        './GeometryUpdater',
+        './Property',
+        './TerrainOffsetProperty'
+    ], function(
+        ApproximateTerrainHeights,
+        Cartesian3,
+        Check,
+        defaultValue,
+        defined,
+        defineProperties,
+        DeveloperError,
+        GeometryOffsetAttribute,
+        Iso8601,
+        oneTimeWarning,
+        GroundPrimitive,
+        HeightReference,
+        CallbackProperty,
+        ConstantProperty,
+        GeometryUpdater,
+        Property,
+        TerrainOffsetProperty) {
     'use strict';
 
     var defaultZIndex = new ConstantProperty(0);

Source/DataSources/PolygonGraphics.js

@@ -43,6 +43,7 @@ define([
      * @param {Boolean} [options.closeBottom=true] When false, leaves off the bottom of an extruded polygon open.
      * @param {Property} [options.shadows=ShadowMode.DISABLED] An enum Property specifying whether the polygon casts or receives shadows from each light source.
      * @param {Property} [options.distanceDisplayCondition] A Property specifying at what distance from the camera that this polygon will be displayed.
+     * @param {Property} [options.classificationType=ClassificationType.BOTH] An enum Property specifying whether this polygon will classify terrain, 3D Tiles, or both when on the ground.
      * @param {ConstantProperty} [options.zIndex=0] A property specifying the zIndex used for ordering ground geometry.  Only has an effect if the polygon is constant and neither height or extrudedHeight are specified.
      *
      * @see Entity
@@ -255,7 +256,7 @@ define([
          * Gets or sets the {@link ClassificationType} Property specifying whether this polygon will classify terrain, 3D Tiles, or both when on the ground.
          * @memberof PolygonGraphics.prototype
          * @type {Property}
-         * @default ClassificationType.TERRAIN
+         * @default ClassificationType.BOTH
          */
         classificationType : createPropertyDescriptor('classificationType'),