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287x 118x 118x 118x 118x 118x 118x 1x 1640x 1x 706x 706x 706x 706x 706x 621x 706x 706x 706x 706x 653x 706x 706x 706x 706x 706x 706x 642x 642x 642x 626x 626x | import BoundingSphere from "../Core/BoundingSphere.js";
import Cartesian2 from "../Core/Cartesian2.js";
import Cartesian3 from "../Core/Cartesian3.js";
import Cartesian4 from "../Core/Cartesian4.js";
import Cartographic from "../Core/Cartographic.js";
import clone from "../Core/clone.js";
import Color from "../Core/Color.js";
import combine from "../Core/combine.js";
import ComponentDatatype from "../Core/ComponentDatatype.js";
import Frozen from "../Core/Frozen.js";
import defined from "../Core/defined.js";
import destroyObject from "../Core/destroyObject.js";
import DeveloperError from "../Core/DeveloperError.js";
import EncodedCartesian3 from "../Core/EncodedCartesian3.js";
import FeatureDetection from "../Core/FeatureDetection.js";
import Geometry from "../Core/Geometry.js";
import GeometryAttribute from "../Core/GeometryAttribute.js";
import GeometryAttributes from "../Core/GeometryAttributes.js";
import GeometryOffsetAttribute from "../Core/GeometryOffsetAttribute.js";
import Intersect from "../Core/Intersect.js";
import Matrix4 from "../Core/Matrix4.js";
import Plane from "../Core/Plane.js";
import RuntimeError from "../Core/RuntimeError.js";
import subdivideArray from "../Core/subdivideArray.js";
import TaskProcessor from "../Core/TaskProcessor.js";
import BufferUsage from "../Renderer/BufferUsage.js";
import ContextLimits from "../Renderer/ContextLimits.js";
import DrawCommand from "../Renderer/DrawCommand.js";
import Pass from "../Renderer/Pass.js";
import RenderState from "../Renderer/RenderState.js";
import ShaderProgram from "../Renderer/ShaderProgram.js";
import ShaderSource from "../Renderer/ShaderSource.js";
import VertexArray from "../Renderer/VertexArray.js";
import BatchTable from "./BatchTable.js";
import CullFace from "./CullFace.js";
import DepthFunction from "./DepthFunction.js";
import PrimitivePipeline from "./PrimitivePipeline.js";
import PrimitiveState from "./PrimitiveState.js";
import SceneMode from "./SceneMode.js";
import ShadowMode from "./ShadowMode.js";
/**
* A primitive represents geometry in the {@link Scene}. The geometry can be from a single {@link GeometryInstance}
* as shown in example 1 below, or from an array of instances, even if the geometry is from different
* geometry types, e.g., an {@link RectangleGeometry} and an {@link EllipsoidGeometry} as shown in Code Example 2.
* <p>
* A primitive combines geometry instances with an {@link Appearance} that describes the full shading, including
* {@link Material} and {@link RenderState}. Roughly, the geometry instance defines the structure and placement,
* and the appearance defines the visual characteristics. Decoupling geometry and appearance allows us to mix
* and match most of them and add a new geometry or appearance independently of each other.
* </p>
* <p>
* Combining multiple instances into one primitive is called batching, and significantly improves performance for static data.
* Instances can be individually picked; {@link Scene#pick} returns their {@link GeometryInstance#id}. Using
* per-instance appearances like {@link PerInstanceColorAppearance}, each instance can also have a unique color.
* </p>
* <p>
* {@link Geometry} can either be created and batched on a web worker or the main thread. The first two examples
* show geometry that will be created on a web worker by using the descriptions of the geometry. The third example
* shows how to create the geometry on the main thread by explicitly calling the <code>createGeometry</code> method.
* </p>
*
* @alias Primitive
* @constructor
*
* @param {object} [options] Object with the following properties:
* @param {GeometryInstance[]|GeometryInstance} [options.geometryInstances] The geometry instances - or a single geometry instance - to render.
* @param {Appearance} [options.appearance] The appearance used to render the primitive.
* @param {Appearance} [options.depthFailAppearance] The appearance used to shade this primitive when it fails the depth test.
* @param {boolean} [options.show=true] Determines if this primitive will be shown.
* @param {Matrix4} [options.modelMatrix=Matrix4.IDENTITY] The 4x4 transformation matrix that transforms the primitive (all geometry instances) from model to world coordinates.
* @param {boolean} [options.vertexCacheOptimize=false] When <code>true</code>, geometry vertices are optimized for the pre and post-vertex-shader caches.
* @param {boolean} [options.interleave=false] When <code>true</code>, geometry vertex attributes are interleaved, which can slightly improve rendering performance but increases load time.
* @param {boolean} [options.compressVertices=true] When <code>true</code>, the geometry vertices are compressed, which will save memory.
* @param {boolean} [options.releaseGeometryInstances=true] When <code>true</code>, the primitive does not keep a reference to the input <code>geometryInstances</code> to save memory.
* @param {boolean} [options.allowPicking=true] When <code>true</code>, each geometry instance will only be pickable with {@link Scene#pick}. When <code>false</code>, GPU memory is saved.
* @param {boolean} [options.cull=true] When <code>true</code>, the renderer frustum culls and horizon culls the primitive's commands based on their bounding volume. Set this to <code>false</code> for a small performance gain if you are manually culling the primitive.
* @param {boolean} [options.asynchronous=true] Determines if the primitive will be created asynchronously or block until ready.
* @param {boolean} [options.debugShowBoundingVolume=false] For debugging only. Determines if this primitive's commands' bounding spheres are shown.
* @param {ShadowMode} [options.shadows=ShadowMode.DISABLED] Determines whether this primitive casts or receives shadows from light sources.
*
* @example
* // 1. Draw a translucent ellipse on the surface with a checkerboard pattern
* const instance = new Cesium.GeometryInstance({
* geometry : new Cesium.EllipseGeometry({
* center : Cesium.Cartesian3.fromDegrees(-100.0, 20.0),
* semiMinorAxis : 500000.0,
* semiMajorAxis : 1000000.0,
* rotation : Cesium.Math.PI_OVER_FOUR,
* vertexFormat : Cesium.VertexFormat.POSITION_AND_ST
* }),
* id : 'object returned when this instance is picked and to get/set per-instance attributes'
* });
* scene.primitives.add(new Cesium.Primitive({
* geometryInstances : instance,
* appearance : new Cesium.EllipsoidSurfaceAppearance({
* material : Cesium.Material.fromType('Checkerboard')
* })
* }));
*
* @example
* // 2. Draw different instances each with a unique color
* const rectangleInstance = new Cesium.GeometryInstance({
* geometry : new Cesium.RectangleGeometry({
* rectangle : Cesium.Rectangle.fromDegrees(-140.0, 30.0, -100.0, 40.0),
* vertexFormat : Cesium.PerInstanceColorAppearance.VERTEX_FORMAT
* }),
* id : 'rectangle',
* attributes : {
* color : new Cesium.ColorGeometryInstanceAttribute(0.0, 1.0, 1.0, 0.5)
* }
* });
* const ellipsoidInstance = new Cesium.GeometryInstance({
* geometry : new Cesium.EllipsoidGeometry({
* radii : new Cesium.Cartesian3(500000.0, 500000.0, 1000000.0),
* vertexFormat : Cesium.VertexFormat.POSITION_AND_NORMAL
* }),
* modelMatrix : Cesium.Matrix4.multiplyByTranslation(Cesium.Transforms.eastNorthUpToFixedFrame(
* Cesium.Cartesian3.fromDegrees(-95.59777, 40.03883)), new Cesium.Cartesian3(0.0, 0.0, 500000.0), new Cesium.Matrix4()),
* id : 'ellipsoid',
* attributes : {
* color : Cesium.ColorGeometryInstanceAttribute.fromColor(Cesium.Color.AQUA)
* }
* });
* scene.primitives.add(new Cesium.Primitive({
* geometryInstances : [rectangleInstance, ellipsoidInstance],
* appearance : new Cesium.PerInstanceColorAppearance()
* }));
*
* @example
* // 3. Create the geometry on the main thread.
* scene.primitives.add(new Cesium.Primitive({
* geometryInstances : new Cesium.GeometryInstance({
* geometry : Cesium.EllipsoidGeometry.createGeometry(new Cesium.EllipsoidGeometry({
* radii : new Cesium.Cartesian3(500000.0, 500000.0, 1000000.0),
* vertexFormat : Cesium.VertexFormat.POSITION_AND_NORMAL
* })),
* modelMatrix : Cesium.Matrix4.multiplyByTranslation(Cesium.Transforms.eastNorthUpToFixedFrame(
* Cesium.Cartesian3.fromDegrees(-95.59777, 40.03883)), new Cesium.Cartesian3(0.0, 0.0, 500000.0), new Cesium.Matrix4()),
* id : 'ellipsoid',
* attributes : {
* color : Cesium.ColorGeometryInstanceAttribute.fromColor(Cesium.Color.AQUA)
* }
* }),
* appearance : new Cesium.PerInstanceColorAppearance(),
* asynchronous : false
* }));
*
* @see GeometryInstance
* @see Appearance
* @see ClassificationPrimitive
* @see GroundPrimitive
*/
function Primitive(options) {
options = options ?? Frozen.EMPTY_OBJECT;
/**
* The geometry instances rendered with this primitive. This may
* be <code>undefined</code> if <code>options.releaseGeometryInstances</code>
* is <code>true</code> when the primitive is constructed.
* <p>
* Changing this property after the primitive is rendered has no effect.
* </p>
*
* @readonly
* @type GeometryInstance[]|GeometryInstance
*
* @default undefined
*/
this.geometryInstances = options.geometryInstances;
/**
* The {@link Appearance} used to shade this primitive. Each geometry
* instance is shaded with the same appearance. Some appearances, like
* {@link PerInstanceColorAppearance} allow giving each instance unique
* properties.
*
* @type Appearance
*
* @default undefined
*/
this.appearance = options.appearance;
this._appearance = undefined;
this._material = undefined;
/**
* The {@link Appearance} used to shade this primitive when it fails the depth test. Each geometry
* instance is shaded with the same appearance. Some appearances, like
* {@link PerInstanceColorAppearance} allow giving each instance unique
* properties.
*
* <p>
* When using an appearance that requires a color attribute, like PerInstanceColorAppearance,
* add a depthFailColor per-instance attribute instead.
* </p>
*
* <p>
* Requires the EXT_frag_depth WebGL extension to render properly. If the extension is not supported,
* there may be artifacts.
* </p>
* @type Appearance
*
* @default undefined
*/
this.depthFailAppearance = options.depthFailAppearance;
this._depthFailAppearance = undefined;
this._depthFailMaterial = undefined;
/**
* The 4x4 transformation matrix that transforms the primitive (all geometry instances) from model to world coordinates.
* When this is the identity matrix, the primitive is drawn in world coordinates, i.e., Earth's WGS84 coordinates.
* Local reference frames can be used by providing a different transformation matrix, like that returned
* by {@link Transforms.eastNorthUpToFixedFrame}.
*
* <p>
* This property is only supported in 3D mode.
* </p>
*
* @type Matrix4
*
* @default Matrix4.IDENTITY
*
* @example
* const origin = Cesium.Cartesian3.fromDegrees(-95.0, 40.0, 200000.0);
* p.modelMatrix = Cesium.Transforms.eastNorthUpToFixedFrame(origin);
*/
this.modelMatrix = Matrix4.clone(options.modelMatrix ?? Matrix4.IDENTITY);
this._modelMatrix = new Matrix4();
/**
* Determines if the primitive will be shown. This affects all geometry
* instances in the primitive.
*
* @type {boolean}
*
* @default true
*/
this.show = options.show ?? true;
this._vertexCacheOptimize = options.vertexCacheOptimize ?? false;
this._interleave = options.interleave ?? false;
this._releaseGeometryInstances = options.releaseGeometryInstances ?? true;
this._allowPicking = options.allowPicking ?? true;
this._asynchronous = options.asynchronous ?? true;
this._compressVertices = options.compressVertices ?? true;
/**
* When <code>true</code>, the renderer frustum culls and horizon culls the primitive's commands
* based on their bounding volume. Set this to <code>false</code> for a small performance gain
* if you are manually culling the primitive.
*
* @type {boolean}
*
* @default true
*/
this.cull = options.cull ?? true;
/**
* This property is for debugging only; it is not for production use nor is it optimized.
* <p>
* Draws the bounding sphere for each draw command in the primitive.
* </p>
*
* @type {boolean}
*
* @default false
*/
this.debugShowBoundingVolume = options.debugShowBoundingVolume ?? false;
/**
* @private
*/
this.rtcCenter = options.rtcCenter;
//>>includeStart('debug', pragmas.debug);
if (
defined(this.rtcCenter) &&
(!defined(this.geometryInstances) ||
(Array.isArray(this.geometryInstances) &&
this.geometryInstances.length !== 1))
) {
throw new DeveloperError(
"Relative-to-center rendering only supports one geometry instance.",
);
}
//>>includeEnd('debug');
/**
* Determines whether this primitive casts or receives shadows from light sources.
*
* @type {ShadowMode}
*
* @default ShadowMode.DISABLED
*/
this.shadows = options.shadows ?? ShadowMode.DISABLED;
this._translucent = undefined;
this._state = PrimitiveState.READY;
this._geometries = [];
this._error = undefined;
this._numberOfInstances = 0;
this._boundingSpheres = [];
this._boundingSphereWC = [];
this._boundingSphereCV = [];
this._boundingSphere2D = [];
this._boundingSphereMorph = [];
this._perInstanceAttributeCache = new Map();
this._instanceIds = [];
this._lastPerInstanceAttributeIndex = 0;
this._va = [];
this._attributeLocations = undefined;
this._primitiveType = undefined;
this._frontFaceRS = undefined;
this._backFaceRS = undefined;
this._sp = undefined;
this._depthFailAppearance = undefined;
this._spDepthFail = undefined;
this._frontFaceDepthFailRS = undefined;
this._backFaceDepthFailRS = undefined;
this._pickIds = [];
this._colorCommands = [];
this._pickCommands = [];
this._createBoundingVolumeFunction = options._createBoundingVolumeFunction;
this._createRenderStatesFunction = options._createRenderStatesFunction;
this._createShaderProgramFunction = options._createShaderProgramFunction;
this._createCommandsFunction = options._createCommandsFunction;
this._updateAndQueueCommandsFunction =
options._updateAndQueueCommandsFunction;
this._createPickOffsets = options._createPickOffsets;
this._pickOffsets = undefined;
this._createGeometryResults = undefined;
this._ready = false;
this._batchTable = undefined;
this._batchTableAttributeIndices = undefined;
this._offsetInstanceExtend = undefined;
this._batchTableOffsetAttribute2DIndex = undefined;
this._batchTableOffsetsUpdated = false;
this._instanceBoundingSpheres = undefined;
this._instanceBoundingSpheresCV = undefined;
this._tempBoundingSpheres = undefined;
this._recomputeBoundingSpheres = false;
this._batchTableBoundingSpheresUpdated = false;
this._batchTableBoundingSphereAttributeIndices = undefined;
}
Object.defineProperties(Primitive.prototype, {
/**
* When <code>true</code>, geometry vertices are optimized for the pre and post-vertex-shader caches.
*
* @memberof Primitive.prototype
*
* @type {boolean}
* @readonly
*
* @default true
*/
vertexCacheOptimize: {
get: function () {
return this._vertexCacheOptimize;
},
},
/**
* Determines if geometry vertex attributes are interleaved, which can slightly improve rendering performance.
*
* @memberof Primitive.prototype
*
* @type {boolean}
* @readonly
*
* @default false
*/
interleave: {
get: function () {
return this._interleave;
},
},
/**
* When <code>true</code>, the primitive does not keep a reference to the input <code>geometryInstances</code> to save memory.
*
* @memberof Primitive.prototype
*
* @type {boolean}
* @readonly
*
* @default true
*/
releaseGeometryInstances: {
get: function () {
return this._releaseGeometryInstances;
},
},
/**
* When <code>true</code>, each geometry instance will only be pickable with {@link Scene#pick}. When <code>false</code>, GPU memory is saved. *
*
* @memberof Primitive.prototype
*
* @type {boolean}
* @readonly
*
* @default true
*/
allowPicking: {
get: function () {
return this._allowPicking;
},
},
/**
* Determines if the geometry instances will be created and batched on a web worker.
*
* @memberof Primitive.prototype
*
* @type {boolean}
* @readonly
*
* @default true
*/
asynchronous: {
get: function () {
return this._asynchronous;
},
},
/**
* When <code>true</code>, geometry vertices are compressed, which will save memory.
*
* @memberof Primitive.prototype
*
* @type {boolean}
* @readonly
*
* @default true
*/
compressVertices: {
get: function () {
return this._compressVertices;
},
},
/**
* Determines if the primitive is complete and ready to render. If this property is
* true, the primitive will be rendered the next time that {@link Primitive#update}
* is called.
*
* @memberof Primitive.prototype
*
* @type {boolean}
* @readonly
*
* @example
* // Wait for a primitive to become ready before accessing attributes
* const removeListener = scene.postRender.addEventListener(() => {
* if (!frustumPrimitive.ready) {
* return;
* }
*
* const attributes = primitive.getGeometryInstanceAttributes('an id');
* attributes.color = Cesium.ColorGeometryInstanceAttribute.toValue(Cesium.Color.AQUA);
*
* removeListener();
* });
*/
ready: {
get: function () {
return this._ready;
},
},
});
function getCommonPerInstanceAttributeNames(instances) {
const length = instances.length;
const attributesInAllInstances = [];
const attributes0 = instances[0].attributes;
let name;
for (name in attributes0) {
if (attributes0.hasOwnProperty(name) && defined(attributes0[name])) {
const attribute = attributes0[name];
let inAllInstances = true;
// Does this same attribute exist in all instances?
for (let i = 1; i < length; ++i) {
const otherAttribute = instances[i].attributes[name];
if (
!defined(otherAttribute) ||
attribute.componentDatatype !== otherAttribute.componentDatatype ||
attribute.componentsPerAttribute !==
otherAttribute.componentsPerAttribute ||
attribute.normalize !== otherAttribute.normalize
) {
inAllInstances = false;
break;
}
}
if (inAllInstances) {
attributesInAllInstances.push(name);
}
}
}
return attributesInAllInstances;
}
const scratchGetAttributeCartesian2 = new Cartesian2();
const scratchGetAttributeCartesian3 = new Cartesian3();
const scratchGetAttributeCartesian4 = new Cartesian4();
function getAttributeValue(value) {
const componentsPerAttribute = value.length;
if (componentsPerAttribute === 1) {
return value[0];
} else if (componentsPerAttribute === 2) {
return Cartesian2.unpack(value, 0, scratchGetAttributeCartesian2);
} else if (componentsPerAttribute === 3) {
return Cartesian3.unpack(value, 0, scratchGetAttributeCartesian3);
} else Eif (componentsPerAttribute === 4) {
return Cartesian4.unpack(value, 0, scratchGetAttributeCartesian4);
}
}
function createBatchTable(primitive, context) {
const geometryInstances = primitive.geometryInstances;
const instances = Array.isArray(geometryInstances)
? geometryInstances
: [geometryInstances];
const numberOfInstances = instances.length;
Iif (numberOfInstances === 0) {
return;
}
const names = getCommonPerInstanceAttributeNames(instances);
const length = names.length;
const attributes = [];
const attributeIndices = {};
const boundingSphereAttributeIndices = {};
let offset2DIndex;
const firstInstance = instances[0];
let instanceAttributes = firstInstance.attributes;
let i;
let name;
let attribute;
for (i = 0; i < length; ++i) {
name = names[i];
attribute = instanceAttributes[name];
attributeIndices[name] = i;
attributes.push({
functionName: `czm_batchTable_${name}`,
componentDatatype: attribute.componentDatatype,
componentsPerAttribute: attribute.componentsPerAttribute,
normalize: attribute.normalize,
});
}
if (names.indexOf("distanceDisplayCondition") !== -1) {
attributes.push(
{
functionName: "czm_batchTable_boundingSphereCenter3DHigh",
componentDatatype: ComponentDatatype.FLOAT,
componentsPerAttribute: 3,
},
{
functionName: "czm_batchTable_boundingSphereCenter3DLow",
componentDatatype: ComponentDatatype.FLOAT,
componentsPerAttribute: 3,
},
{
functionName: "czm_batchTable_boundingSphereCenter2DHigh",
componentDatatype: ComponentDatatype.FLOAT,
componentsPerAttribute: 3,
},
{
functionName: "czm_batchTable_boundingSphereCenter2DLow",
componentDatatype: ComponentDatatype.FLOAT,
componentsPerAttribute: 3,
},
{
functionName: "czm_batchTable_boundingSphereRadius",
componentDatatype: ComponentDatatype.FLOAT,
componentsPerAttribute: 1,
},
);
boundingSphereAttributeIndices.center3DHigh = attributes.length - 5;
boundingSphereAttributeIndices.center3DLow = attributes.length - 4;
boundingSphereAttributeIndices.center2DHigh = attributes.length - 3;
boundingSphereAttributeIndices.center2DLow = attributes.length - 2;
boundingSphereAttributeIndices.radius = attributes.length - 1;
}
if (names.indexOf("offset") !== -1) {
attributes.push({
functionName: "czm_batchTable_offset2D",
componentDatatype: ComponentDatatype.FLOAT,
componentsPerAttribute: 3,
});
offset2DIndex = attributes.length - 1;
}
attributes.push({
functionName: "czm_batchTable_pickColor",
componentDatatype: ComponentDatatype.UNSIGNED_BYTE,
componentsPerAttribute: 4,
normalize: true,
});
const attributesLength = attributes.length;
const batchTable = new BatchTable(context, attributes, numberOfInstances);
for (i = 0; i < numberOfInstances; ++i) {
const instance = instances[i];
instanceAttributes = instance.attributes;
for (let j = 0; j < length; ++j) {
name = names[j];
attribute = instanceAttributes[name];
const value = getAttributeValue(attribute.value);
const attributeIndex = attributeIndices[name];
batchTable.setBatchedAttribute(i, attributeIndex, value);
}
const pickObject = {
primitive: instance.pickPrimitive ?? primitive,
};
if (defined(instance.id)) {
pickObject.id = instance.id;
}
const pickId = context.createPickId(pickObject);
primitive._pickIds.push(pickId);
const pickColor = pickId.color;
const color = scratchGetAttributeCartesian4;
color.x = Color.floatToByte(pickColor.red);
color.y = Color.floatToByte(pickColor.green);
color.z = Color.floatToByte(pickColor.blue);
color.w = Color.floatToByte(pickColor.alpha);
batchTable.setBatchedAttribute(i, attributesLength - 1, color);
}
primitive._batchTable = batchTable;
primitive._batchTableAttributeIndices = attributeIndices;
primitive._batchTableBoundingSphereAttributeIndices =
boundingSphereAttributeIndices;
primitive._batchTableOffsetAttribute2DIndex = offset2DIndex;
}
function cloneAttribute(attribute) {
let clonedValues;
if (Array.isArray(attribute.values)) {
clonedValues = attribute.values.slice(0);
} else {
clonedValues = new attribute.values.constructor(attribute.values);
}
return new GeometryAttribute({
componentDatatype: attribute.componentDatatype,
componentsPerAttribute: attribute.componentsPerAttribute,
normalize: attribute.normalize,
values: clonedValues,
});
}
function cloneGeometry(geometry) {
const attributes = geometry.attributes;
const newAttributes = new GeometryAttributes();
for (const property in attributes) {
if (attributes.hasOwnProperty(property) && defined(attributes[property])) {
newAttributes[property] = cloneAttribute(attributes[property]);
}
}
let indices;
if (defined(geometry.indices)) {
const sourceValues = geometry.indices;
if (Array.isArray(sourceValues)) {
indices = sourceValues.slice(0);
} else {
indices = new sourceValues.constructor(sourceValues);
}
}
return new Geometry({
attributes: newAttributes,
indices: indices,
primitiveType: geometry.primitiveType,
boundingSphere: BoundingSphere.clone(geometry.boundingSphere),
});
}
function cloneInstance(instance, geometry) {
return {
geometry: geometry,
attributes: instance.attributes,
modelMatrix: Matrix4.clone(instance.modelMatrix),
pickPrimitive: instance.pickPrimitive,
id: instance.id,
};
}
const positionRegex = /in\s+vec(?:3|4)\s+(.*)3DHigh;/g;
Primitive._modifyShaderPosition = function (
primitive,
vertexShaderSource,
scene3DOnly,
) {
let match;
let forwardDecl = "";
let attributes = "";
let computeFunctions = "";
while ((match = positionRegex.exec(vertexShaderSource)) !== null) {
const name = match[1];
const functionName = `vec4 czm_compute${name[0].toUpperCase()}${name.substr(
1,
)}()`;
// Don't forward-declare czm_computePosition because computePosition.glsl already does.
if (functionName !== "vec4 czm_computePosition()") {
forwardDecl += `${functionName};\n`;
}
if (!defined(primitive.rtcCenter)) {
// Use GPU RTE
if (!scene3DOnly) {
attributes += `in vec3 ${name}2DHigh;\nin vec3 ${name}2DLow;\n`;
computeFunctions +=
`${functionName}\n` +
`{\n` +
` vec4 p;\n` +
` if (czm_morphTime == 1.0)\n` +
` {\n` +
` p = czm_translateRelativeToEye(${name}3DHigh, ${name}3DLow);\n` +
` }\n` +
` else if (czm_morphTime == 0.0)\n` +
` {\n` +
` p = czm_translateRelativeToEye(${name}2DHigh.zxy, ${name}2DLow.zxy);\n` +
` }\n` +
` else\n` +
` {\n` +
` p = czm_columbusViewMorph(\n` +
` czm_translateRelativeToEye(${name}2DHigh.zxy, ${name}2DLow.zxy),\n` +
` czm_translateRelativeToEye(${name}3DHigh, ${name}3DLow),\n` +
` czm_morphTime);\n` +
` }\n` +
` return p;\n` +
`}\n\n`;
} else {
computeFunctions +=
`${functionName}\n` +
`{\n` +
` return czm_translateRelativeToEye(${name}3DHigh, ${name}3DLow);\n` +
`}\n\n`;
}
} else {
// Use RTC
vertexShaderSource = vertexShaderSource.replace(
/in\s+vec(?:3|4)\s+position3DHigh;/g,
"",
);
vertexShaderSource = vertexShaderSource.replace(
/in\s+vec(?:3|4)\s+position3DLow;/g,
"",
);
forwardDecl += "uniform mat4 u_modifiedModelView;\n";
attributes += "in vec4 position;\n";
computeFunctions +=
`${functionName}\n` +
`{\n` +
` return u_modifiedModelView * position;\n` +
`}\n\n`;
vertexShaderSource = vertexShaderSource.replace(
/czm_modelViewRelativeToEye\s+\*\s+/g,
"",
);
vertexShaderSource = vertexShaderSource.replace(
/czm_modelViewProjectionRelativeToEye/g,
"czm_projection",
);
}
}
return [forwardDecl, attributes, vertexShaderSource, computeFunctions].join(
"\n",
);
};
Primitive._appendShowToShader = function (primitive, vertexShaderSource) {
if (!defined(primitive._batchTableAttributeIndices.show)) {
return vertexShaderSource;
}
const renamedVS = ShaderSource.replaceMain(
vertexShaderSource,
"czm_non_show_main",
);
const showMain =
"void main() \n" +
"{ \n" +
" czm_non_show_main(); \n" +
" gl_Position *= czm_batchTable_show(batchId); \n" +
"}";
return `${renamedVS}\n${showMain}`;
};
Primitive._updateColorAttribute = function (
primitive,
vertexShaderSource,
isDepthFail,
) {
// some appearances have a color attribute for per vertex color.
// only remove if color is a per instance attribute.
if (
!defined(primitive._batchTableAttributeIndices.color) &&
!defined(primitive._batchTableAttributeIndices.depthFailColor)
) {
return vertexShaderSource;
}
if (vertexShaderSource.search(/in\s+vec4\s+color;/g) === -1) {
return vertexShaderSource;
}
//>>includeStart('debug', pragmas.debug);
Iif (
isDepthFail &&
!defined(primitive._batchTableAttributeIndices.depthFailColor)
) {
throw new DeveloperError(
"A depthFailColor per-instance attribute is required when using a depth fail appearance that uses a color attribute.",
);
}
//>>includeEnd('debug');
let modifiedVS = vertexShaderSource;
modifiedVS = modifiedVS.replace(/in\s+vec4\s+color;/g, "");
if (!isDepthFail) {
modifiedVS = modifiedVS.replace(
/(\b)color(\b)/g,
"$1czm_batchTable_color(batchId)$2",
);
} else {
modifiedVS = modifiedVS.replace(
/(\b)color(\b)/g,
"$1czm_batchTable_depthFailColor(batchId)$2",
);
}
return modifiedVS;
};
function appendPickToVertexShader(source) {
const renamedVS = ShaderSource.replaceMain(source, "czm_non_pick_main");
const pickMain =
"out vec4 v_pickColor; \n" +
"void main() \n" +
"{ \n" +
" czm_non_pick_main(); \n" +
" v_pickColor = czm_batchTable_pickColor(batchId); \n" +
"}";
return `${renamedVS}\n${pickMain}`;
}
function appendPickToFragmentShader(source) {
return `in vec4 v_pickColor;\n${source}`;
}
Primitive._updatePickColorAttribute = function (source) {
let vsPick = source.replace(/in\s+vec4\s+pickColor;/g, "");
vsPick = vsPick.replace(
/(\b)pickColor(\b)/g,
"$1czm_batchTable_pickColor(batchId)$2",
);
return vsPick;
};
Primitive._appendOffsetToShader = function (primitive, vertexShaderSource) {
if (!defined(primitive._batchTableAttributeIndices.offset)) {
return vertexShaderSource;
}
let attr = "in float batchId;\n";
attr += "in float applyOffset;";
let modifiedShader = vertexShaderSource.replace(
/in\s+float\s+batchId;/g,
attr,
);
let str = "vec4 $1 = czm_computePosition();\n";
str += " if (czm_sceneMode == czm_sceneMode3D)\n";
str += " {\n";
str +=
" $1 = $1 + vec4(czm_batchTable_offset(batchId) * applyOffset, 0.0);";
str += " }\n";
str += " else\n";
str += " {\n";
str +=
" $1 = $1 + vec4(czm_batchTable_offset2D(batchId) * applyOffset, 0.0);";
str += " }\n";
modifiedShader = modifiedShader.replace(
/vec4\s+([A-Za-z0-9_]+)\s+=\s+czm_computePosition\(\);/g,
str,
);
return modifiedShader;
};
Primitive._appendDistanceDisplayConditionToShader = function (
primitive,
vertexShaderSource,
scene3DOnly,
) {
if (
!defined(primitive._batchTableAttributeIndices.distanceDisplayCondition)
) {
return vertexShaderSource;
}
const renamedVS = ShaderSource.replaceMain(
vertexShaderSource,
"czm_non_distanceDisplayCondition_main",
);
let distanceDisplayConditionMain =
"void main() \n" +
"{ \n" +
" czm_non_distanceDisplayCondition_main(); \n" +
" vec2 distanceDisplayCondition = czm_batchTable_distanceDisplayCondition(batchId);\n" +
" vec3 boundingSphereCenter3DHigh = czm_batchTable_boundingSphereCenter3DHigh(batchId);\n" +
" vec3 boundingSphereCenter3DLow = czm_batchTable_boundingSphereCenter3DLow(batchId);\n" +
" float boundingSphereRadius = czm_batchTable_boundingSphereRadius(batchId);\n";
if (!scene3DOnly) {
distanceDisplayConditionMain +=
" vec3 boundingSphereCenter2DHigh = czm_batchTable_boundingSphereCenter2DHigh(batchId);\n" +
" vec3 boundingSphereCenter2DLow = czm_batchTable_boundingSphereCenter2DLow(batchId);\n" +
" vec4 centerRTE;\n" +
" if (czm_morphTime == 1.0)\n" +
" {\n" +
" centerRTE = czm_translateRelativeToEye(boundingSphereCenter3DHigh, boundingSphereCenter3DLow);\n" +
" }\n" +
" else if (czm_morphTime == 0.0)\n" +
" {\n" +
" centerRTE = czm_translateRelativeToEye(boundingSphereCenter2DHigh.zxy, boundingSphereCenter2DLow.zxy);\n" +
" }\n" +
" else\n" +
" {\n" +
" centerRTE = czm_columbusViewMorph(\n" +
" czm_translateRelativeToEye(boundingSphereCenter2DHigh.zxy, boundingSphereCenter2DLow.zxy),\n" +
" czm_translateRelativeToEye(boundingSphereCenter3DHigh, boundingSphereCenter3DLow),\n" +
" czm_morphTime);\n" +
" }\n";
} else {
distanceDisplayConditionMain +=
" vec4 centerRTE = czm_translateRelativeToEye(boundingSphereCenter3DHigh, boundingSphereCenter3DLow);\n";
}
distanceDisplayConditionMain +=
" float radiusSq = boundingSphereRadius * boundingSphereRadius; \n" +
" float distanceSq; \n" +
" if (czm_sceneMode == czm_sceneMode2D) \n" +
" { \n" +
" distanceSq = czm_eyeHeight2D.y - radiusSq; \n" +
" } \n" +
" else \n" +
" { \n" +
" distanceSq = dot(centerRTE.xyz, centerRTE.xyz) - radiusSq; \n" +
" } \n" +
" distanceSq = max(distanceSq, 0.0); \n" +
" float nearSq = distanceDisplayCondition.x * distanceDisplayCondition.x; \n" +
" float farSq = distanceDisplayCondition.y * distanceDisplayCondition.y; \n" +
" float show = (distanceSq >= nearSq && distanceSq <= farSq) ? 1.0 : 0.0; \n" +
" gl_Position *= show; \n" +
"}";
return `${renamedVS}\n${distanceDisplayConditionMain}`;
};
function modifyForEncodedNormals(primitive, vertexShaderSource) {
if (!primitive.compressVertices) {
return vertexShaderSource;
}
const containsNormal =
vertexShaderSource.search(/in\s+vec3\s+normal;/g) !== -1;
const containsSt = vertexShaderSource.search(/in\s+vec2\s+st;/g) !== -1;
if (!containsNormal && !containsSt) {
return vertexShaderSource;
}
const containsTangent =
vertexShaderSource.search(/in\s+vec3\s+tangent;/g) !== -1;
const containsBitangent =
vertexShaderSource.search(/in\s+vec3\s+bitangent;/g) !== -1;
let numComponents = containsSt && containsNormal ? 2.0 : 1.0;
numComponents += containsTangent || containsBitangent ? 1 : 0;
const type = numComponents > 1 ? `vec${numComponents}` : "float";
const attributeName = "compressedAttributes";
const attributeDecl = `in ${type} ${attributeName};`;
let globalDecl = "";
let decode = "";
if (containsSt) {
globalDecl += "vec2 st;\n";
const stComponent =
numComponents > 1 ? `${attributeName}.x` : attributeName;
decode += ` st = czm_decompressTextureCoordinates(${stComponent});\n`;
}
if (containsNormal && containsTangent && containsBitangent) {
globalDecl += "vec3 normal;\n" + "vec3 tangent;\n" + "vec3 bitangent;\n";
decode += ` czm_octDecode(${attributeName}.${
containsSt ? "yz" : "xy"
}, normal, tangent, bitangent);\n`;
} else {
if (containsNormal) {
globalDecl += "vec3 normal;\n";
decode += ` normal = czm_octDecode(${attributeName}${
numComponents > 1 ? `.${containsSt ? "y" : "x"}` : ""
});\n`;
}
Iif (containsTangent) {
globalDecl += "vec3 tangent;\n";
decode += ` tangent = czm_octDecode(${attributeName}.${
containsSt && containsNormal ? "z" : "y"
});\n`;
}
Iif (containsBitangent) {
globalDecl += "vec3 bitangent;\n";
decode += ` bitangent = czm_octDecode(${attributeName}.${
containsSt && containsNormal ? "z" : "y"
});\n`;
}
}
let modifiedVS = vertexShaderSource;
modifiedVS = modifiedVS.replace(/in\s+vec3\s+normal;/g, "");
modifiedVS = modifiedVS.replace(/in\s+vec2\s+st;/g, "");
modifiedVS = modifiedVS.replace(/in\s+vec3\s+tangent;/g, "");
modifiedVS = modifiedVS.replace(/in\s+vec3\s+bitangent;/g, "");
modifiedVS = ShaderSource.replaceMain(modifiedVS, "czm_non_compressed_main");
const compressedMain =
`${"void main() \n" + "{ \n"}${decode} czm_non_compressed_main(); \n` +
`}`;
return [attributeDecl, globalDecl, modifiedVS, compressedMain].join("\n");
}
function depthClampVS(vertexShaderSource) {
let modifiedVS = ShaderSource.replaceMain(
vertexShaderSource,
"czm_non_depth_clamp_main",
);
modifiedVS +=
"void main() {\n" +
" czm_non_depth_clamp_main();\n" +
" gl_Position = czm_depthClamp(gl_Position);" +
"}\n";
return modifiedVS;
}
function depthClampFS(fragmentShaderSource) {
let modifiedFS = ShaderSource.replaceMain(
fragmentShaderSource,
"czm_non_depth_clamp_main",
);
modifiedFS +=
"void main() {\n" +
" czm_non_depth_clamp_main();\n" +
" #if defined(LOG_DEPTH)\n" +
" czm_writeLogDepth();\n" +
" #else\n" +
" czm_writeDepthClamp();\n" +
" #endif\n" +
"}\n";
return modifiedFS;
}
function validateShaderMatching(shaderProgram, attributeLocations) {
// For a VAO and shader program to be compatible, the VAO must have
// all active attribute in the shader program. The VAO may have
// extra attributes with the only concern being a potential
// performance hit due to extra memory bandwidth and cache pollution.
// The shader source could have extra attributes that are not used,
// but there is no guarantee they will be optimized out.
//
// Here, we validate that the VAO has all attributes required
// to match the shader program.
const shaderAttributes = shaderProgram.vertexAttributes;
//>>includeStart('debug', pragmas.debug);
for (const name in shaderAttributes) {
if (shaderAttributes.hasOwnProperty(name)) {
if (!defined(attributeLocations[name])) {
throw new DeveloperError(
`Appearance/Geometry mismatch. The appearance requires vertex shader attribute input '${name}', which was not computed as part of the Geometry. Use the appearance's vertexFormat property when constructing the geometry.`,
);
}
}
}
//>>includeEnd('debug');
}
function getUniformFunction(uniforms, name) {
return function () {
return uniforms[name];
};
}
const numberOfCreationWorkers = Math.max(
FeatureDetection.hardwareConcurrency - 1,
1,
);
let createGeometryTaskProcessors;
const combineGeometryTaskProcessor = new TaskProcessor("combineGeometry");
function loadAsynchronous(primitive, frameState) {
let instances;
let geometry;
let i;
let j;
const instanceIds = primitive._instanceIds;
if (primitive._state === PrimitiveState.READY) {
instances = Array.isArray(primitive.geometryInstances)
? primitive.geometryInstances
: [primitive.geometryInstances];
const length = (primitive._numberOfInstances = instances.length);
const promises = [];
let subTasks = [];
for (i = 0; i < length; ++i) {
geometry = instances[i].geometry;
instanceIds.push(instances[i].id);
//>>includeStart('debug', pragmas.debug);
Iif (
(defined(geometry._workerName) && defined(geometry._workerPath)) ||
(!defined(geometry._workerName) && !defined(geometry._workerPath))
) {
throw new DeveloperError(
"Must define either _workerName or _workerPath for asynchronous geometry.",
);
}
//>>includeEnd('debug');
subTasks.push({
moduleName: geometry._workerName,
modulePath: geometry._workerPath,
geometry: geometry,
});
}
if (!defined(createGeometryTaskProcessors)) {
createGeometryTaskProcessors = new Array(numberOfCreationWorkers);
for (i = 0; i < numberOfCreationWorkers; i++) {
createGeometryTaskProcessors[i] = new TaskProcessor("createGeometry");
}
}
let subTask;
subTasks = subdivideArray(subTasks, numberOfCreationWorkers);
for (i = 0; i < subTasks.length; i++) {
let packedLength = 0;
const workerSubTasks = subTasks[i];
const workerSubTasksLength = workerSubTasks.length;
for (j = 0; j < workerSubTasksLength; ++j) {
subTask = workerSubTasks[j];
geometry = subTask.geometry;
Eif (defined(geometry.constructor.pack)) {
subTask.offset = packedLength;
packedLength +=
geometry.constructor.packedLength ?? geometry.packedLength;
}
}
let subTaskTransferableObjects;
if (packedLength > 0) {
const array = new Float64Array(packedLength);
subTaskTransferableObjects = [array.buffer];
for (j = 0; j < workerSubTasksLength; ++j) {
subTask = workerSubTasks[j];
geometry = subTask.geometry;
Eif (defined(geometry.constructor.pack)) {
geometry.constructor.pack(geometry, array, subTask.offset);
subTask.geometry = array;
}
}
}
promises.push(
createGeometryTaskProcessors[i].scheduleTask(
{
subTasks: subTasks[i],
},
subTaskTransferableObjects,
),
);
}
primitive._state = PrimitiveState.CREATING;
Promise.all(promises)
.then(function (results) {
primitive._createGeometryResults = results;
primitive._state = PrimitiveState.CREATED;
})
.catch(function (error) {
setReady(primitive, frameState, PrimitiveState.FAILED, error);
});
} else if (primitive._state === PrimitiveState.CREATED) {
const transferableObjects = [];
instances = Array.isArray(primitive.geometryInstances)
? primitive.geometryInstances
: [primitive.geometryInstances];
const scene3DOnly = frameState.scene3DOnly;
const projection = frameState.mapProjection;
const promise = combineGeometryTaskProcessor.scheduleTask(
PrimitivePipeline.packCombineGeometryParameters(
{
createGeometryResults: primitive._createGeometryResults,
instances: instances,
ellipsoid: projection.ellipsoid,
projection: projection,
elementIndexUintSupported: frameState.context.elementIndexUint,
scene3DOnly: scene3DOnly,
vertexCacheOptimize: primitive.vertexCacheOptimize,
compressVertices: primitive.compressVertices,
modelMatrix: primitive.modelMatrix,
createPickOffsets: primitive._createPickOffsets,
},
transferableObjects,
),
transferableObjects,
);
primitive._createGeometryResults = undefined;
primitive._state = PrimitiveState.COMBINING;
Promise.resolve(promise)
.then(function (packedResult) {
const result =
PrimitivePipeline.unpackCombineGeometryResults(packedResult);
primitive._geometries = result.geometries;
primitive._attributeLocations = result.attributeLocations;
primitive.modelMatrix = Matrix4.clone(
result.modelMatrix,
primitive.modelMatrix,
);
primitive._pickOffsets = result.pickOffsets;
primitive._offsetInstanceExtend = result.offsetInstanceExtend;
primitive._instanceBoundingSpheres = result.boundingSpheres;
primitive._instanceBoundingSpheresCV = result.boundingSpheresCV;
if (
defined(primitive._geometries) &&
primitive._geometries.length > 0
) {
primitive._recomputeBoundingSpheres = true;
primitive._state = PrimitiveState.COMBINED;
} else {
setReady(primitive, frameState, PrimitiveState.FAILED, undefined);
}
})
.catch(function (error) {
setReady(primitive, frameState, PrimitiveState.FAILED, error);
});
}
}
function loadSynchronous(primitive, frameState) {
const instances = Array.isArray(primitive.geometryInstances)
? primitive.geometryInstances
: [primitive.geometryInstances];
const length = (primitive._numberOfInstances = instances.length);
const clonedInstances = new Array(length);
const instanceIds = primitive._instanceIds;
let instance;
let i;
let geometryIndex = 0;
for (i = 0; i < length; i++) {
instance = instances[i];
const geometry = instance.geometry;
let createdGeometry;
if (defined(geometry.attributes) && defined(geometry.primitiveType)) {
createdGeometry = cloneGeometry(geometry);
} else {
createdGeometry = geometry.constructor.createGeometry(geometry);
}
clonedInstances[geometryIndex++] = cloneInstance(instance, createdGeometry);
instanceIds.push(instance.id);
}
clonedInstances.length = geometryIndex;
const scene3DOnly = frameState.scene3DOnly;
const projection = frameState.mapProjection;
const result = PrimitivePipeline.combineGeometry({
instances: clonedInstances,
ellipsoid: projection.ellipsoid,
projection: projection,
elementIndexUintSupported: frameState.context.elementIndexUint,
scene3DOnly: scene3DOnly,
vertexCacheOptimize: primitive.vertexCacheOptimize,
compressVertices: primitive.compressVertices,
modelMatrix: primitive.modelMatrix,
createPickOffsets: primitive._createPickOffsets,
});
primitive._geometries = result.geometries;
primitive._attributeLocations = result.attributeLocations;
primitive.modelMatrix = Matrix4.clone(
result.modelMatrix,
primitive.modelMatrix,
);
primitive._pickOffsets = result.pickOffsets;
primitive._offsetInstanceExtend = result.offsetInstanceExtend;
primitive._instanceBoundingSpheres = result.boundingSpheres;
primitive._instanceBoundingSpheresCV = result.boundingSpheresCV;
if (defined(primitive._geometries) && primitive._geometries.length > 0) {
primitive._recomputeBoundingSpheres = true;
primitive._state = PrimitiveState.COMBINED;
} else {
setReady(primitive, frameState, PrimitiveState.FAILED, undefined);
}
}
function recomputeBoundingSpheres(primitive, frameState) {
const offsetIndex = primitive._batchTableAttributeIndices.offset;
if (!primitive._recomputeBoundingSpheres || !defined(offsetIndex)) {
primitive._recomputeBoundingSpheres = false;
return;
}
let i;
const offsetInstanceExtend = primitive._offsetInstanceExtend;
const boundingSpheres = primitive._instanceBoundingSpheres;
const length = boundingSpheres.length;
let newBoundingSpheres = primitive._tempBoundingSpheres;
Eif (!defined(newBoundingSpheres)) {
newBoundingSpheres = new Array(length);
for (i = 0; i < length; i++) {
newBoundingSpheres[i] = new BoundingSphere();
}
primitive._tempBoundingSpheres = newBoundingSpheres;
}
for (i = 0; i < length; ++i) {
let newBS = newBoundingSpheres[i];
const offset = primitive._batchTable.getBatchedAttribute(
i,
offsetIndex,
new Cartesian3(),
);
newBS = boundingSpheres[i].clone(newBS);
transformBoundingSphere(newBS, offset, offsetInstanceExtend[i]);
}
const combinedBS = [];
const combinedWestBS = [];
const combinedEastBS = [];
for (i = 0; i < length; ++i) {
const bs = newBoundingSpheres[i];
const minX = bs.center.x - bs.radius;
if (
minX > 0 ||
BoundingSphere.intersectPlane(bs, Plane.ORIGIN_ZX_PLANE) !==
Intersect.INTERSECTING
) {
combinedBS.push(bs);
} else E{
combinedWestBS.push(bs);
combinedEastBS.push(bs);
}
}
let resultBS1 = combinedBS[0];
let resultBS2 = combinedEastBS[0];
let resultBS3 = combinedWestBS[0];
for (i = 1; i < combinedBS.length; i++) {
resultBS1 = BoundingSphere.union(resultBS1, combinedBS[i]);
}
for (i = 1; i < combinedEastBS.length; i++) {
resultBS2 = BoundingSphere.union(resultBS2, combinedEastBS[i]);
}
for (i = 1; i < combinedWestBS.length; i++) {
resultBS3 = BoundingSphere.union(resultBS3, combinedWestBS[i]);
}
const result = [];
Eif (defined(resultBS1)) {
result.push(resultBS1);
}
Iif (defined(resultBS2)) {
result.push(resultBS2);
}
Iif (defined(resultBS3)) {
result.push(resultBS3);
}
for (i = 0; i < result.length; i++) {
const boundingSphere = result[i].clone(primitive._boundingSpheres[i]);
primitive._boundingSpheres[i] = boundingSphere;
primitive._boundingSphereCV[i] = BoundingSphere.projectTo2D(
boundingSphere,
frameState.mapProjection,
primitive._boundingSphereCV[i],
);
}
Primitive._updateBoundingVolumes(
primitive,
frameState,
primitive.modelMatrix,
true,
);
primitive._recomputeBoundingSpheres = false;
}
const scratchBoundingSphereCenterEncoded = new EncodedCartesian3();
const scratchBoundingSphereCartographic = new Cartographic();
const scratchBoundingSphereCenter2D = new Cartesian3();
const scratchBoundingSphere = new BoundingSphere();
function updateBatchTableBoundingSpheres(primitive, frameState) {
const hasDistanceDisplayCondition = defined(
primitive._batchTableAttributeIndices.distanceDisplayCondition,
);
if (
!hasDistanceDisplayCondition ||
primitive._batchTableBoundingSpheresUpdated
) {
return;
}
const indices = primitive._batchTableBoundingSphereAttributeIndices;
const center3DHighIndex = indices.center3DHigh;
const center3DLowIndex = indices.center3DLow;
const center2DHighIndex = indices.center2DHigh;
const center2DLowIndex = indices.center2DLow;
const radiusIndex = indices.radius;
const projection = frameState.mapProjection;
const ellipsoid = projection.ellipsoid;
const batchTable = primitive._batchTable;
const boundingSpheres = primitive._instanceBoundingSpheres;
const length = boundingSpheres.length;
for (let i = 0; i < length; ++i) {
let boundingSphere = boundingSpheres[i];
Iif (!defined(boundingSphere)) {
continue;
}
const modelMatrix = primitive.modelMatrix;
Eif (defined(modelMatrix)) {
boundingSphere = BoundingSphere.transform(
boundingSphere,
modelMatrix,
scratchBoundingSphere,
);
}
const center = boundingSphere.center;
const radius = boundingSphere.radius;
let encodedCenter = EncodedCartesian3.fromCartesian(
center,
scratchBoundingSphereCenterEncoded,
);
batchTable.setBatchedAttribute(i, center3DHighIndex, encodedCenter.high);
batchTable.setBatchedAttribute(i, center3DLowIndex, encodedCenter.low);
if (!frameState.scene3DOnly) {
const cartographic = ellipsoid.cartesianToCartographic(
center,
scratchBoundingSphereCartographic,
);
const center2D = projection.project(
cartographic,
scratchBoundingSphereCenter2D,
);
encodedCenter = EncodedCartesian3.fromCartesian(
center2D,
scratchBoundingSphereCenterEncoded,
);
batchTable.setBatchedAttribute(i, center2DHighIndex, encodedCenter.high);
batchTable.setBatchedAttribute(i, center2DLowIndex, encodedCenter.low);
}
batchTable.setBatchedAttribute(i, radiusIndex, radius);
}
primitive._batchTableBoundingSpheresUpdated = true;
}
const offsetScratchCartesian = new Cartesian3();
const offsetCenterScratch = new Cartesian3();
function updateBatchTableOffsets(primitive, frameState) {
const hasOffset = defined(primitive._batchTableAttributeIndices.offset);
if (
!hasOffset ||
primitive._batchTableOffsetsUpdated ||
frameState.scene3DOnly
) {
return;
}
const index2D = primitive._batchTableOffsetAttribute2DIndex;
const projection = frameState.mapProjection;
const ellipsoid = projection.ellipsoid;
const batchTable = primitive._batchTable;
const boundingSpheres = primitive._instanceBoundingSpheres;
const length = boundingSpheres.length;
for (let i = 0; i < length; ++i) {
let boundingSphere = boundingSpheres[i];
Iif (!defined(boundingSphere)) {
continue;
}
const offset = batchTable.getBatchedAttribute(
i,
primitive._batchTableAttributeIndices.offset,
);
Eif (Cartesian3.equals(offset, Cartesian3.ZERO)) {
batchTable.setBatchedAttribute(i, index2D, Cartesian3.ZERO);
continue;
}
const modelMatrix = primitive.modelMatrix;
if (defined(modelMatrix)) {
boundingSphere = BoundingSphere.transform(
boundingSphere,
modelMatrix,
scratchBoundingSphere,
);
}
let center = boundingSphere.center;
center = ellipsoid.scaleToGeodeticSurface(center, offsetCenterScratch);
let cartographic = ellipsoid.cartesianToCartographic(
center,
scratchBoundingSphereCartographic,
);
const center2D = projection.project(
cartographic,
scratchBoundingSphereCenter2D,
);
const newPoint = Cartesian3.add(offset, center, offsetScratchCartesian);
cartographic = ellipsoid.cartesianToCartographic(newPoint, cartographic);
const newPointProjected = projection.project(
cartographic,
offsetScratchCartesian,
);
const newVector = Cartesian3.subtract(
newPointProjected,
center2D,
offsetScratchCartesian,
);
const x = newVector.x;
newVector.x = newVector.z;
newVector.z = newVector.y;
newVector.y = x;
batchTable.setBatchedAttribute(i, index2D, newVector);
}
primitive._batchTableOffsetsUpdated = true;
}
function createVertexArray(primitive, frameState) {
const attributeLocations = primitive._attributeLocations;
const geometries = primitive._geometries;
const scene3DOnly = frameState.scene3DOnly;
const context = frameState.context;
const va = [];
const length = geometries.length;
for (let i = 0; i < length; ++i) {
const geometry = geometries[i];
va.push(
VertexArray.fromGeometry({
context: context,
geometry: geometry,
attributeLocations: attributeLocations,
bufferUsage: BufferUsage.STATIC_DRAW,
interleave: primitive._interleave,
}),
);
if (defined(primitive._createBoundingVolumeFunction)) {
primitive._createBoundingVolumeFunction(frameState, geometry);
} else {
primitive._boundingSpheres.push(
BoundingSphere.clone(geometry.boundingSphere),
);
primitive._boundingSphereWC.push(new BoundingSphere());
if (!scene3DOnly) {
const center = geometry.boundingSphereCV.center;
const x = center.x;
const y = center.y;
const z = center.z;
center.x = z;
center.y = x;
center.z = y;
primitive._boundingSphereCV.push(
BoundingSphere.clone(geometry.boundingSphereCV),
);
primitive._boundingSphere2D.push(new BoundingSphere());
primitive._boundingSphereMorph.push(new BoundingSphere());
}
}
}
primitive._va = va;
primitive._primitiveType = geometries[0].primitiveType;
if (primitive.releaseGeometryInstances) {
primitive.geometryInstances = undefined;
}
primitive._geometries = undefined;
setReady(primitive, frameState, PrimitiveState.COMPLETE, undefined);
}
function createRenderStates(primitive, context, appearance, twoPasses) {
let renderState = appearance.getRenderState();
let rs;
if (twoPasses) {
rs = clone(renderState, false);
rs.cull = {
enabled: true,
face: CullFace.BACK,
};
primitive._frontFaceRS = RenderState.fromCache(rs);
rs.cull.face = CullFace.FRONT;
primitive._backFaceRS = RenderState.fromCache(rs);
} else {
primitive._frontFaceRS = RenderState.fromCache(renderState);
primitive._backFaceRS = primitive._frontFaceRS;
}
rs = clone(renderState, false);
if (defined(primitive._depthFailAppearance)) {
rs.depthTest.enabled = false;
}
if (defined(primitive._depthFailAppearance)) {
renderState = primitive._depthFailAppearance.getRenderState();
rs = clone(renderState, false);
rs.depthTest.func = DepthFunction.GREATER;
Iif (twoPasses) {
rs.cull = {
enabled: true,
face: CullFace.BACK,
};
primitive._frontFaceDepthFailRS = RenderState.fromCache(rs);
rs.cull.face = CullFace.FRONT;
primitive._backFaceDepthFailRS = RenderState.fromCache(rs);
} else {
primitive._frontFaceDepthFailRS = RenderState.fromCache(rs);
primitive._backFaceDepthFailRS = primitive._frontFaceRS;
}
}
}
function createShaderProgram(primitive, frameState, appearance) {
const context = frameState.context;
const attributeLocations = primitive._attributeLocations;
let vs = primitive._batchTable.getVertexShaderCallback()(
appearance.vertexShaderSource,
);
vs = Primitive._appendOffsetToShader(primitive, vs);
vs = Primitive._appendShowToShader(primitive, vs);
vs = Primitive._appendDistanceDisplayConditionToShader(
primitive,
vs,
frameState.scene3DOnly,
);
vs = appendPickToVertexShader(vs);
vs = Primitive._updateColorAttribute(primitive, vs, false);
vs = modifyForEncodedNormals(primitive, vs);
vs = Primitive._modifyShaderPosition(primitive, vs, frameState.scene3DOnly);
let fs = appearance.getFragmentShaderSource();
fs = appendPickToFragmentShader(fs);
primitive._sp = ShaderProgram.replaceCache({
context: context,
shaderProgram: primitive._sp,
vertexShaderSource: vs,
fragmentShaderSource: fs,
attributeLocations: attributeLocations,
});
validateShaderMatching(primitive._sp, attributeLocations);
if (defined(primitive._depthFailAppearance)) {
vs = primitive._batchTable.getVertexShaderCallback()(
primitive._depthFailAppearance.vertexShaderSource,
);
vs = Primitive._appendShowToShader(primitive, vs);
vs = Primitive._appendDistanceDisplayConditionToShader(
primitive,
vs,
frameState.scene3DOnly,
);
vs = appendPickToVertexShader(vs);
vs = Primitive._updateColorAttribute(primitive, vs, true);
vs = modifyForEncodedNormals(primitive, vs);
vs = Primitive._modifyShaderPosition(primitive, vs, frameState.scene3DOnly);
vs = depthClampVS(vs);
fs = primitive._depthFailAppearance.getFragmentShaderSource();
fs = appendPickToFragmentShader(fs);
fs = depthClampFS(fs);
primitive._spDepthFail = ShaderProgram.replaceCache({
context: context,
shaderProgram: primitive._spDepthFail,
vertexShaderSource: vs,
fragmentShaderSource: fs,
attributeLocations: attributeLocations,
});
validateShaderMatching(primitive._spDepthFail, attributeLocations);
}
}
const modifiedModelViewScratch = new Matrix4();
const rtcScratch = new Cartesian3();
function getUniforms(primitive, appearance, material, frameState) {
// Create uniform map by combining uniforms from the appearance and material if either have uniforms.
const materialUniformMap = defined(material) ? material._uniforms : undefined;
const appearanceUniformMap = {};
const appearanceUniforms = appearance.uniforms;
Iif (defined(appearanceUniforms)) {
// Convert to uniform map of functions for the renderer
for (const name in appearanceUniforms) {
if (appearanceUniforms.hasOwnProperty(name)) {
//>>includeStart('debug', pragmas.debug);
if (defined(materialUniformMap) && defined(materialUniformMap[name])) {
// Later, we could rename uniforms behind-the-scenes if needed.
throw new DeveloperError(
`Appearance and material have a uniform with the same name: ${name}`,
);
}
//>>includeEnd('debug');
appearanceUniformMap[name] = getUniformFunction(
appearanceUniforms,
name,
);
}
}
}
let uniforms = combine(appearanceUniformMap, materialUniformMap);
uniforms = primitive._batchTable.getUniformMapCallback()(uniforms);
if (defined(primitive.rtcCenter)) {
uniforms.u_modifiedModelView = function () {
const viewMatrix = frameState.context.uniformState.view;
Matrix4.multiply(
viewMatrix,
primitive._modelMatrix,
modifiedModelViewScratch,
);
Matrix4.multiplyByPoint(
modifiedModelViewScratch,
primitive.rtcCenter,
rtcScratch,
);
Matrix4.setTranslation(
modifiedModelViewScratch,
rtcScratch,
modifiedModelViewScratch,
);
return modifiedModelViewScratch;
};
}
return uniforms;
}
function createCommands(
primitive,
appearance,
material,
translucent,
twoPasses,
colorCommands,
pickCommands,
frameState,
) {
const uniforms = getUniforms(primitive, appearance, material, frameState);
let depthFailUniforms;
if (defined(primitive._depthFailAppearance)) {
depthFailUniforms = getUniforms(
primitive,
primitive._depthFailAppearance,
primitive._depthFailAppearance.material,
frameState,
);
}
const pass = translucent ? Pass.TRANSLUCENT : Pass.OPAQUE;
let multiplier = twoPasses ? 2 : 1;
multiplier *= defined(primitive._depthFailAppearance) ? 2 : 1;
colorCommands.length = primitive._va.length * multiplier;
const length = colorCommands.length;
let vaIndex = 0;
for (let i = 0; i < length; ++i) {
let colorCommand;
if (twoPasses) {
colorCommand = colorCommands[i];
if (!defined(colorCommand)) {
colorCommand = colorCommands[i] = new DrawCommand({
owner: primitive,
primitiveType: primitive._primitiveType,
});
}
colorCommand.vertexArray = primitive._va[vaIndex];
colorCommand.renderState = primitive._backFaceRS;
colorCommand.shaderProgram = primitive._sp;
colorCommand.uniformMap = uniforms;
colorCommand.pass = pass;
++i;
}
colorCommand = colorCommands[i];
if (!defined(colorCommand)) {
colorCommand = colorCommands[i] = new DrawCommand({
owner: primitive,
primitiveType: primitive._primitiveType,
});
}
colorCommand.vertexArray = primitive._va[vaIndex];
colorCommand.renderState = primitive._frontFaceRS;
colorCommand.shaderProgram = primitive._sp;
colorCommand.uniformMap = uniforms;
colorCommand.pass = pass;
if (defined(primitive._depthFailAppearance)) {
Iif (twoPasses) {
++i;
colorCommand = colorCommands[i];
if (!defined(colorCommand)) {
colorCommand = colorCommands[i] = new DrawCommand({
owner: primitive,
primitiveType: primitive._primitiveType,
});
}
colorCommand.vertexArray = primitive._va[vaIndex];
colorCommand.renderState = primitive._backFaceDepthFailRS;
colorCommand.shaderProgram = primitive._spDepthFail;
colorCommand.uniformMap = depthFailUniforms;
colorCommand.pass = pass;
}
++i;
colorCommand = colorCommands[i];
Eif (!defined(colorCommand)) {
colorCommand = colorCommands[i] = new DrawCommand({
owner: primitive,
primitiveType: primitive._primitiveType,
});
}
colorCommand.vertexArray = primitive._va[vaIndex];
colorCommand.renderState = primitive._frontFaceDepthFailRS;
colorCommand.shaderProgram = primitive._spDepthFail;
colorCommand.uniformMap = depthFailUniforms;
colorCommand.pass = pass;
}
++vaIndex;
}
}
Primitive._updateBoundingVolumes = function (
primitive,
frameState,
modelMatrix,
forceUpdate,
) {
let i;
let length;
let boundingSphere;
if (forceUpdate || !Matrix4.equals(modelMatrix, primitive._modelMatrix)) {
Matrix4.clone(modelMatrix, primitive._modelMatrix);
length = primitive._boundingSpheres.length;
for (i = 0; i < length; ++i) {
boundingSphere = primitive._boundingSpheres[i];
Eif (defined(boundingSphere)) {
primitive._boundingSphereWC[i] = BoundingSphere.transform(
boundingSphere,
modelMatrix,
primitive._boundingSphereWC[i],
);
if (!frameState.scene3DOnly) {
primitive._boundingSphere2D[i] = BoundingSphere.clone(
primitive._boundingSphereCV[i],
primitive._boundingSphere2D[i],
);
primitive._boundingSphereMorph[i] = BoundingSphere.union(
primitive._boundingSphereWC[i],
primitive._boundingSphereCV[i],
);
}
}
}
}
// Update bounding volumes for primitives that are sized in pixels.
// The pixel size in meters varies based on the distance from the camera.
const pixelSize = primitive.appearance.pixelSize;
Iif (defined(pixelSize)) {
length = primitive._boundingSpheres.length;
for (i = 0; i < length; ++i) {
boundingSphere = primitive._boundingSpheres[i];
const boundingSphereWC = primitive._boundingSphereWC[i];
const pixelSizeInMeters = frameState.camera.getPixelSize(
boundingSphere,
frameState.context.drawingBufferWidth,
frameState.context.drawingBufferHeight,
);
const sizeInMeters = pixelSizeInMeters * pixelSize;
boundingSphereWC.radius = boundingSphere.radius + sizeInMeters;
}
}
};
function updateAndQueueCommands(
primitive,
frameState,
colorCommands,
pickCommands,
modelMatrix,
cull,
debugShowBoundingVolume,
twoPasses,
) {
//>>includeStart('debug', pragmas.debug);
if (
frameState.mode !== SceneMode.SCENE3D &&
!Matrix4.equals(modelMatrix, Matrix4.IDENTITY)
) {
throw new DeveloperError(
"Primitive.modelMatrix is only supported in 3D mode.",
);
}
//>>includeEnd('debug');
Primitive._updateBoundingVolumes(primitive, frameState, modelMatrix);
let boundingSpheres;
if (frameState.mode === SceneMode.SCENE3D) {
boundingSpheres = primitive._boundingSphereWC;
} else if (frameState.mode === SceneMode.COLUMBUS_VIEW) {
boundingSpheres = primitive._boundingSphereCV;
} else if (
frameState.mode === SceneMode.SCENE2D &&
defined(primitive._boundingSphere2D)
) {
boundingSpheres = primitive._boundingSphere2D;
} else Eif (defined(primitive._boundingSphereMorph)) {
boundingSpheres = primitive._boundingSphereMorph;
}
const commandList = frameState.commandList;
const passes = frameState.passes;
Eif (passes.render || passes.pick) {
const allowPicking = primitive.allowPicking;
const castShadows = ShadowMode.castShadows(primitive.shadows);
const receiveShadows = ShadowMode.receiveShadows(primitive.shadows);
const colorLength = colorCommands.length;
let factor = twoPasses ? 2 : 1;
factor *= defined(primitive._depthFailAppearance) ? 2 : 1;
for (let j = 0; j < colorLength; ++j) {
const sphereIndex = Math.floor(j / factor);
const colorCommand = colorCommands[j];
colorCommand.modelMatrix = modelMatrix;
colorCommand.boundingVolume = boundingSpheres[sphereIndex];
colorCommand.cull = cull;
colorCommand.debugShowBoundingVolume = debugShowBoundingVolume;
colorCommand.castShadows = castShadows;
colorCommand.receiveShadows = receiveShadows;
if (allowPicking) {
colorCommand.pickId = "v_pickColor";
} else {
colorCommand.pickId = undefined;
}
commandList.push(colorCommand);
}
}
}
/**
* Called when {@link Viewer} or {@link CesiumWidget} render the scene to
* get the draw commands needed to render this primitive.
* <p>
* Do not call this function directly. This is documented just to
* list the exceptions that may be propagated when the scene is rendered:
* </p>
*
* @exception {DeveloperError} All instance geometries must have the same primitiveType.
* @exception {DeveloperError} Appearance and material have a uniform with the same name.
* @exception {DeveloperError} Primitive.modelMatrix is only supported in 3D mode.
* @exception {RuntimeError} Vertex texture fetch support is required to render primitives with per-instance attributes. The maximum number of vertex texture image units must be greater than zero.
*/
Primitive.prototype.update = function (frameState) {
if (
(!defined(this.geometryInstances) && this._va.length === 0) ||
(defined(this.geometryInstances) &&
Array.isArray(this.geometryInstances) &&
this.geometryInstances.length === 0) ||
!defined(this.appearance) ||
(frameState.mode !== SceneMode.SCENE3D && frameState.scene3DOnly) ||
(!frameState.passes.render && !frameState.passes.pick)
) {
return;
}
if (defined(this._error)) {
throw this._error;
}
//>>includeStart('debug', pragmas.debug);
if (defined(this.rtcCenter) && !frameState.scene3DOnly) {
throw new DeveloperError(
"RTC rendering is only available for 3D only scenes.",
);
}
//>>includeEnd('debug');
if (this._state === PrimitiveState.FAILED) {
return;
}
const context = frameState.context;
if (!defined(this._batchTable)) {
createBatchTable(this, context);
}
Eif (this._batchTable.attributes.length > 0) {
Iif (ContextLimits.maximumVertexTextureImageUnits === 0) {
throw new RuntimeError(
"Vertex texture fetch support is required to render primitives with per-instance attributes. The maximum number of vertex texture image units must be greater than zero.",
);
}
this._batchTable.update(frameState);
}
if (
this._state !== PrimitiveState.COMPLETE &&
this._state !== PrimitiveState.COMBINED
) {
if (this.asynchronous) {
loadAsynchronous(this, frameState);
} else {
loadSynchronous(this, frameState);
}
}
if (this._state === PrimitiveState.COMBINED) {
updateBatchTableBoundingSpheres(this, frameState);
updateBatchTableOffsets(this, frameState);
createVertexArray(this, frameState);
}
if (!this.show || this._state !== PrimitiveState.COMPLETE) {
return;
}
if (!this._batchTableOffsetsUpdated) {
updateBatchTableOffsets(this, frameState);
}
if (this._recomputeBoundingSpheres) {
recomputeBoundingSpheres(this, frameState);
}
// Create or recreate render state and shader program if appearance/material changed
const appearance = this.appearance;
const material = appearance.material;
let createRS = false;
let createSP = false;
if (this._appearance !== appearance) {
this._appearance = appearance;
this._material = material;
createRS = true;
createSP = true;
} else if (this._material !== material) {
this._material = material;
createSP = true;
}
const depthFailAppearance = this.depthFailAppearance;
const depthFailMaterial = defined(depthFailAppearance)
? depthFailAppearance.material
: undefined;
if (this._depthFailAppearance !== depthFailAppearance) {
this._depthFailAppearance = depthFailAppearance;
this._depthFailMaterial = depthFailMaterial;
createRS = true;
createSP = true;
} else Iif (this._depthFailMaterial !== depthFailMaterial) {
this._depthFailMaterial = depthFailMaterial;
createSP = true;
}
const translucent = this._appearance.isTranslucent();
if (this._translucent !== translucent) {
this._translucent = translucent;
createRS = true;
}
if (defined(this._material)) {
this._material.update(context);
}
const twoPasses = appearance.closed && translucent;
if (createRS) {
const rsFunc = this._createRenderStatesFunction ?? createRenderStates;
rsFunc(this, context, appearance, twoPasses);
}
if (createSP) {
const spFunc = this._createShaderProgramFunction ?? createShaderProgram;
spFunc(this, frameState, appearance);
}
if (createRS || createSP) {
const commandFunc = this._createCommandsFunction ?? createCommands;
commandFunc(
this,
appearance,
material,
translucent,
twoPasses,
this._colorCommands,
this._pickCommands,
frameState,
);
}
const updateAndQueueCommandsFunc =
this._updateAndQueueCommandsFunction ?? updateAndQueueCommands;
updateAndQueueCommandsFunc(
this,
frameState,
this._colorCommands,
this._pickCommands,
this.modelMatrix,
this.cull,
this.debugShowBoundingVolume,
twoPasses,
);
};
const offsetBoundingSphereScratch1 = new BoundingSphere();
const offsetBoundingSphereScratch2 = new BoundingSphere();
function transformBoundingSphere(boundingSphere, offset, offsetAttribute) {
Iif (offsetAttribute === GeometryOffsetAttribute.TOP) {
const origBS = BoundingSphere.clone(
boundingSphere,
offsetBoundingSphereScratch1,
);
const offsetBS = BoundingSphere.clone(
boundingSphere,
offsetBoundingSphereScratch2,
);
offsetBS.center = Cartesian3.add(offsetBS.center, offset, offsetBS.center);
boundingSphere = BoundingSphere.union(origBS, offsetBS, boundingSphere);
} else Eif (offsetAttribute === GeometryOffsetAttribute.ALL) {
boundingSphere.center = Cartesian3.add(
boundingSphere.center,
offset,
boundingSphere.center,
);
}
return boundingSphere;
}
function createGetFunction(batchTable, instanceIndex, attributeIndex) {
return function () {
const attributeValue = batchTable.getBatchedAttribute(
instanceIndex,
attributeIndex,
);
const attribute = batchTable.attributes[attributeIndex];
const componentsPerAttribute = attribute.componentsPerAttribute;
const value = ComponentDatatype.createTypedArray(
attribute.componentDatatype,
componentsPerAttribute,
);
if (defined(attributeValue.constructor.pack)) {
attributeValue.constructor.pack(attributeValue, value, 0);
} else {
value[0] = attributeValue;
}
return value;
};
}
function createSetFunction(
batchTable,
instanceIndex,
attributeIndex,
primitive,
name,
) {
return function (value) {
//>>includeStart('debug', pragmas.debug);
if (
!defined(value) ||
!defined(value.length) ||
value.length < 1 ||
value.length > 4
) {
throw new DeveloperError(
"value must be and array with length between 1 and 4.",
);
}
//>>includeEnd('debug');
const attributeValue = getAttributeValue(value);
batchTable.setBatchedAttribute(
instanceIndex,
attributeIndex,
attributeValue,
);
Iif (name === "offset") {
primitive._recomputeBoundingSpheres = true;
primitive._batchTableOffsetsUpdated = false;
}
};
}
const offsetScratch = new Cartesian3();
function createBoundingSphereProperties(primitive, properties, index) {
properties.boundingSphere = {
get: function () {
let boundingSphere = primitive._instanceBoundingSpheres[index];
if (defined(boundingSphere)) {
boundingSphere = boundingSphere.clone();
const modelMatrix = primitive.modelMatrix;
const offset = properties.offset;
Iif (defined(offset)) {
transformBoundingSphere(
boundingSphere,
Cartesian3.fromArray(offset.get(), 0, offsetScratch),
primitive._offsetInstanceExtend[index],
);
}
Eif (defined(modelMatrix)) {
boundingSphere = BoundingSphere.transform(
boundingSphere,
modelMatrix,
);
}
}
return boundingSphere;
},
};
properties.boundingSphereCV = {
get: function () {
return primitive._instanceBoundingSpheresCV[index];
},
};
}
function createPickIdProperty(primitive, properties, index) {
properties.pickId = {
get: function () {
return primitive._pickIds[index];
},
};
}
/**
* Returns the modifiable per-instance attributes for a {@link GeometryInstance}.
*
* @param {*} id The id of the {@link GeometryInstance}.
* @returns {object} The typed array in the attribute's format or undefined if the is no instance with id.
*
* @exception {DeveloperError} must call update before calling getGeometryInstanceAttributes.
*
* @example
* const attributes = primitive.getGeometryInstanceAttributes('an id');
* attributes.color = Cesium.ColorGeometryInstanceAttribute.toValue(Cesium.Color.AQUA);
* attributes.show = Cesium.ShowGeometryInstanceAttribute.toValue(true);
* attributes.distanceDisplayCondition = Cesium.DistanceDisplayConditionGeometryInstanceAttribute.toValue(100.0, 10000.0);
* attributes.offset = Cesium.OffsetGeometryInstanceAttribute.toValue(Cartesian3.IDENTITY);
*/
Primitive.prototype.getGeometryInstanceAttributes = function (id) {
//>>includeStart('debug', pragmas.debug);
if (!defined(id)) {
throw new DeveloperError("id is required");
}
if (!defined(this._batchTable)) {
throw new DeveloperError(
"must call update before calling getGeometryInstanceAttributes",
);
}
//>>includeEnd('debug');
let attributes = this._perInstanceAttributeCache.get(id);
if (defined(attributes)) {
return attributes;
}
let index = -1;
const lastIndex = this._lastPerInstanceAttributeIndex;
const ids = this._instanceIds;
const length = ids.length;
for (let i = 0; i < length; ++i) {
const curIndex = (lastIndex + i) % length;
if (id === ids[curIndex]) {
index = curIndex;
break;
}
}
if (index === -1) {
return undefined;
}
const batchTable = this._batchTable;
const perInstanceAttributeIndices = this._batchTableAttributeIndices;
attributes = {};
const properties = {};
for (const name in perInstanceAttributeIndices) {
Eif (perInstanceAttributeIndices.hasOwnProperty(name)) {
const attributeIndex = perInstanceAttributeIndices[name];
properties[name] = {
get: createGetFunction(batchTable, index, attributeIndex),
set: createSetFunction(batchTable, index, attributeIndex, this, name),
};
}
}
createBoundingSphereProperties(this, properties, index);
createPickIdProperty(this, properties, index);
Object.defineProperties(attributes, properties);
this._lastPerInstanceAttributeIndex = index;
this._perInstanceAttributeCache.set(id, attributes);
return attributes;
};
/**
* Returns true if this object was destroyed; otherwise, false.
* <p>
* If this object was destroyed, it should not be used; calling any function other than
* <code>isDestroyed</code> will result in a {@link DeveloperError} exception.
* </p>
*
* @returns {boolean} <code>true</code> if this object was destroyed; otherwise, <code>false</code>.
*
* @see Primitive#destroy
*/
Primitive.prototype.isDestroyed = function () {
return false;
};
/**
* Destroys the WebGL resources held by this object. Destroying an object allows for deterministic
* release of WebGL resources, instead of relying on the garbage collector to destroy this object.
* <p>
* Once an object is destroyed, it should not be used; calling any function other than
* <code>isDestroyed</code> will result in a {@link DeveloperError} exception. Therefore,
* assign the return value (<code>undefined</code>) to the object as done in the example.
* </p>
*
* @exception {DeveloperError} This object was destroyed, i.e., destroy() was called.
*
*
* @example
* e = e && e.destroy();
*
* @see Primitive#isDestroyed
*/
Primitive.prototype.destroy = function () {
let length;
let i;
this._sp = this._sp && this._sp.destroy();
this._spDepthFail = this._spDepthFail && this._spDepthFail.destroy();
const va = this._va;
length = va.length;
for (i = 0; i < length; ++i) {
va[i].destroy();
}
this._va = undefined;
const pickIds = this._pickIds;
length = pickIds.length;
for (i = 0; i < length; ++i) {
pickIds[i].destroy();
}
this._pickIds = undefined;
this._batchTable = this._batchTable && this._batchTable.destroy();
//These objects may be fairly large and reference other large objects (like Entities)
//We explicitly set them to undefined here so that the memory can be freed
//even if a reference to the destroyed Primitive has been kept around.
this._instanceIds = undefined;
this._perInstanceAttributeCache = undefined;
this._attributeLocations = undefined;
return destroyObject(this);
};
function setReady(primitive, frameState, state, error) {
primitive._error = error;
primitive._state = state;
frameState.afterRender.push(function () {
primitive._ready =
primitive._state === PrimitiveState.COMPLETE ||
primitive._state === PrimitiveState.FAILED;
// Returning 'true' here will ensure that another rendering pass is
// triggered after the primitive actually became ready, to make sure
// that it is in fact rendered even in "request render mode"
return true;
});
}
export default Primitive;
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