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import BoundingSphere from "../Core/BoundingSphere.js";
import Cartesian2 from "../Core/Cartesian2.js";
import Cartesian3 from "../Core/Cartesian3.js";
import Check from "../Core/Check.js";
import Color from "../Core/Color.js";
import defined from "../Core/defined.js";
import destroyObject from "../Core/destroyObject.js";
import DeveloperError from "../Core/DeveloperError.js";
import Ellipsoid from "../Core/Ellipsoid.js";
import Matrix4 from "../Core/Matrix4.js";
import Resource from "../Core/Resource.js";
import ColorBlendMode from "../Scene/ColorBlendMode.js";
import HeightReference, {
isHeightReferenceClamp,
} from "../Scene/HeightReference.js";
import Model from "../Scene/Model/Model.js";
import ModelAnimationLoop from "../Scene/ModelAnimationLoop.js";
import ShadowMode from "../Scene/ShadowMode.js";
import BoundingSphereState from "./BoundingSphereState.js";
import Property from "./Property.js";
import Cartographic from "../Core/Cartographic.js";
const defaultScale = 1.0;
const defaultEnableVerticalExaggeration = true;
const defaultMinimumPixelSize = 0.0;
const defaultIncrementallyLoadTextures = true;
const defaultClampAnimations = true;
const defaultShadows = ShadowMode.ENABLED;
const defaultHeightReference = HeightReference.NONE;
const defaultSilhouetteColor = Color.RED;
const defaultSilhouetteSize = 0.0;
const defaultColor = Color.WHITE;
const defaultColorBlendMode = ColorBlendMode.HIGHLIGHT;
const defaultColorBlendAmount = 0.5;
const defaultImageBasedLightingFactor = new Cartesian2(1.0, 1.0);
const defaultEnvironmentMapOptions = {
maximumPositionEpsilon: Number.POSITIVE_INFINITY,
};
const modelMatrixScratch = new Matrix4();
const nodeMatrixScratch = new Matrix4();
const scratchColor = new Color();
const scratchArray = new Array(4);
const scratchCartesian = new Cartesian3();
/**
* A {@link Visualizer} which maps {@link Entity#model} to a {@link Model}.
* @alias ModelVisualizer
* @constructor
*
* @param {Scene} scene The scene the primitives will be rendered in.
* @param {EntityCollection} entityCollection The entityCollection to visualize.
*/
function ModelVisualizer(scene, entityCollection) {
//>>includeStart('debug', pragmas.debug);
Check.typeOf.object("scene", scene);
Check.typeOf.object("entityCollection", entityCollection);
//>>includeEnd('debug');
entityCollection.collectionChanged.addEventListener(
ModelVisualizer.prototype._onCollectionChanged,
this,
);
this._scene = scene;
this._primitives = scene.primitives;
this._entityCollection = entityCollection;
this._modelHash = {};
this._entitiesToVisualize = new AssociativeArray();
this._onCollectionChanged(entityCollection, entityCollection.values, [], []);
}
async function createModelPrimitive(
visualizer,
entity,
resource,
incrementallyLoadTextures,
environmentMapOptions,
) {
const primitives = visualizer._primitives;
const modelHash = visualizer._modelHash;
try {
const model = await Model.fromGltfAsync({
url: resource,
incrementallyLoadTextures: incrementallyLoadTextures,
scene: visualizer._scene,
environmentMapOptions: environmentMapOptions,
});
Iif (visualizer.isDestroyed() || !defined(modelHash[entity.id])) {
return;
}
model.id = entity;
primitives.add(model);
modelHash[entity.id].modelPrimitive = model;
model.errorEvent.addEventListener((error) => {
if (!defined(modelHash[entity.id])) {
return;
}
console.log(error);
// Texture failures when incrementallyLoadTextures
// will not affect the ability to compute the bounding sphere
if (error.name !== "TextureError" && model.incrementallyLoadTextures) {
modelHash[entity.id].loadFailed = true;
}
});
} catch (error) {
Iif (visualizer.isDestroyed() || !defined(modelHash[entity.id])) {
return;
}
console.log(error);
modelHash[entity.id].loadFailed = true;
}
}
/**
* Updates models created this visualizer to match their
* Entity counterpart at the given time.
*
* @param {JulianDate} time The time to update to.
* @returns {boolean} This function always returns true.
*/
ModelVisualizer.prototype.update = function (time) {
//>>includeStart('debug', pragmas.debug);
if (!defined(time)) {
throw new DeveloperError("time is required.");
}
//>>includeEnd('debug');
const entities = this._entitiesToVisualize.values;
const modelHash = this._modelHash;
const primitives = this._primitives;
for (let i = 0, len = entities.length; i < len; i++) {
const entity = entities[i];
const modelGraphics = entity._model;
let resource;
let modelData = modelHash[entity.id];
let show =
entity.isShowing &&
entity.isAvailable(time) &&
Property.getValueOrDefault(modelGraphics._show, time, true);
let modelMatrix;
Eif (show) {
modelMatrix = entity.computeModelMatrix(time, modelMatrixScratch);
resource = Resource.createIfNeeded(
Property.getValueOrUndefined(modelGraphics._uri, time),
);
show = defined(modelMatrix) && defined(resource);
}
Iif (!show) {
if (defined(modelData) && modelData.modelPrimitive) {
modelData.modelPrimitive.show = false;
}
continue;
}
if (!defined(modelData) || resource.url !== modelData.url) {
Iif (defined(modelData?.modelPrimitive)) {
primitives.removeAndDestroy(modelData.modelPrimitive);
delete modelHash[entity.id];
}
modelData = {
modelPrimitive: undefined,
url: resource.url,
animationsRunning: false,
nodeTransformationsScratch: {},
articulationsScratch: {},
loadFailed: false,
modelUpdated: false,
environmentMapOptionsScratch: {
...defaultEnvironmentMapOptions,
},
};
modelHash[entity.id] = modelData;
const incrementallyLoadTextures = Property.getValueOrDefault(
modelGraphics._incrementallyLoadTextures,
time,
defaultIncrementallyLoadTextures,
);
const environmentMapOptions = Property.getValueOrDefault(
modelGraphics._environmentMapOptions,
time,
defaultEnvironmentMapOptions,
modelData.environmentMapOptionsScratch,
);
createModelPrimitive(
this,
entity,
resource,
incrementallyLoadTextures,
environmentMapOptions,
);
}
const model = modelData.modelPrimitive;
if (!defined(model)) {
continue;
}
model.show = true;
model.scale = Property.getValueOrDefault(
modelGraphics._scale,
time,
defaultScale,
);
model.enableVerticalExaggeration = Property.getValueOrDefault(
modelGraphics._enableVerticalExaggeration,
time,
defaultEnableVerticalExaggeration,
);
model.minimumPixelSize = Property.getValueOrDefault(
modelGraphics._minimumPixelSize,
time,
defaultMinimumPixelSize,
);
model.maximumScale = Property.getValueOrUndefined(
modelGraphics._maximumScale,
time,
);
model.modelMatrix = Matrix4.clone(modelMatrix, model.modelMatrix);
model.shadows = Property.getValueOrDefault(
modelGraphics._shadows,
time,
defaultShadows,
);
model.heightReference = Property.getValueOrDefault(
modelGraphics._heightReference,
time,
defaultHeightReference,
);
model.distanceDisplayCondition = Property.getValueOrUndefined(
modelGraphics._distanceDisplayCondition,
time,
);
model.silhouetteColor = Property.getValueOrDefault(
modelGraphics._silhouetteColor,
time,
defaultSilhouetteColor,
scratchColor,
);
model.silhouetteSize = Property.getValueOrDefault(
modelGraphics._silhouetteSize,
time,
defaultSilhouetteSize,
);
model.color = Property.getValueOrDefault(
modelGraphics._color,
time,
defaultColor,
scratchColor,
);
model.colorBlendMode = Property.getValueOrDefault(
modelGraphics._colorBlendMode,
time,
defaultColorBlendMode,
);
model.colorBlendAmount = Property.getValueOrDefault(
modelGraphics._colorBlendAmount,
time,
defaultColorBlendAmount,
);
model.clippingPlanes = Property.getValueOrUndefined(
modelGraphics._clippingPlanes,
time,
);
model.clampAnimations = Property.getValueOrDefault(
modelGraphics._clampAnimations,
time,
defaultClampAnimations,
);
model.imageBasedLighting.imageBasedLightingFactor =
Property.getValueOrDefault(
modelGraphics._imageBasedLightingFactor,
time,
defaultImageBasedLightingFactor,
);
let lightColor = Property.getValueOrUndefined(
modelGraphics._lightColor,
time,
);
// Convert from Color to Cartesian3
if (defined(lightColor)) {
Color.pack(lightColor, scratchArray, 0);
lightColor = Cartesian3.unpack(scratchArray, 0, scratchCartesian);
}
model.lightColor = lightColor;
model.customShader = Property.getValueOrUndefined(
modelGraphics._customShader,
time,
);
// It's possible for getBoundingSphere to run before
// model becomes ready and these properties are updated
modelHash[entity.id].modelUpdated = true;
if (model.ready) {
const runAnimations = Property.getValueOrDefault(
modelGraphics._runAnimations,
time,
true,
);
Eif (modelData.animationsRunning !== runAnimations) {
if (runAnimations) {
model.activeAnimations.addAll({
loop: ModelAnimationLoop.REPEAT,
});
} else E{
model.activeAnimations.removeAll();
}
modelData.animationsRunning = runAnimations;
}
// Apply node transformations
const nodeTransformations = Property.getValueOrUndefined(
modelGraphics._nodeTransformations,
time,
modelData.nodeTransformationsScratch,
);
if (defined(nodeTransformations)) {
const nodeNames = Object.keys(nodeTransformations);
for (
let nodeIndex = 0, nodeLength = nodeNames.length;
nodeIndex < nodeLength;
++nodeIndex
) {
const nodeName = nodeNames[nodeIndex];
const nodeTransformation = nodeTransformations[nodeName];
Iif (!defined(nodeTransformation)) {
continue;
}
const modelNode = model.getNode(nodeName);
Iif (!defined(modelNode)) {
continue;
}
const transformationMatrix = Matrix4.fromTranslationRotationScale(
nodeTransformation,
nodeMatrixScratch,
);
modelNode.matrix = Matrix4.multiply(
modelNode.originalMatrix,
transformationMatrix,
transformationMatrix,
);
}
}
// Apply articulations
let anyArticulationUpdated = false;
const articulations = Property.getValueOrUndefined(
modelGraphics._articulations,
time,
modelData.articulationsScratch,
);
if (defined(articulations)) {
const articulationStageKeys = Object.keys(articulations);
for (
let s = 0, numKeys = articulationStageKeys.length;
s < numKeys;
++s
) {
const key = articulationStageKeys[s];
const articulationStageValue = articulations[key];
Iif (!defined(articulationStageValue)) {
continue;
}
anyArticulationUpdated = true;
model.setArticulationStage(key, articulationStageValue);
}
}
if (anyArticulationUpdated) {
model.applyArticulations();
}
}
}
return true;
};
/**
* Returns true if this object was destroyed; otherwise, false.
*
* @returns {boolean} True if this object was destroyed; otherwise, false.
*/
ModelVisualizer.prototype.isDestroyed = function () {
return false;
};
/**
* Removes and destroys all primitives created by this instance.
*/
ModelVisualizer.prototype.destroy = function () {
this._entityCollection.collectionChanged.removeEventListener(
ModelVisualizer.prototype._onCollectionChanged,
this,
);
const entities = this._entitiesToVisualize.values;
const modelHash = this._modelHash;
const primitives = this._primitives;
for (let i = entities.length - 1; i > -1; i--) {
removeModel(this, entities[i], modelHash, primitives);
}
return destroyObject(this);
};
const scratchPosition = new Cartesian3();
const scratchCartographic = new Cartographic();
/**
* Computes a bounding sphere which encloses the visualization produced for the specified entity.
* The bounding sphere is in the fixed frame of the scene's globe.
*
* @param {Entity} entity The entity whose bounding sphere to compute.
* @param {BoundingSphere} result The bounding sphere onto which to store the result.
* @returns {BoundingSphereState} BoundingSphereState.DONE if the result contains the bounding sphere,
* BoundingSphereState.PENDING if the result is still being computed, or
* BoundingSphereState.FAILED if the entity has no visualization in the current scene.
* @private
*/
ModelVisualizer.prototype.getBoundingSphere = function (entity, result) {
//>>includeStart('debug', pragmas.debug);
if (!defined(entity)) {
throw new DeveloperError("entity is required.");
}
if (!defined(result)) {
throw new DeveloperError("result is required.");
}
//>>includeEnd('debug');
const modelData = this._modelHash[entity.id];
if (!defined(modelData)) {
return BoundingSphereState.FAILED;
}
if (modelData.loadFailed) {
return BoundingSphereState.FAILED;
}
const model = modelData.modelPrimitive;
if (!defined(model) || !model.show) {
return BoundingSphereState.PENDING;
}
if (!model.ready || !modelData.modelUpdated) {
return BoundingSphereState.PENDING;
}
const scene = this._scene;
const ellipsoid = scene.ellipsoid ?? Ellipsoid.default;
const hasHeightReference = model.heightReference !== HeightReference.NONE;
if (hasHeightReference) {
const modelMatrix = model.modelMatrix;
scratchPosition.x = modelMatrix[12];
scratchPosition.y = modelMatrix[13];
scratchPosition.z = modelMatrix[14];
const cartoPosition = ellipsoid.cartesianToCartographic(
scratchPosition,
scratchCartographic,
);
const height = scene.getHeight(cartoPosition, model.heightReference);
Eif (defined(height)) {
if (isHeightReferenceClamp(model.heightReference)) {
cartoPosition.height = height;
} else {
cartoPosition.height += height;
}
}
BoundingSphere.clone(model.boundingSphere, result);
result.center = ellipsoid.cartographicToCartesian(cartoPosition);
return BoundingSphereState.DONE;
}
BoundingSphere.clone(model.boundingSphere, result);
return BoundingSphereState.DONE;
};
/**
* @private
*/
ModelVisualizer.prototype._onCollectionChanged = function (
entityCollection,
added,
removed,
changed,
) {
let i;
let entity;
const entities = this._entitiesToVisualize;
const modelHash = this._modelHash;
const primitives = this._primitives;
for (i = added.length - 1; i > -1; i--) {
entity = added[i];
if (defined(entity._model) && defined(entity._position)) {
entities.set(entity.id, entity);
}
}
for (i = changed.length - 1; i > -1; i--) {
entity = changed[i];
if (defined(entity._model) && defined(entity._position)) {
clearNodeTransformationsArticulationsScratch(entity, modelHash);
entities.set(entity.id, entity);
} else {
removeModel(this, entity, modelHash, primitives);
entities.remove(entity.id);
}
}
for (i = removed.length - 1; i > -1; i--) {
entity = removed[i];
removeModel(this, entity, modelHash, primitives);
entities.remove(entity.id);
}
};
function removeModel(visualizer, entity, modelHash, primitives) {
const modelData = modelHash[entity.id];
if (defined(modelData)) {
primitives.removeAndDestroy(modelData.modelPrimitive);
delete modelHash[entity.id];
}
}
function clearNodeTransformationsArticulationsScratch(entity, modelHash) {
const modelData = modelHash[entity.id];
Iif (defined(modelData)) {
modelData.nodeTransformationsScratch = {};
modelData.articulationsScratch = {};
}
}
export default ModelVisualizer;
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