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DRACOLoader: Support requests for multiple files in parallel.

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This commit is contained in:
Don McCurdy 2018-01-16 09:24:56 -08:00
parent 3ea3cd8b20
commit 6c954eac60
1 changed files with 9 additions and 10 deletions
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19
javascript/example/DRACOLoader.js
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@ -24,8 +24,6 @@ THREE.DRACOLoader = function(manager) {
this.verbosity = 0; this.verbosity = 0;
this.attributeOptions = {}; this.attributeOptions = {};
this.drawMode = THREE.TrianglesDrawMode; this.drawMode = THREE.TrianglesDrawMode;
// User defined unique id for attributes.
this.attributeUniqueIdMap = {};
// Native Draco attribute type to Three.JS attribute type. // Native Draco attribute type to Three.JS attribute type.
this.nativeAttributeMap = { this.nativeAttributeMap = {
'position' : 'POSITION', 'position' : 'POSITION',
@ -104,14 +102,15 @@ THREE.DRACOLoader.prototype = {
*/ */
decodeDracoFile: function(rawBuffer, callback, attributeUniqueIdMap) { decodeDracoFile: function(rawBuffer, callback, attributeUniqueIdMap) {
var scope = this; var scope = this;
this.attributeUniqueIdMap = attributeUniqueIdMap || {};
THREE.DRACOLoader.getDecoderModule() THREE.DRACOLoader.getDecoderModule()
.then( function ( module ) { .then( function ( module ) {
scope.decodeDracoFileInternal( rawBuffer, module.decoder, callback ); scope.decodeDracoFileInternal( rawBuffer, module.decoder, callback,
attributeUniqueIdMap );
}); });
}, },
decodeDracoFileInternal: function(rawBuffer, dracoDecoder, callback) { decodeDracoFileInternal: function(rawBuffer, dracoDecoder, callback,
attributeUniqueIdMap) {
/* /*
* Here is how to use Draco Javascript decoder and get the geometry. * Here is how to use Draco Javascript decoder and get the geometry.
*/ */
@ -137,7 +136,7 @@ THREE.DRACOLoader.prototype = {
throw new Error(errorMsg); throw new Error(errorMsg);
} }
callback(this.convertDracoGeometryTo3JS(dracoDecoder, decoder, callback(this.convertDracoGeometryTo3JS(dracoDecoder, decoder,
geometryType, buffer)); geometryType, buffer, attributeUniqueIdMap));
}, },
addAttributeToGeometry: function(dracoDecoder, decoder, dracoGeometry, addAttributeToGeometry: function(dracoDecoder, decoder, dracoGeometry,
@ -168,7 +167,7 @@ THREE.DRACOLoader.prototype = {
}, },
convertDracoGeometryTo3JS: function(dracoDecoder, decoder, geometryType, convertDracoGeometryTo3JS: function(dracoDecoder, decoder, geometryType,
buffer) { buffer, attributeUniqueIdMap) {
if (this.getAttributeOptions('position').skipDequantization === true) { if (this.getAttributeOptions('position').skipDequantization === true) {
decoder.SkipAttributeTransform(dracoDecoder.POSITION); decoder.SkipAttributeTransform(dracoDecoder.POSITION);
} }
@ -236,7 +235,7 @@ THREE.DRACOLoader.prototype = {
for (var attributeName in this.nativeAttributeMap) { for (var attributeName in this.nativeAttributeMap) {
// The native attribute type is only used when no unique Id is // The native attribute type is only used when no unique Id is
// provided. For example, loading .drc files. // provided. For example, loading .drc files.
if (this.attributeUniqueIdMap[attributeName] === undefined) { if (attributeUniqueIdMap[attributeName] === undefined) {
var attId = decoder.GetAttributeId(dracoGeometry, var attId = decoder.GetAttributeId(dracoGeometry,
dracoDecoder[this.nativeAttributeMap[attributeName]]); dracoDecoder[this.nativeAttributeMap[attributeName]]);
if (attId !== -1) { if (attId !== -1) {
@ -251,8 +250,8 @@ THREE.DRACOLoader.prototype = {
} }
// Add attributes of user specified unique id. E.g. GLTF models. // Add attributes of user specified unique id. E.g. GLTF models.
for (var attributeName in this.attributeUniqueIdMap) { for (var attributeName in attributeUniqueIdMap) {
var attributeId = this.attributeUniqueIdMap[attributeName]; var attributeId = attributeUniqueIdMap[attributeName];
var attribute = decoder.GetAttributeByUniqueId(dracoGeometry, var attribute = decoder.GetAttributeByUniqueId(dracoGeometry,
attributeId); attributeId);
this.addAttributeToGeometry(dracoDecoder, decoder, dracoGeometry, this.addAttributeToGeometry(dracoDecoder, decoder, dracoGeometry,