112 lines
1.7 KiB
JavaScript
112 lines
1.7 KiB
JavaScript
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/**
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* @author benaadams / https://twitter.com/ben_a_adams
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*/
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function InterleavedBuffer( array, stride ) {
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this.array = array;
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this.stride = stride;
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this.count = array !== undefined ? array.length / stride : 0;
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this.dynamic = false;
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this.updateRange = { offset: 0, count: - 1 };
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this.version = 0;
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}
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Object.defineProperty( InterleavedBuffer.prototype, 'needsUpdate', {
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set: function ( value ) {
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if ( value === true ) this.version ++;
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}
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} );
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Object.assign( InterleavedBuffer.prototype, {
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isInterleavedBuffer: true,
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onUploadCallback: function () {},
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setArray: function ( array ) {
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if ( Array.isArray( array ) ) {
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throw new TypeError( 'THREE.BufferAttribute: array should be a Typed Array.' );
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}
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this.count = array !== undefined ? array.length / this.stride : 0;
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this.array = array;
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return this;
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},
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setDynamic: function ( value ) {
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this.dynamic = value;
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return this;
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},
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copy: function ( source ) {
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this.array = new source.array.constructor( source.array );
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this.count = source.count;
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this.stride = source.stride;
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this.dynamic = source.dynamic;
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return this;
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},
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copyAt: function ( index1, attribute, index2 ) {
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index1 *= this.stride;
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index2 *= attribute.stride;
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for ( var i = 0, l = this.stride; i < l; i ++ ) {
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this.array[ index1 + i ] = attribute.array[ index2 + i ];
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}
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return this;
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},
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set: function ( value, offset ) {
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if ( offset === undefined ) offset = 0;
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this.array.set( value, offset );
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return this;
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},
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clone: function () {
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return new this.constructor().copy( this );
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},
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onUpload: function ( callback ) {
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this.onUploadCallback = callback;
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return this;
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}
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} );
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export { InterleavedBuffer };
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