File: //var/www/aspa/three/core/BufferAttribute.js
import { Vector3 } from '../math/Vector3.js';
import { Vector2 } from '../math/Vector2.js';
import { denormalize, normalize } from '../math/MathUtils.js';
import { StaticDrawUsage, FloatType } from '../constants.js';
import { fromHalfFloat, toHalfFloat } from '../extras/DataUtils.js';
import { warnOnce } from '../utils.js';
const _vector = /*@__PURE__*/ new Vector3();
const _vector2 = /*@__PURE__*/ new Vector2();
class BufferAttribute {
constructor( array, itemSize, normalized = false ) {
if ( Array.isArray( array ) ) {
throw new TypeError( 'THREE.BufferAttribute: array should be a Typed Array.' );
}
this.isBufferAttribute = true;
this.name = '';
this.array = array;
this.itemSize = itemSize;
this.count = array !== undefined ? array.length / itemSize : 0;
this.normalized = normalized;
this.usage = StaticDrawUsage;
this._updateRange = { offset: 0, count: - 1 };
this.updateRanges = [];
this.gpuType = FloatType;
this.version = 0;
}
onUploadCallback() {}
set needsUpdate( value ) {
if ( value === true ) this.version ++;
}
get updateRange() {
warnOnce( 'THREE.BufferAttribute: updateRange() is deprecated and will be removed in r169. Use addUpdateRange() instead.' ); // @deprecated, r159
return this._updateRange;
}
setUsage( value ) {
this.usage = value;
return this;
}
addUpdateRange( start, count ) {
this.updateRanges.push( { start, count } );
}
clearUpdateRanges() {
this.updateRanges.length = 0;
}
copy( source ) {
this.name = source.name;
this.array = new source.array.constructor( source.array );
this.itemSize = source.itemSize;
this.count = source.count;
this.normalized = source.normalized;
this.usage = source.usage;
this.gpuType = source.gpuType;
return this;
}
copyAt( index1, attribute, index2 ) {
index1 *= this.itemSize;
index2 *= attribute.itemSize;
for ( let i = 0, l = this.itemSize; i < l; i ++ ) {
this.array[ index1 + i ] = attribute.array[ index2 + i ];
}
return this;
}
copyArray( array ) {
this.array.set( array );
return this;
}
applyMatrix3( m ) {
if ( this.itemSize === 2 ) {
for ( let i = 0, l = this.count; i < l; i ++ ) {
_vector2.fromBufferAttribute( this, i );
_vector2.applyMatrix3( m );
this.setXY( i, _vector2.x, _vector2.y );
}
} else if ( this.itemSize === 3 ) {
for ( let i = 0, l = this.count; i < l; i ++ ) {
_vector.fromBufferAttribute( this, i );
_vector.applyMatrix3( m );
this.setXYZ( i, _vector.x, _vector.y, _vector.z );
}
}
return this;
}
applyMatrix4( m ) {
for ( let i = 0, l = this.count; i < l; i ++ ) {
_vector.fromBufferAttribute( this, i );
_vector.applyMatrix4( m );
this.setXYZ( i, _vector.x, _vector.y, _vector.z );
}
return this;
}
applyNormalMatrix( m ) {
for ( let i = 0, l = this.count; i < l; i ++ ) {
_vector.fromBufferAttribute( this, i );
_vector.applyNormalMatrix( m );
this.setXYZ( i, _vector.x, _vector.y, _vector.z );
}
return this;
}
transformDirection( m ) {
for ( let i = 0, l = this.count; i < l; i ++ ) {
_vector.fromBufferAttribute( this, i );
_vector.transformDirection( m );
this.setXYZ( i, _vector.x, _vector.y, _vector.z );
}
return this;
}
set( value, offset = 0 ) {
// Matching BufferAttribute constructor, do not normalize the array.
this.array.set( value, offset );
return this;
}
getComponent( index, component ) {
let value = this.array[ index * this.itemSize + component ];
if ( this.normalized ) value = denormalize( value, this.array );
return value;
}
setComponent( index, component, value ) {
if ( this.normalized ) value = normalize( value, this.array );
this.array[ index * this.itemSize + component ] = value;
return this;
}
getX( index ) {
let x = this.array[ index * this.itemSize ];
if ( this.normalized ) x = denormalize( x, this.array );
return x;
}
setX( index, x ) {
if ( this.normalized ) x = normalize( x, this.array );
this.array[ index * this.itemSize ] = x;
return this;
}
getY( index ) {
let y = this.array[ index * this.itemSize + 1 ];
if ( this.normalized ) y = denormalize( y, this.array );
return y;
}
setY( index, y ) {
if ( this.normalized ) y = normalize( y, this.array );
this.array[ index * this.itemSize + 1 ] = y;
return this;
}
getZ( index ) {
let z = this.array[ index * this.itemSize + 2 ];
if ( this.normalized ) z = denormalize( z, this.array );
return z;
}
setZ( index, z ) {
if ( this.normalized ) z = normalize( z, this.array );
this.array[ index * this.itemSize + 2 ] = z;
return this;
}
getW( index ) {
let w = this.array[ index * this.itemSize + 3 ];
if ( this.normalized ) w = denormalize( w, this.array );
return w;
}
setW( index, w ) {
if ( this.normalized ) w = normalize( w, this.array );
this.array[ index * this.itemSize + 3 ] = w;
return this;
}
setXY( index, x, y ) {
index *= this.itemSize;
if ( this.normalized ) {
x = normalize( x, this.array );
y = normalize( y, this.array );
}
this.array[ index + 0 ] = x;
this.array[ index + 1 ] = y;
return this;
}
setXYZ( index, x, y, z ) {
index *= this.itemSize;
if ( this.normalized ) {
x = normalize( x, this.array );
y = normalize( y, this.array );
z = normalize( z, this.array );
}
this.array[ index + 0 ] = x;
this.array[ index + 1 ] = y;
this.array[ index + 2 ] = z;
return this;
}
setXYZW( index, x, y, z, w ) {
index *= this.itemSize;
if ( this.normalized ) {
x = normalize( x, this.array );
y = normalize( y, this.array );
z = normalize( z, this.array );
w = normalize( w, this.array );
}
this.array[ index + 0 ] = x;
this.array[ index + 1 ] = y;
this.array[ index + 2 ] = z;
this.array[ index + 3 ] = w;
return this;
}
onUpload( callback ) {
this.onUploadCallback = callback;
return this;
}
clone() {
return new this.constructor( this.array, this.itemSize ).copy( this );
}
toJSON() {
const data = {
itemSize: this.itemSize,
type: this.array.constructor.name,
array: Array.from( this.array ),
normalized: this.normalized
};
if ( this.name !== '' ) data.name = this.name;
if ( this.usage !== StaticDrawUsage ) data.usage = this.usage;
return data;
}
}
//
class Int8BufferAttribute extends BufferAttribute {
constructor( array, itemSize, normalized ) {
super( new Int8Array( array ), itemSize, normalized );
}
}
class Uint8BufferAttribute extends BufferAttribute {
constructor( array, itemSize, normalized ) {
super( new Uint8Array( array ), itemSize, normalized );
}
}
class Uint8ClampedBufferAttribute extends BufferAttribute {
constructor( array, itemSize, normalized ) {
super( new Uint8ClampedArray( array ), itemSize, normalized );
}
}
class Int16BufferAttribute extends BufferAttribute {
constructor( array, itemSize, normalized ) {
super( new Int16Array( array ), itemSize, normalized );
}
}
class Uint16BufferAttribute extends BufferAttribute {
constructor( array, itemSize, normalized ) {
super( new Uint16Array( array ), itemSize, normalized );
}
}
class Int32BufferAttribute extends BufferAttribute {
constructor( array, itemSize, normalized ) {
super( new Int32Array( array ), itemSize, normalized );
}
}
class Uint32BufferAttribute extends BufferAttribute {
constructor( array, itemSize, normalized ) {
super( new Uint32Array( array ), itemSize, normalized );
}
}
class Float16BufferAttribute extends BufferAttribute {
constructor( array, itemSize, normalized ) {
super( new Uint16Array( array ), itemSize, normalized );
this.isFloat16BufferAttribute = true;
}
getX( index ) {
let x = fromHalfFloat( this.array[ index * this.itemSize ] );
if ( this.normalized ) x = denormalize( x, this.array );
return x;
}
setX( index, x ) {
if ( this.normalized ) x = normalize( x, this.array );
this.array[ index * this.itemSize ] = toHalfFloat( x );
return this;
}
getY( index ) {
let y = fromHalfFloat( this.array[ index * this.itemSize + 1 ] );
if ( this.normalized ) y = denormalize( y, this.array );
return y;
}
setY( index, y ) {
if ( this.normalized ) y = normalize( y, this.array );
this.array[ index * this.itemSize + 1 ] = toHalfFloat( y );
return this;
}
getZ( index ) {
let z = fromHalfFloat( this.array[ index * this.itemSize + 2 ] );
if ( this.normalized ) z = denormalize( z, this.array );
return z;
}
setZ( index, z ) {
if ( this.normalized ) z = normalize( z, this.array );
this.array[ index * this.itemSize + 2 ] = toHalfFloat( z );
return this;
}
getW( index ) {
let w = fromHalfFloat( this.array[ index * this.itemSize + 3 ] );
if ( this.normalized ) w = denormalize( w, this.array );
return w;
}
setW( index, w ) {
if ( this.normalized ) w = normalize( w, this.array );
this.array[ index * this.itemSize + 3 ] = toHalfFloat( w );
return this;
}
setXY( index, x, y ) {
index *= this.itemSize;
if ( this.normalized ) {
x = normalize( x, this.array );
y = normalize( y, this.array );
}
this.array[ index + 0 ] = toHalfFloat( x );
this.array[ index + 1 ] = toHalfFloat( y );
return this;
}
setXYZ( index, x, y, z ) {
index *= this.itemSize;
if ( this.normalized ) {
x = normalize( x, this.array );
y = normalize( y, this.array );
z = normalize( z, this.array );
}
this.array[ index + 0 ] = toHalfFloat( x );
this.array[ index + 1 ] = toHalfFloat( y );
this.array[ index + 2 ] = toHalfFloat( z );
return this;
}
setXYZW( index, x, y, z, w ) {
index *= this.itemSize;
if ( this.normalized ) {
x = normalize( x, this.array );
y = normalize( y, this.array );
z = normalize( z, this.array );
w = normalize( w, this.array );
}
this.array[ index + 0 ] = toHalfFloat( x );
this.array[ index + 1 ] = toHalfFloat( y );
this.array[ index + 2 ] = toHalfFloat( z );
this.array[ index + 3 ] = toHalfFloat( w );
return this;
}
}
class Float32BufferAttribute extends BufferAttribute {
constructor( array, itemSize, normalized ) {
super( new Float32Array( array ), itemSize, normalized );
}
}
//
export {
Float32BufferAttribute,
Float16BufferAttribute,
Uint32BufferAttribute,
Int32BufferAttribute,
Uint16BufferAttribute,
Int16BufferAttribute,
Uint8ClampedBufferAttribute,
Uint8BufferAttribute,
Int8BufferAttribute,
BufferAttribute
};