1 | import { Vector4 } from '../math/Vector4.js';
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2 | import { Vector3 } from '../math/Vector3.js';
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3 | import { Vector2 } from '../math/Vector2.js';
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4 | import { Color } from '../math/Color.js';
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5 | import { StaticDrawUsage } from '../constants.js';
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6 |
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7 | const _vector = new Vector3();
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8 | const _vector2 = new Vector2();
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9 |
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10 | function BufferAttribute( array, itemSize, normalized ) {
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11 |
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12 | if ( Array.isArray( array ) ) {
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13 |
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14 | throw new TypeError( 'THREE.BufferAttribute: array should be a Typed Array.' );
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15 |
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16 | }
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17 |
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18 | this.name = '';
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19 |
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20 | this.array = array;
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21 | this.itemSize = itemSize;
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22 | this.count = array !== undefined ? array.length / itemSize : 0;
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23 | this.normalized = normalized === true;
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24 |
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25 | this.usage = StaticDrawUsage;
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26 | this.updateRange = { offset: 0, count: - 1 };
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27 |
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28 | this.version = 0;
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29 |
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30 | }
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31 |
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32 | Object.defineProperty( BufferAttribute.prototype, 'needsUpdate', {
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33 |
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34 | set: function ( value ) {
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35 |
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36 | if ( value === true ) this.version ++;
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37 |
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38 | }
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39 |
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40 | } );
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41 |
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42 | Object.assign( BufferAttribute.prototype, {
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43 |
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44 | isBufferAttribute: true,
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45 |
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46 | onUploadCallback: function () {},
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47 |
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48 | setUsage: function ( value ) {
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49 |
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50 | this.usage = value;
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51 |
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52 | return this;
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53 |
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54 | },
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55 |
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56 | copy: function ( source ) {
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57 |
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58 | this.name = source.name;
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59 | this.array = new source.array.constructor( source.array );
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60 | this.itemSize = source.itemSize;
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61 | this.count = source.count;
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62 | this.normalized = source.normalized;
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63 |
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64 | this.usage = source.usage;
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65 |
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66 | return this;
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67 |
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68 | },
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69 |
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70 | copyAt: function ( index1, attribute, index2 ) {
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71 |
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72 | index1 *= this.itemSize;
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73 | index2 *= attribute.itemSize;
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74 |
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75 | for ( let i = 0, l = this.itemSize; i < l; i ++ ) {
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76 |
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77 | this.array[ index1 + i ] = attribute.array[ index2 + i ];
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78 |
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79 | }
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80 |
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81 | return this;
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82 |
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83 | },
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84 |
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85 | copyArray: function ( array ) {
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86 |
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87 | this.array.set( array );
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88 |
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89 | return this;
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90 |
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91 | },
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92 |
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93 | copyColorsArray: function ( colors ) {
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94 |
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95 | const array = this.array;
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96 | let offset = 0;
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97 |
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98 | for ( let i = 0, l = colors.length; i < l; i ++ ) {
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99 |
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100 | let color = colors[ i ];
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101 |
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102 | if ( color === undefined ) {
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103 |
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104 | console.warn( 'THREE.BufferAttribute.copyColorsArray(): color is undefined', i );
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105 | color = new Color();
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106 |
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107 | }
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108 |
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109 | array[ offset ++ ] = color.r;
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110 | array[ offset ++ ] = color.g;
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111 | array[ offset ++ ] = color.b;
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112 |
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113 | }
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114 |
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115 | return this;
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116 |
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117 | },
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118 |
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119 | copyVector2sArray: function ( vectors ) {
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120 |
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121 | const array = this.array;
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122 | let offset = 0;
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123 |
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124 | for ( let i = 0, l = vectors.length; i < l; i ++ ) {
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125 |
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126 | let vector = vectors[ i ];
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127 |
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128 | if ( vector === undefined ) {
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129 |
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130 | console.warn( 'THREE.BufferAttribute.copyVector2sArray(): vector is undefined', i );
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131 | vector = new Vector2();
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132 |
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133 | }
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134 |
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135 | array[ offset ++ ] = vector.x;
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136 | array[ offset ++ ] = vector.y;
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137 |
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138 | }
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139 |
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140 | return this;
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141 |
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142 | },
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143 |
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144 | copyVector3sArray: function ( vectors ) {
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145 |
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146 | const array = this.array;
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147 | let offset = 0;
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148 |
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149 | for ( let i = 0, l = vectors.length; i < l; i ++ ) {
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150 |
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151 | let vector = vectors[ i ];
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152 |
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153 | if ( vector === undefined ) {
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154 |
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155 | console.warn( 'THREE.BufferAttribute.copyVector3sArray(): vector is undefined', i );
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156 | vector = new Vector3();
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157 |
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158 | }
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159 |
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160 | array[ offset ++ ] = vector.x;
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161 | array[ offset ++ ] = vector.y;
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162 | array[ offset ++ ] = vector.z;
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163 |
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164 | }
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165 |
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166 | return this;
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167 |
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168 | },
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169 |
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170 | copyVector4sArray: function ( vectors ) {
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171 |
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172 | const array = this.array;
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173 | let offset = 0;
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174 |
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175 | for ( let i = 0, l = vectors.length; i < l; i ++ ) {
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176 |
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177 | let vector = vectors[ i ];
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178 |
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179 | if ( vector === undefined ) {
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180 |
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181 | console.warn( 'THREE.BufferAttribute.copyVector4sArray(): vector is undefined', i );
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182 | vector = new Vector4();
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183 |
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184 | }
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185 |
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186 | array[ offset ++ ] = vector.x;
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187 | array[ offset ++ ] = vector.y;
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188 | array[ offset ++ ] = vector.z;
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189 | array[ offset ++ ] = vector.w;
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190 |
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191 | }
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192 |
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193 | return this;
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194 |
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195 | },
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196 |
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197 | applyMatrix3: function ( m ) {
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198 |
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199 | if ( this.itemSize === 2 ) {
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200 |
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201 | for ( let i = 0, l = this.count; i < l; i ++ ) {
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202 |
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203 | _vector2.fromBufferAttribute( this, i );
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204 | _vector2.applyMatrix3( m );
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205 |
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206 | this.setXY( i, _vector2.x, _vector2.y );
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207 |
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208 | }
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209 |
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210 | } else if ( this.itemSize === 3 ) {
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211 |
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212 | for ( let i = 0, l = this.count; i < l; i ++ ) {
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213 |
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214 | _vector.fromBufferAttribute( this, i );
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215 | _vector.applyMatrix3( m );
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216 |
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217 | this.setXYZ( i, _vector.x, _vector.y, _vector.z );
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218 |
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219 | }
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220 |
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221 | }
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222 |
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223 | return this;
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224 |
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225 | },
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226 |
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227 | applyMatrix4: function ( m ) {
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228 |
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229 | for ( let i = 0, l = this.count; i < l; i ++ ) {
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230 |
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231 | _vector.x = this.getX( i );
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232 | _vector.y = this.getY( i );
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233 | _vector.z = this.getZ( i );
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234 |
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235 | _vector.applyMatrix4( m );
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236 |
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237 | this.setXYZ( i, _vector.x, _vector.y, _vector.z );
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238 |
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239 | }
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240 |
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241 | return this;
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242 |
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243 | },
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244 |
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245 | applyNormalMatrix: function ( m ) {
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246 |
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247 | for ( let i = 0, l = this.count; i < l; i ++ ) {
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248 |
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249 | _vector.x = this.getX( i );
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250 | _vector.y = this.getY( i );
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251 | _vector.z = this.getZ( i );
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252 |
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253 | _vector.applyNormalMatrix( m );
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254 |
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255 | this.setXYZ( i, _vector.x, _vector.y, _vector.z );
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256 |
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257 | }
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258 |
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259 | return this;
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260 |
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261 | },
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262 |
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263 | transformDirection: function ( m ) {
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264 |
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265 | for ( let i = 0, l = this.count; i < l; i ++ ) {
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266 |
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267 | _vector.x = this.getX( i );
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268 | _vector.y = this.getY( i );
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269 | _vector.z = this.getZ( i );
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270 |
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271 | _vector.transformDirection( m );
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272 |
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273 | this.setXYZ( i, _vector.x, _vector.y, _vector.z );
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274 |
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275 | }
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276 |
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277 | return this;
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278 |
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279 | },
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280 |
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281 | set: function ( value, offset ) {
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282 |
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283 | if ( offset === undefined ) offset = 0;
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284 |
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285 | this.array.set( value, offset );
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286 |
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287 | return this;
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288 |
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289 | },
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290 |
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291 | getX: function ( index ) {
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292 |
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293 | return this.array[ index * this.itemSize ];
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294 |
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295 | },
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296 |
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297 | setX: function ( index, x ) {
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298 |
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299 | this.array[ index * this.itemSize ] = x;
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300 |
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301 | return this;
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302 |
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303 | },
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304 |
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305 | getY: function ( index ) {
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306 |
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307 | return this.array[ index * this.itemSize + 1 ];
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308 |
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309 | },
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310 |
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311 | setY: function ( index, y ) {
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312 |
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313 | this.array[ index * this.itemSize + 1 ] = y;
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314 |
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315 | return this;
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316 |
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317 | },
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318 |
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319 | getZ: function ( index ) {
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320 |
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321 | return this.array[ index * this.itemSize + 2 ];
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322 |
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323 | },
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324 |
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325 | setZ: function ( index, z ) {
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326 |
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327 | this.array[ index * this.itemSize + 2 ] = z;
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328 |
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329 | return this;
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330 |
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331 | },
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332 |
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333 | getW: function ( index ) {
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334 |
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335 | return this.array[ index * this.itemSize + 3 ];
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336 |
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337 | },
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338 |
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339 | setW: function ( index, w ) {
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340 |
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341 | this.array[ index * this.itemSize + 3 ] = w;
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342 |
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343 | return this;
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344 |
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345 | },
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346 |
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347 | setXY: function ( index, x, y ) {
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348 |
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349 | index *= this.itemSize;
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350 |
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351 | this.array[ index + 0 ] = x;
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352 | this.array[ index + 1 ] = y;
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353 |
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354 | return this;
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355 |
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356 | },
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357 |
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358 | setXYZ: function ( index, x, y, z ) {
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359 |
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360 | index *= this.itemSize;
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361 |
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362 | this.array[ index + 0 ] = x;
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363 | this.array[ index + 1 ] = y;
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364 | this.array[ index + 2 ] = z;
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365 |
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366 | return this;
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367 |
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368 | },
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369 |
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370 | setXYZW: function ( index, x, y, z, w ) {
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371 |
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372 | index *= this.itemSize;
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373 |
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374 | this.array[ index + 0 ] = x;
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375 | this.array[ index + 1 ] = y;
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376 | this.array[ index + 2 ] = z;
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377 | this.array[ index + 3 ] = w;
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378 |
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379 | return this;
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380 |
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381 | },
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382 |
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383 | onUpload: function ( callback ) {
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384 |
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385 | this.onUploadCallback = callback;
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386 |
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387 | return this;
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388 |
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389 | },
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390 |
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391 | clone: function () {
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392 |
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393 | return new this.constructor( this.array, this.itemSize ).copy( this );
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394 |
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395 | },
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396 |
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397 | toJSON: function () {
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398 |
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399 | return {
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400 | itemSize: this.itemSize,
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401 | type: this.array.constructor.name,
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402 | array: Array.prototype.slice.call( this.array ),
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403 | normalized: this.normalized
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404 | };
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405 |
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406 | }
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407 |
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408 | } );
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409 |
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410 |
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411 |
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412 | function Int8BufferAttribute( array, itemSize, normalized ) {
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413 |
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414 | BufferAttribute.call( this, new Int8Array( array ), itemSize, normalized );
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415 |
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416 | }
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417 |
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418 | Int8BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
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419 | Int8BufferAttribute.prototype.constructor = Int8BufferAttribute;
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420 |
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421 |
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422 | function Uint8BufferAttribute( array, itemSize, normalized ) {
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423 |
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424 | BufferAttribute.call( this, new Uint8Array( array ), itemSize, normalized );
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425 |
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426 | }
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427 |
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428 | Uint8BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
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429 | Uint8BufferAttribute.prototype.constructor = Uint8BufferAttribute;
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430 |
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431 |
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432 | function Uint8ClampedBufferAttribute( array, itemSize, normalized ) {
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433 |
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434 | BufferAttribute.call( this, new Uint8ClampedArray( array ), itemSize, normalized );
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435 |
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436 | }
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437 |
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438 | Uint8ClampedBufferAttribute.prototype = Object.create( BufferAttribute.prototype );
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439 | Uint8ClampedBufferAttribute.prototype.constructor = Uint8ClampedBufferAttribute;
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440 |
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441 |
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442 | function Int16BufferAttribute( array, itemSize, normalized ) {
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443 |
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444 | BufferAttribute.call( this, new Int16Array( array ), itemSize, normalized );
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445 |
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446 | }
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447 |
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448 | Int16BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
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449 | Int16BufferAttribute.prototype.constructor = Int16BufferAttribute;
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450 |
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451 |
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452 | function Uint16BufferAttribute( array, itemSize, normalized ) {
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453 |
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454 | BufferAttribute.call( this, new Uint16Array( array ), itemSize, normalized );
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455 |
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456 | }
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457 |
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458 | Uint16BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
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459 | Uint16BufferAttribute.prototype.constructor = Uint16BufferAttribute;
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460 |
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461 |
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462 | function Int32BufferAttribute( array, itemSize, normalized ) {
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463 |
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464 | BufferAttribute.call( this, new Int32Array( array ), itemSize, normalized );
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465 |
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466 | }
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467 |
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468 | Int32BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
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469 | Int32BufferAttribute.prototype.constructor = Int32BufferAttribute;
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470 |
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471 |
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472 | function Uint32BufferAttribute( array, itemSize, normalized ) {
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473 |
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474 | BufferAttribute.call( this, new Uint32Array( array ), itemSize, normalized );
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475 |
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476 | }
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477 |
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478 | Uint32BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
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479 | Uint32BufferAttribute.prototype.constructor = Uint32BufferAttribute;
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480 |
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481 |
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482 | function Float32BufferAttribute( array, itemSize, normalized ) {
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483 |
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484 | BufferAttribute.call( this, new Float32Array( array ), itemSize, normalized );
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485 |
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486 | }
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487 |
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488 | Float32BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
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489 | Float32BufferAttribute.prototype.constructor = Float32BufferAttribute;
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490 |
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491 |
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492 | function Float64BufferAttribute( array, itemSize, normalized ) {
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493 |
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494 | BufferAttribute.call( this, new Float64Array( array ), itemSize, normalized );
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495 |
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496 | }
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497 |
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498 | Float64BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
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499 | Float64BufferAttribute.prototype.constructor = Float64BufferAttribute;
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500 |
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501 |
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502 |
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503 | export {
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504 | Float64BufferAttribute,
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505 | Float32BufferAttribute,
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506 | Uint32BufferAttribute,
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507 | Int32BufferAttribute,
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508 | Uint16BufferAttribute,
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509 | Int16BufferAttribute,
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510 | Uint8ClampedBufferAttribute,
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511 | Uint8BufferAttribute,
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512 | Int8BufferAttribute,
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513 | BufferAttribute
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514 | };
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