1565 lines
22 KiB
JavaScript
1565 lines
22 KiB
JavaScript
import { BufferGeometry, Matrix4, Vector3, Vector4, BufferAttribute } from "three";
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class TeapotGeometry extends BufferGeometry {
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constructor(size, segments, bottom, lid, body, fitLid, blinn) {
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const teapotPatches = [
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/*rim*/
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0,
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1,
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2,
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3,
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4,
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5,
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6,
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7,
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8,
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9,
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10,
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11,
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12,
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13,
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14,
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15,
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3,
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16,
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17,
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18,
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7,
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19,
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20,
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21,
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11,
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22,
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23,
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24,
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15,
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25,
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26,
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27,
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18,
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28,
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29,
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30,
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21,
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31,
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32,
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33,
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24,
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34,
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35,
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36,
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27,
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37,
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38,
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39,
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30,
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40,
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41,
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0,
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33,
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42,
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43,
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4,
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36,
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44,
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45,
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8,
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39,
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46,
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47,
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12,
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/*body*/
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12,
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13,
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14,
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15,
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48,
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49,
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50,
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51,
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52,
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53,
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54,
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55,
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56,
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57,
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58,
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59,
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15,
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25,
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26,
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27,
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51,
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60,
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61,
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62,
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55,
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63,
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64,
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65,
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59,
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66,
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67,
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68,
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27,
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37,
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38,
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39,
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62,
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69,
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70,
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71,
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65,
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72,
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73,
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74,
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68,
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75,
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76,
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77,
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39,
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46,
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47,
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12,
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71,
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78,
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79,
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48,
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74,
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80,
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81,
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52,
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77,
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82,
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83,
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56,
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56,
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57,
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58,
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59,
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84,
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85,
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86,
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87,
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88,
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89,
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90,
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91,
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92,
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93,
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94,
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95,
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59,
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66,
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67,
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68,
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87,
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96,
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97,
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98,
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91,
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99,
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100,
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101,
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95,
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102,
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103,
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104,
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68,
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75,
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76,
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77,
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98,
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105,
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106,
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107,
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101,
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108,
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109,
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110,
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104,
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111,
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112,
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113,
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77,
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82,
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83,
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56,
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107,
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114,
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115,
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84,
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110,
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116,
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117,
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88,
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113,
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118,
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119,
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92,
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/*handle*/
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120,
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121,
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122,
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123,
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124,
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125,
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126,
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127,
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128,
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129,
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130,
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131,
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132,
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133,
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134,
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135,
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123,
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136,
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137,
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120,
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127,
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138,
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139,
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124,
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131,
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140,
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141,
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128,
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135,
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142,
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143,
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132,
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132,
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133,
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134,
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135,
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144,
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145,
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146,
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147,
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148,
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149,
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150,
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151,
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68,
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152,
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153,
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154,
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135,
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142,
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143,
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132,
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147,
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155,
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156,
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144,
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151,
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157,
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158,
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148,
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154,
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159,
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160,
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68,
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/*spout*/
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161,
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162,
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163,
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164,
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165,
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166,
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167,
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168,
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169,
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170,
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171,
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172,
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173,
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174,
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175,
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176,
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164,
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177,
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178,
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161,
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168,
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179,
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180,
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165,
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172,
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181,
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182,
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169,
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176,
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183,
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184,
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173,
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173,
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174,
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175,
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176,
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185,
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186,
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187,
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188,
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189,
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190,
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191,
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192,
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193,
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194,
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195,
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196,
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176,
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183,
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184,
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173,
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188,
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197,
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198,
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185,
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192,
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199,
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200,
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189,
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196,
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201,
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202,
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193,
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/*lid*/
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203,
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203,
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203,
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203,
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204,
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205,
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206,
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207,
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208,
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208,
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208,
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208,
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209,
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210,
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211,
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212,
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203,
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203,
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203,
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203,
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207,
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213,
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214,
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215,
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208,
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208,
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208,
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208,
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212,
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216,
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217,
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218,
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203,
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203,
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203,
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203,
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215,
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219,
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220,
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221,
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208,
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208,
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208,
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208,
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218,
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222,
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223,
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224,
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203,
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203,
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203,
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203,
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221,
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225,
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226,
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204,
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208,
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208,
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208,
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208,
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224,
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227,
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228,
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209,
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209,
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210,
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211,
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212,
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229,
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230,
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231,
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232,
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233,
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234,
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235,
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236,
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237,
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238,
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239,
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240,
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212,
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216,
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217,
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218,
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232,
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241,
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242,
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243,
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236,
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244,
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245,
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246,
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240,
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247,
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248,
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249,
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218,
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222,
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223,
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224,
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243,
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250,
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251,
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252,
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246,
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253,
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254,
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255,
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249,
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256,
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257,
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258,
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224,
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227,
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228,
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209,
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252,
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259,
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260,
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229,
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255,
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261,
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262,
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233,
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258,
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263,
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264,
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237,
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/*bottom*/
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265,
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265,
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265,
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265,
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266,
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267,
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268,
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269,
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270,
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271,
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272,
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273,
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92,
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|
119,
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|
118,
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113,
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|
265,
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265,
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265,
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265,
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269,
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274,
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275,
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276,
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273,
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277,
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278,
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279,
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|
113,
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112,
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|
111,
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|
104,
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|
265,
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|
265,
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|
265,
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|
265,
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|
276,
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280,
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281,
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282,
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279,
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283,
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284,
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285,
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104,
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|
103,
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|
102,
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|
95,
|
|
265,
|
|
265,
|
|
265,
|
|
265,
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|
282,
|
|
286,
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|
287,
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|
266,
|
|
285,
|
|
288,
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289,
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|
270,
|
|
95,
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|
94,
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|
93,
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|
92
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];
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const teapotVertices = [
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1.4,
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0,
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|
2.4,
|
|
1.4,
|
|
-0.784,
|
|
2.4,
|
|
0.784,
|
|
-1.4,
|
|
2.4,
|
|
0,
|
|
-1.4,
|
|
2.4,
|
|
1.3375,
|
|
0,
|
|
2.53125,
|
|
1.3375,
|
|
-0.749,
|
|
2.53125,
|
|
0.749,
|
|
-1.3375,
|
|
2.53125,
|
|
0,
|
|
-1.3375,
|
|
2.53125,
|
|
1.4375,
|
|
0,
|
|
2.53125,
|
|
1.4375,
|
|
-0.805,
|
|
2.53125,
|
|
0.805,
|
|
-1.4375,
|
|
2.53125,
|
|
0,
|
|
-1.4375,
|
|
2.53125,
|
|
1.5,
|
|
0,
|
|
2.4,
|
|
1.5,
|
|
-0.84,
|
|
2.4,
|
|
0.84,
|
|
-1.5,
|
|
2.4,
|
|
0,
|
|
-1.5,
|
|
2.4,
|
|
-0.784,
|
|
-1.4,
|
|
2.4,
|
|
-1.4,
|
|
-0.784,
|
|
2.4,
|
|
-1.4,
|
|
0,
|
|
2.4,
|
|
-0.749,
|
|
-1.3375,
|
|
2.53125,
|
|
-1.3375,
|
|
-0.749,
|
|
2.53125,
|
|
-1.3375,
|
|
0,
|
|
2.53125,
|
|
-0.805,
|
|
-1.4375,
|
|
2.53125,
|
|
-1.4375,
|
|
-0.805,
|
|
2.53125,
|
|
-1.4375,
|
|
0,
|
|
2.53125,
|
|
-0.84,
|
|
-1.5,
|
|
2.4,
|
|
-1.5,
|
|
-0.84,
|
|
2.4,
|
|
-1.5,
|
|
0,
|
|
2.4,
|
|
-1.4,
|
|
0.784,
|
|
2.4,
|
|
-0.784,
|
|
1.4,
|
|
2.4,
|
|
0,
|
|
1.4,
|
|
2.4,
|
|
-1.3375,
|
|
0.749,
|
|
2.53125,
|
|
-0.749,
|
|
1.3375,
|
|
2.53125,
|
|
0,
|
|
1.3375,
|
|
2.53125,
|
|
-1.4375,
|
|
0.805,
|
|
2.53125,
|
|
-0.805,
|
|
1.4375,
|
|
2.53125,
|
|
0,
|
|
1.4375,
|
|
2.53125,
|
|
-1.5,
|
|
0.84,
|
|
2.4,
|
|
-0.84,
|
|
1.5,
|
|
2.4,
|
|
0,
|
|
1.5,
|
|
2.4,
|
|
0.784,
|
|
1.4,
|
|
2.4,
|
|
1.4,
|
|
0.784,
|
|
2.4,
|
|
0.749,
|
|
1.3375,
|
|
2.53125,
|
|
1.3375,
|
|
0.749,
|
|
2.53125,
|
|
0.805,
|
|
1.4375,
|
|
2.53125,
|
|
1.4375,
|
|
0.805,
|
|
2.53125,
|
|
0.84,
|
|
1.5,
|
|
2.4,
|
|
1.5,
|
|
0.84,
|
|
2.4,
|
|
1.75,
|
|
0,
|
|
1.875,
|
|
1.75,
|
|
-0.98,
|
|
1.875,
|
|
0.98,
|
|
-1.75,
|
|
1.875,
|
|
0,
|
|
-1.75,
|
|
1.875,
|
|
2,
|
|
0,
|
|
1.35,
|
|
2,
|
|
-1.12,
|
|
1.35,
|
|
1.12,
|
|
-2,
|
|
1.35,
|
|
0,
|
|
-2,
|
|
1.35,
|
|
2,
|
|
0,
|
|
0.9,
|
|
2,
|
|
-1.12,
|
|
0.9,
|
|
1.12,
|
|
-2,
|
|
0.9,
|
|
0,
|
|
-2,
|
|
0.9,
|
|
-0.98,
|
|
-1.75,
|
|
1.875,
|
|
-1.75,
|
|
-0.98,
|
|
1.875,
|
|
-1.75,
|
|
0,
|
|
1.875,
|
|
-1.12,
|
|
-2,
|
|
1.35,
|
|
-2,
|
|
-1.12,
|
|
1.35,
|
|
-2,
|
|
0,
|
|
1.35,
|
|
-1.12,
|
|
-2,
|
|
0.9,
|
|
-2,
|
|
-1.12,
|
|
0.9,
|
|
-2,
|
|
0,
|
|
0.9,
|
|
-1.75,
|
|
0.98,
|
|
1.875,
|
|
-0.98,
|
|
1.75,
|
|
1.875,
|
|
0,
|
|
1.75,
|
|
1.875,
|
|
-2,
|
|
1.12,
|
|
1.35,
|
|
-1.12,
|
|
2,
|
|
1.35,
|
|
0,
|
|
2,
|
|
1.35,
|
|
-2,
|
|
1.12,
|
|
0.9,
|
|
-1.12,
|
|
2,
|
|
0.9,
|
|
0,
|
|
2,
|
|
0.9,
|
|
0.98,
|
|
1.75,
|
|
1.875,
|
|
1.75,
|
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0.98,
|
|
1.875,
|
|
1.12,
|
|
2,
|
|
1.35,
|
|
2,
|
|
1.12,
|
|
1.35,
|
|
1.12,
|
|
2,
|
|
0.9,
|
|
2,
|
|
1.12,
|
|
0.9,
|
|
2,
|
|
0,
|
|
0.45,
|
|
2,
|
|
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|
|
0.45,
|
|
1.12,
|
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-2,
|
|
0.45,
|
|
0,
|
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-2,
|
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0.45,
|
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1.5,
|
|
0,
|
|
0.225,
|
|
1.5,
|
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-0.84,
|
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0.225,
|
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0.84,
|
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|
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0.225,
|
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0,
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0.225,
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1.5,
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0,
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0.15,
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1.5,
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0.15,
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0.84,
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0,
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|
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0.15,
|
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|
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|
|
0.45,
|
|
-2,
|
|
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|
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0.45,
|
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|
0,
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0.45,
|
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|
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0.225,
|
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|
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0.225,
|
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|
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|
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|
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|
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|
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|
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|
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0.225,
|
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2.25,
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0,
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0,
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0.9375,
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0.9,
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0.6,
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0,
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0.6,
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-3,
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0.3,
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1.35,
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|
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0.3,
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1.575,
|
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0.3,
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0.3,
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1.125,
|
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0.3,
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0.6,
|
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-2,
|
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0.3,
|
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0.9,
|
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1.7,
|
|
0,
|
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1.425,
|
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1.7,
|
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|
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1.425,
|
|
1.7,
|
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|
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0.6,
|
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1.7,
|
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0,
|
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0.6,
|
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2.6,
|
|
0,
|
|
1.425,
|
|
2.6,
|
|
-0.66,
|
|
1.425,
|
|
3.1,
|
|
-0.66,
|
|
0.825,
|
|
3.1,
|
|
0,
|
|
0.825,
|
|
2.3,
|
|
0,
|
|
2.1,
|
|
2.3,
|
|
-0.25,
|
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2.1,
|
|
2.4,
|
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-0.25,
|
|
2.025,
|
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2.4,
|
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0,
|
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2.025,
|
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2.7,
|
|
0,
|
|
2.4,
|
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2.7,
|
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-0.25,
|
|
2.4,
|
|
3.3,
|
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|
|
2.4,
|
|
3.3,
|
|
0,
|
|
2.4,
|
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1.7,
|
|
0.66,
|
|
0.6,
|
|
1.7,
|
|
0.66,
|
|
1.425,
|
|
3.1,
|
|
0.66,
|
|
0.825,
|
|
2.6,
|
|
0.66,
|
|
1.425,
|
|
2.4,
|
|
0.25,
|
|
2.025,
|
|
2.3,
|
|
0.25,
|
|
2.1,
|
|
3.3,
|
|
0.25,
|
|
2.4,
|
|
2.7,
|
|
0.25,
|
|
2.4,
|
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2.8,
|
|
0,
|
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2.475,
|
|
2.8,
|
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|
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2.475,
|
|
3.525,
|
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-0.25,
|
|
2.49375,
|
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3.525,
|
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0,
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2.49375,
|
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2.9,
|
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0,
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2.475,
|
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2.9,
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-0.15,
|
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2.475,
|
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3.45,
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|
2.5125,
|
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3.45,
|
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0,
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2.5125,
|
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2.8,
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0,
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2.4,
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2.8,
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-0.15,
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2.4,
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3.2,
|
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2.4,
|
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3.2,
|
|
0,
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|
2.4,
|
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3.525,
|
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0.25,
|
|
2.49375,
|
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2.8,
|
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0.25,
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2.475,
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3.45,
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0.15,
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|
2.5125,
|
|
2.9,
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0.15,
|
|
2.475,
|
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3.2,
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0.15,
|
|
2.4,
|
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2.8,
|
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0.15,
|
|
2.4,
|
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0,
|
|
0,
|
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3.15,
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0.8,
|
|
0,
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3.15,
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0.8,
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-0.45,
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3.15,
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0.45,
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3.15,
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0,
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-0.8,
|
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3.15,
|
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0,
|
|
0,
|
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2.85,
|
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0.2,
|
|
0,
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|
2.7,
|
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0.2,
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-0.112,
|
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2.7,
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0.112,
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2.7,
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0,
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2.7,
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3.15,
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0,
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3.15,
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2.7,
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2.7,
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0,
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0.45,
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3.15,
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0.8,
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3.15,
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0,
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|
0.8,
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3.15,
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-0.2,
|
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0.112,
|
|
2.7,
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|
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0.2,
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2.7,
|
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0,
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|
0.2,
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2.7,
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0.45,
|
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0.8,
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3.15,
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0.8,
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0.45,
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3.15,
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0.112,
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0.2,
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|
2.7,
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|
0.2,
|
|
0.112,
|
|
2.7,
|
|
0.4,
|
|
0,
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2.55,
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0.4,
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-0.224,
|
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2.55,
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0.224,
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-0.4,
|
|
2.55,
|
|
0,
|
|
-0.4,
|
|
2.55,
|
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1.3,
|
|
0,
|
|
2.55,
|
|
1.3,
|
|
-0.728,
|
|
2.55,
|
|
0.728,
|
|
-1.3,
|
|
2.55,
|
|
0,
|
|
-1.3,
|
|
2.55,
|
|
1.3,
|
|
0,
|
|
2.4,
|
|
1.3,
|
|
-0.728,
|
|
2.4,
|
|
0.728,
|
|
-1.3,
|
|
2.4,
|
|
0,
|
|
-1.3,
|
|
2.4,
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-0.224,
|
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-0.4,
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|
2.55,
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-0.4,
|
|
-0.224,
|
|
2.55,
|
|
-0.4,
|
|
0,
|
|
2.55,
|
|
-0.728,
|
|
-1.3,
|
|
2.55,
|
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-1.3,
|
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-0.728,
|
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2.55,
|
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-1.3,
|
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0,
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2.55,
|
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-0.728,
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-1.3,
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2.4,
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-1.3,
|
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-0.728,
|
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2.4,
|
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-1.3,
|
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0,
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0.224,
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2.55,
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0.4,
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2.55,
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0,
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2.55,
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-1.3,
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0.728,
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2.55,
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2.55,
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0,
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1.3,
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2.55,
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-1.3,
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0.728,
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|
2.4,
|
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1.3,
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0,
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1.3,
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2.4,
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0.224,
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0.4,
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2.55,
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0.4,
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2.55,
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0.728,
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1.3,
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2.55,
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1.3,
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0.728,
|
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2.55,
|
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0.728,
|
|
1.3,
|
|
2.4,
|
|
1.3,
|
|
0.728,
|
|
2.4,
|
|
0,
|
|
0,
|
|
0,
|
|
1.425,
|
|
0,
|
|
0,
|
|
1.425,
|
|
0.798,
|
|
0,
|
|
0.798,
|
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1.425,
|
|
0,
|
|
0,
|
|
1.425,
|
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0,
|
|
1.5,
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|
0,
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0.075,
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0.84,
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0.075,
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0.84,
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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|
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0,
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|
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|
|
0,
|
|
1.425,
|
|
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|
|
0,
|
|
0.84,
|
|
-1.5,
|
|
0.075,
|
|
1.5,
|
|
-0.84,
|
|
0.075
|
|
];
|
|
super();
|
|
size = size || 50;
|
|
segments = segments !== void 0 ? Math.max(2, Math.floor(segments) || 10) : 10;
|
|
bottom = bottom === void 0 ? true : bottom;
|
|
lid = lid === void 0 ? true : lid;
|
|
body = body === void 0 ? true : body;
|
|
fitLid = fitLid === void 0 ? true : fitLid;
|
|
const blinnScale = 1.3;
|
|
blinn = blinn === void 0 ? true : blinn;
|
|
const maxHeight = 3.15 * (blinn ? 1 : blinnScale);
|
|
const maxHeight2 = maxHeight / 2;
|
|
const trueSize = size / maxHeight2;
|
|
let numTriangles = bottom ? (8 * segments - 4) * segments : 0;
|
|
numTriangles += lid ? (16 * segments - 4) * segments : 0;
|
|
numTriangles += body ? 40 * segments * segments : 0;
|
|
const indices = new Uint32Array(numTriangles * 3);
|
|
let numVertices = bottom ? 4 : 0;
|
|
numVertices += lid ? 8 : 0;
|
|
numVertices += body ? 20 : 0;
|
|
numVertices *= (segments + 1) * (segments + 1);
|
|
const vertices = new Float32Array(numVertices * 3);
|
|
const normals = new Float32Array(numVertices * 3);
|
|
const uvs = new Float32Array(numVertices * 2);
|
|
const ms = new Matrix4();
|
|
ms.set(-1, 3, -3, 1, 3, -6, 3, 0, -3, 3, 0, 0, 1, 0, 0, 0);
|
|
const g = [];
|
|
let i, r, c;
|
|
const sp = [];
|
|
const tp = [];
|
|
const dsp = [];
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const dtp = [];
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const mgm = [];
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const vert = [];
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const sdir = [];
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const tdir = [];
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const norm = new Vector3();
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let tcoord;
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let sstep, tstep;
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let vertPerRow;
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let s, t, sval, tval, p;
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let dsval = 0;
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let dtval = 0;
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const normOut = new Vector3();
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let v1, v2, v3, v4;
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const gmx = new Matrix4();
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const tmtx = new Matrix4();
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const vsp = new Vector4();
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const vtp = new Vector4();
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const vdsp = new Vector4();
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const vdtp = new Vector4();
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const vsdir = new Vector3();
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const vtdir = new Vector3();
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const mst = ms.clone();
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mst.transpose();
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const notDegenerate = (vtx1, vtx2, vtx3) => !(vertices[vtx1 * 3] === vertices[vtx2 * 3] && vertices[vtx1 * 3 + 1] === vertices[vtx2 * 3 + 1] && vertices[vtx1 * 3 + 2] === vertices[vtx2 * 3 + 2] || vertices[vtx1 * 3] === vertices[vtx3 * 3] && vertices[vtx1 * 3 + 1] === vertices[vtx3 * 3 + 1] && vertices[vtx1 * 3 + 2] === vertices[vtx3 * 3 + 2] || vertices[vtx2 * 3] === vertices[vtx3 * 3] && vertices[vtx2 * 3 + 1] === vertices[vtx3 * 3 + 1] && vertices[vtx2 * 3 + 2] === vertices[vtx3 * 3 + 2]);
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for (i = 0; i < 3; i++) {
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mgm[i] = new Matrix4();
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}
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const minPatches = body ? 0 : 20;
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const maxPatches = bottom ? 32 : 28;
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vertPerRow = segments + 1;
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let surfCount = 0;
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let vertCount = 0;
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let normCount = 0;
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let uvCount = 0;
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let indexCount = 0;
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for (let surf = minPatches; surf < maxPatches; surf++) {
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if (lid || surf < 20 || surf >= 28) {
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for (i = 0; i < 3; i++) {
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for (r = 0; r < 4; r++) {
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for (c = 0; c < 4; c++) {
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g[c * 4 + r] = teapotVertices[teapotPatches[surf * 16 + r * 4 + c] * 3 + i];
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if (fitLid && surf >= 20 && surf < 28 && i !== 2) {
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g[c * 4 + r] *= 1.077;
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}
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if (!blinn && i === 2) {
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g[c * 4 + r] *= blinnScale;
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}
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}
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}
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gmx.set(g[0], g[1], g[2], g[3], g[4], g[5], g[6], g[7], g[8], g[9], g[10], g[11], g[12], g[13], g[14], g[15]);
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tmtx.multiplyMatrices(gmx, ms);
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mgm[i].multiplyMatrices(mst, tmtx);
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}
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for (sstep = 0; sstep <= segments; sstep++) {
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s = sstep / segments;
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for (tstep = 0; tstep <= segments; tstep++) {
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t = tstep / segments;
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for (p = 4, sval = tval = 1; p--; ) {
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sp[p] = sval;
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tp[p] = tval;
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sval *= s;
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tval *= t;
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if (p === 3) {
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dsp[p] = dtp[p] = 0;
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dsval = dtval = 1;
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} else {
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dsp[p] = dsval * (3 - p);
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dtp[p] = dtval * (3 - p);
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dsval *= s;
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dtval *= t;
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}
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}
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vsp.fromArray(sp);
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vtp.fromArray(tp);
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vdsp.fromArray(dsp);
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vdtp.fromArray(dtp);
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for (i = 0; i < 3; i++) {
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tcoord = vsp.clone();
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|
tcoord.applyMatrix4(mgm[i]);
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|
vert[i] = tcoord.dot(vtp);
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|
tcoord = vdsp.clone();
|
|
tcoord.applyMatrix4(mgm[i]);
|
|
sdir[i] = tcoord.dot(vtp);
|
|
tcoord = vsp.clone();
|
|
tcoord.applyMatrix4(mgm[i]);
|
|
tdir[i] = tcoord.dot(vdtp);
|
|
}
|
|
vsdir.fromArray(sdir);
|
|
vtdir.fromArray(tdir);
|
|
norm.crossVectors(vtdir, vsdir);
|
|
norm.normalize();
|
|
if (vert[0] === 0 && vert[1] === 0) {
|
|
normOut.set(0, vert[2] > maxHeight2 ? 1 : -1, 0);
|
|
} else {
|
|
normOut.set(norm.x, norm.z, -norm.y);
|
|
}
|
|
vertices[vertCount++] = trueSize * vert[0];
|
|
vertices[vertCount++] = trueSize * (vert[2] - maxHeight2);
|
|
vertices[vertCount++] = -trueSize * vert[1];
|
|
normals[normCount++] = normOut.x;
|
|
normals[normCount++] = normOut.y;
|
|
normals[normCount++] = normOut.z;
|
|
uvs[uvCount++] = 1 - t;
|
|
uvs[uvCount++] = 1 - s;
|
|
}
|
|
}
|
|
for (sstep = 0; sstep < segments; sstep++) {
|
|
for (tstep = 0; tstep < segments; tstep++) {
|
|
v1 = surfCount * vertPerRow * vertPerRow + sstep * vertPerRow + tstep;
|
|
v2 = v1 + 1;
|
|
v3 = v2 + vertPerRow;
|
|
v4 = v1 + vertPerRow;
|
|
if (notDegenerate(v1, v2, v3)) {
|
|
indices[indexCount++] = v1;
|
|
indices[indexCount++] = v2;
|
|
indices[indexCount++] = v3;
|
|
}
|
|
if (notDegenerate(v1, v3, v4)) {
|
|
indices[indexCount++] = v1;
|
|
indices[indexCount++] = v3;
|
|
indices[indexCount++] = v4;
|
|
}
|
|
}
|
|
}
|
|
surfCount++;
|
|
}
|
|
}
|
|
this.setIndex(new BufferAttribute(indices, 1));
|
|
this.setAttribute("position", new BufferAttribute(vertices, 3));
|
|
this.setAttribute("normal", new BufferAttribute(normals, 3));
|
|
this.setAttribute("uv", new BufferAttribute(uvs, 2));
|
|
this.computeBoundingSphere();
|
|
}
|
|
}
|
|
export {
|
|
TeapotGeometry
|
|
};
|
|
//# sourceMappingURL=TeapotGeometry.js.map
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