1 | import { isObject } from './is-object';
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2 | import { isTypedArray } from './is-typedarray';
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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 | export function extractUniforms(uniforms) {
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10 | var extractedUniforms = {};
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11 | Object.keys(uniforms).forEach(function (uniformName) {
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12 | extractUniformsRecursively(uniformName, uniforms[uniformName], extractedUniforms, '');
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13 | });
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14 | return extractedUniforms;
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15 | }
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16 |
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17 | function extractUniformsRecursively(uniformName, uniformValue, uniforms, prefix) {
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18 | if (uniformValue === null || typeof uniformValue === 'number' ||
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19 | typeof uniformValue === 'boolean' ||
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20 | Array.isArray(uniformValue) && typeof uniformValue[0] === 'number' ||
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21 | isTypedArray(uniformValue) ||
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22 |
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23 | uniformValue === '' ||
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24 | uniformValue.resize !== undefined) {
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25 | uniforms["".concat(prefix && prefix + '.').concat(uniformName)] = uniformValue;
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26 | return;
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27 | }
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28 |
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29 |
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30 | if (isObject(uniformValue)) {
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31 | Object.keys(uniformValue).forEach(function (childName) {
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32 | extractUniformsRecursively(childName,
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33 | uniformValue[childName], uniforms, "".concat(prefix && prefix + '.').concat(uniformName));
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34 | });
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35 | }
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36 |
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37 |
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38 | if (Array.isArray(uniformValue)) {
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39 |
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40 | uniformValue.forEach(function (child, idx) {
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41 | Object.keys(child).forEach(function (childName) {
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42 | extractUniformsRecursively(childName,
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43 | child[childName], uniforms, "".concat(prefix && prefix + '.').concat(uniformName, "[").concat(idx, "]"));
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44 | });
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45 | });
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46 | }
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47 | }
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48 |
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