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- //This file is automatically rebuilt by the Cesium build process.
- export default "/**\n\
- * @private\n\
- */\n\
- float czm_alphaWeight(float a)\n\
- {\n\
- float z = (gl_FragCoord.z - czm_viewportTransformation[3][2]) / czm_viewportTransformation[2][2];\n\
- \n\
- // See Weighted Blended Order-Independent Transparency for examples of different weighting functions:\n\
- // http://jcgt.org/published/0002/02/09/\n\
- return pow(a + 0.01, 4.0) + max(1e-2, min(3.0 * 1e3, 0.003 / (1e-5 + pow(abs(z) / 200.0, 4.0))));\n\
- }\n\
- ";
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