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forked from Rowland/EG
EG/Cesium-1.132/packages/engine/Source/Shaders/Builtin/Functions/backFacing.js
2025-08-25 17:48:13 +08:00

16 lines
537 B
JavaScript

//This file is automatically rebuilt by the Cesium build process.
export default "/**\n\
* Determines if the fragment is back facing\n\
*\n\
* @name czm_backFacing\n\
* @glslFunction \n\
* \n\
* @returns {bool} <code>true</code> if the fragment is back facing; otherwise, <code>false</code>.\n\
*/\n\
bool czm_backFacing()\n\
{\n\
// !gl_FrontFacing doesn't work as expected on Mac/Intel so use the more verbose form instead. See https://github.com/CesiumGS/cesium/pull/8494.\n\
return gl_FrontFacing == false;\n\
}\n\
";