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- /**
- * Determines if the fragment is back facing
- *
- * @name czm_backFacing
- * @glslFunction
- *
- * @returns {bool} <code>true</code> if the fragment is back facing; otherwise, <code>false</code>.
- */
- bool czm_backFacing()
- {
- // !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.
- return gl_FrontFacing == false;
- }
|
