Babylon.js/src/Shaders/ShadersInclude/clipPlaneFragmentDeclaration.fx

#ifdef CLIPPLANE
	varying float fClipDistance;
#endif

#ifdef CLIPPLANE2
	varying float fClipDistance2;
#endif

#ifdef CLIPPLANE3
	varying float fClipDistance3;
#endif

#ifdef CLIPPLANE4
	varying float fClipDistance4;
#endif