Scene/CullFace.js 16 Determines which triangles, if any, are culled. Members staticconstantCesium.CullFace.BACK : Number Scene/CullFace.js 31 Back-facing triangles are culled. staticconstantCesium.CullFace.FRONT : Number Scene/CullFace.js 23 Front-facing triangles are culled. staticconstantCesium.CullFace.FRONT_AND_BACK : Number Scene/CullFace.js 39 Both front-facing and back-facing triangles are culled.