Two Sided Material Node - V-Ray for Cinema 4D - Global Site
mesh - Is this is double-sided plane? - Blender Stack Exchange
Blender Sushi: RENDER / Wired & Double-Sided Useful Material Tricks
Is it better to have models that have double faces or is it better to have a two-sided material instead? - Pipeline & Plugins - Epic Developer Community Forums
How to make a two-sided shader material in Blender 2.8 EEVEE and Cycles - BlenderNation
Two-sided Meshes, Normal & Shininess – Blender Knowledgebase
double sided" mesh option in 2.8 - Materials and Textures - Blender Artists Community