love.graphics.getMeshCullMode
Gets whether back-facing triangles in a Mesh are culled.

Mesh face culling is designed for use with low level custom hardware-accelerated 3D rendering via custom vertex attributes on Meshes, custom vertex shaders, and depth testing with a depth buffer.
mode = love.graphics.getMeshCullMode()
mode CullMode The Mesh face culling mode in use (whether to render everything, cull back-facing triangles, or cull front-facing triangles).