The model is made for smoothing, the stack is not collapsed. The anti-aliasing modifier is enabled (display in the viewport - 0 iterations, on the render - 1-2 iterations) Polys: 19,797 Verts: 19,916 -max 2015 corona -fbx (you need to apply MeshSmooth (1-2 iterations) to some objects) -obj (you need to apply MeshSmooth (1-2 iterations) to some objects) -mtl -textures -material library For Corona render, it is recommended to install version no lower than 1.5, since the glossiness of the materials is adjusted