The model is made for anti-aliasing, the stack is not collapsed.
Anti-aliasing modifier is on (display in the viewport - 0 iterations, in the render- 3 iterations)
-max 2015 corona
-obj (it is necessary to throw MeshSmooth (2-3 iterations) on some objects)
Name: bouqute05-pampass
Units: Centimeters
Polys: 768,288
Verts:1,342,506
XForm:Yes
Box Trick: Yes
Render: corona+vray
Formats: 3Ds Max 2015 +obj+fbx
other products: https://www.cgtrader.com/mozhdehparizi