Waterfall_13
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The smoothness depends on the number of polygons exported.
A small number of polygons can be masked with an additional normal map texture or by playing around with the game engine's materials. Or, you can increase the number of triangles.
The original had 34k triangles.
I retopologized it to 3.4k.
The issue isn't the number of triangles; it's that the shading is flat when it should be smooth. In the game, all models are relatively low-poly, but that doesn't make them look square. There's smoothing applied. I also have smoothing, but for some reason, it disappeared. I suspect it's Maya's fault. It seems that during the process of processing the model, the smoothing was lost. Maybe it needs to be duplicated in Maya; I don't know.
