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Yes, no texture, it's just a test, to figure it works! i don't try more on this model, but i used convert .stl model and for fun try on beam ^^...
it works: (pyramids in solidworks, export in .stl and convert in .dae)
update
i'm in WIP for this map: rapa nui island, but my problem, i'm a noob in modeling, and do moai is my end. I ask you dev-friends to help me in this...
WIP on rockwood [ATTACH] ps: my 1st map editing sorry for low graphics.