Someone is already doing something similar of your ideas, check it out

Yeah I will make most Blocks based on Cubes, there will likely not be any roundish things either. Makes not only everything easier to Model (since its just Textures on a Cube and Multiblocks), but also gives a few ways of optimizing Rendering by not having a ton of Models on Screen. Essentially it’s like I handle GT6 regarding Modelling, just a bunch of Cuboid Blocks with eventually animated Textures wherever it makes actual sense.

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