Can someone help me design a creative façade or envelope for this type of building?
I’m looking for an innovative wrapping or skin concept that can be developed parametrically, using your own techniques or ideas, to enhance the architectural expression of the structure.
Sorry, this isn’t a Do My Homework service! It’s a reciprocal arrangement: You bring an interesting problem, we get interested enough to help
Search for some youtube tutorials, try and copy them, experiment, come up with something. Even if it’s bad or broken, at least show some effort so we can tell you where you went wrong.
Because Polygon is just like Offset Curve Loose. You are offsetting the control points of the polygon, not its sides. With negative offset values, you have effectively flipped the direction of the curve while the fillet continues to try to round off the figure in the same clock-wise direction: