Class representing a square mesh. Class representing a square [PrimitiveMesh]. This flat mesh does not have a thickness. By default, this mesh is aligned on the X and Y axes; this default rotation is more suited for use with billboarded materials. Unlike [PlaneMesh], this mesh doesn't provide subdivision options. https://godotengine.org/asset-library/asset/127 https://godotengine.org/asset-library/asset/129 Offset of the generated Quad. Useful for particles. Size on the X and Y axes.