Some mesh primitives created using geometry nodes use loops to create vertices and accumulates positions/angles in FP variables. This allows rounding errors to accumulate and can introduce significant errors. To minimize changes from original implementation, variables allowing errors to accumulate are replaced by: delta * index. Affected Mesh Primitives nodes are Line, Grid, Cylinder, Circle, Cone, and UV-Sphere. Differential Revision: https://developer.blender.org/D12136