Procedural Spiral Staircase using Geometry Nodes

Using Geometry Nodes in Blender, we can do procedural modeling. We  can model many things by changing the parameters. This tutorial series contains many parts. You can learn about Geometry Nodes in this tutorial series.

Make instances of stairs  using points in Geometry Nodes

In Geometry Nodes, we instance the objects. These instances will be used as stairs

Align instances towards center

Procedurally, we need to make adjust the orientation of the stairs so that they face the center.

Adding Count parameter for Stairs

In Geometry Nodes, we will add a Count parameter, so that we can specify the number of stairs.

Change width of stairs

Using Geometry Nodes, we will add a parameter, that will change the width of all the stairs at the same time. This is helpful in procedural modeling.

Add Handrail support in Staircase

Along with other things, we can add handrail support for our procedural modeling.

Make Handrail using Curve in Geometry Node

We will extrude a profile to make a handrail using Geometry Nodes.

Adjust the position of the handrail by moving its curve

The handrail is based on a spiral curve, we can move the curve to adjust its position.

Insufficient length of handrail

By adjusting the position of handrail, its length becomes insufficient on one end.

Increase length of handrail

In Geometry nodes, we can increase the length of handrail, by adding some Math nodes.

Duplicate the results for the other side of handrail.

Using Geometry Nodes, we have complete only one side of the handrail, the other side will be using the same technique.