In the third installment of the tutorial series, Gottfried Hofmann concludes the exploration of simulation nodes by focusing on shading, rendering, and building the final asset. The video covers how to set up shading for the particle system, emphasizing the importance of using Cycles for rendering due to Blender's limited support for point cloud rendering. He demonstrates how to create a shader that changes particle colors based on their age and how to add transparency for a fading effect. The tutorial also touches on rendering optimizations to avoid artifacts and improve the overall look. Finally, the presenter shows how to create an asset from the particle system, allowing users to easily incorporate it into their own Blender projects.