Demonstrating how to use a grayscale map to alter geometry in the viewport, effectively acting as a displacement map during rendering.

• The video focuses on using a grayscale map to change the geometry of a grid model in the viewport.
• To achieve this, the author suggests increasing the model’s point count and resolution for better definition.
• The grayscale map is used as a transfer attribute for individual points, with black representing peaks.
• VEX operators and the wrangle node are used to manipulate the geometry.
• The video explains how to adjust the displacement along the normals of the geometry.
• The colour attribute of the map is used to control the displacement amount.
• Inverting the grayscale map and scaling it is demonstrated to achieve the desired effects.
• The video also shows how to achieve the same results with code, making use of the “add” and “ch” functions.
• This technique can be used as a modelling tool for deforming mesh in Houdini.