In this tutorial, I will show you how to make a procedural stucco material using the shader nodes in Blender for your project.
Stucco
I will be using a wall model that I downloaded from Sketchfab
Add a Noise Texture node and connect it to the Base Color of the Principled Shader
Change the Scale of the Noise to a large number
Add a Color Ramp and connect the Factor of the Noise Texture to the Color Ramp
You can move the Color Stops to affect the darkness and lightness of the material
Add a Bump node and connect it to the Normal of the Principled Shader
Connect the Color Ramp to the Height of the Bump node
Adjust the Strength of the Bump node
Add a second Noise Texture node and untick Normalize
*NOTE: If you are using version 4.0 or before, use the Musgrave Texture node
Add a second Color Ramp and connect the Factor output of the second Noise Texture to the Color Ramp
Add a second Bump node and connect the second Color Ramp to the Height of the second Bump node
Connect the second Bump node to the Normal input of the first Bump node
Change the Scale of the second Noise Texture node
Move the color stops on the second Color Ramp to control the texture
Change the Strength of the second Bump node
To make dents, invert the second Bump node