### Description

!!! note
    This original source code for this example is [here](https://gitlab.kitware.com/vtk/vtk/blob/73465690278158b9e89661cd6aed26bead781378/Examples/Rendering/Cxx/DiffuseSpheres.cxx).

!!! info
    Similar examples setting the ambient and specular properties are:
    See [AmbientSpheres.cxx](../AmbientSpheres), [AmbientSpheres.py](../../../Python/Rendering/AmbientSpheres), [AmbientSpheres.java](../../../Java/Rendering/AmbientSpheres) and [SpecularSpheres.cxx](../SpecularSpheres), [SpecularSpheres.py](../../../Python/Rendering/SpecularSpheres).
