An object that manages the material’s diffuse response to lighting.
- iOS 8.0+
- macOS 10.8+
- Mac Catalyst 13.0+
- tvOS 9.0+
- watchOS 3.0+
Diffuse shading describes the amount and color of light reflected equally in all directions from each point on the material’s surface. The diffuse color of a pixel is independent of the point of view, so it can be thought of as a material’s “base” color or texture.
By default, the diffuse property’s
contents object is a white color. The figure below shows the effect of setting the diffuse property’s contents to a texture image on a material whose other properties have default contents.
lighting property determines the formula SceneKit uses to combine its diffuse color and other visual properties with lights and other contents in a scene to produce the final color for each rendered pixel in the rendered scene. For details, see Lighting Models.