In 3D design, diffuse, specular, and ambient materials differ primarily in light reflection behavior, directly shaping a surface’s visual finish.
- Diffuse materials: Scatter light evenly in all directions, creating a matte, non-shiny appearance (e.g., cardboard, fabric). - Specular materials: Reflect light in focused, directional beams, producing bright highlights (e.g., polished steel, glass). - Ambient materials: Simulate indirect, non-directional light, adding baseline brightness to surfaces even without direct illumination.
When adjusting materials, align with the desired effect: matte surfaces use diffuse, shiny ones rely on specular, and consistent base glow depends on ambient properties.