What does raising and lowering the specular value do?

• A. Lowering - makes object less shiny; Raising - makes object shinier
• B. Lowering - increases metallicity; Raising - decreases metalness
• C. Lowering - changes color; Raising - changes ambient occlusion
• D. Lowering - increases texture resolution; Raising - decreases texture resolution

Answer: (A)

Specular value controls how strong the reflective highlights on a surface are. Lowering it makes the object look less shiny—highlights become faint and diffused. Raising it increases shininess—highlights become brighter and more pronounced, giving a polished or mirror-like look. This describes how light reflects off the material in the specular term of the shader. Other options describe aspects like color, ambient occlusion, metallicity, or texture resolution, which don’t describe the effect of changing the specular value.