Which property controls the transparency of a material?

Which property controls the transparency of a material?

• A. Diffuse Color
• B. Specular
• C. Glossiness
• D. Opacity

Answer: (D)

Opacity controls how transparent a material is. It determines how much light passes through the surface, so low opacity makes the material see‑through and high opacity makes it look solid. In 3D shading, you can drive opacity with a value or an opacity map to vary transparency across the surface. Diffuse color is simply the base color of the surface and does not affect transparency. Specular governs reflectivity and the brightness of highlights, while glossiness affects how sharp or blurred those highlights appear—neither changes how much light passes through the material.

Opacity controls how transparent a material is. It determines how much light passes through the surface, so low opacity makes the material see‑through and high opacity makes it look solid. In 3D shading, you can drive opacity with a value or an opacity map to vary transparency across the surface. Diffuse color is simply the base color of the surface and does not affect transparency. Specular governs reflectivity and the brightness of highlights, while glossiness affects how sharp or blurred those highlights appear—neither changes how much light passes through the material.