What property controls how visible an object is, where 0 is invisible and 100 is totally solid?

What property controls how visible an object is, where 0 is invisible and 100 is totally solid?

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

Answer: (B)

Opacity is the setting that directly controls how visible or see-through a material is. It determines the alpha of the surface, so 0 makes the object invisible, and 100 makes it fully solid. The other properties don't change transparency: diffuse color sets the base color under diffuse lighting, not how much light passes through; specular affects the size and brightness of the shiny highlight, and glossiness influences how sharp that highlight looks by describing surface roughness. So opacity is the best fit for controlling visibility.

Opacity is the setting that directly controls how visible or see-through a material is. It determines the alpha of the surface, so 0 makes the object invisible, and 100 makes it fully solid. The other properties don't change transparency: diffuse color sets the base color under diffuse lighting, not how much light passes through; specular affects the size and brightness of the shiny highlight, and glossiness influences how sharp that highlight looks by describing surface roughness. So opacity is the best fit for controlling visibility.