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BUILT-IN MATHEMATICA SYMBOL
Specularity
Specularity[s]
is a graphics directive which specifies that surfaces of 3D graphics objects which follow are to be taken to have specularity s.
Specularity[s, n]
uses specular exponent n.
Details
- Specularity is added to diffuse reflection and glow components to determine the final rendered color of a surface. »
- With specularity s, a surface is taken to specularly reflect a fraction s of light that falls on it from simulated light sources.
- The specular exponent n defines how sharply the intensity of reflected light falls off away from the mirror-reflection direction. »
- The default specular exponent is 1.5. Higher values lead to more sharply defined reflections, typical of shinier materials. Values above 10 produce definite "specular highlights".
- The intensity of simulated light at an angle
from the mirror-reflection direction is taken to be 
. When 
, the intensity is zero. - Specularity[s] takes the reflected light to have the same color as the incident light from light sources.
- Specularity[col] specifies that the RGB components of the incident light should be multiplied by the RGB components of col. »
- Specularity[s] is equivalent to Specularity[GrayLevel[s]]. »
- Specularity[] is equivalent to Specularity[0] or Specularity[Black], and specifies no specular reflection.
- Specularity directives do not affect specifications from Glow or RGBColor.
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