Autodesk 12812-051462-9011 User Guide 3 - Page 196

grow taller. As you adjust Anisotropy, the white curve changes to show how wide or narrow the highlight is. Blinn, Oren-Nayar-Blinn, and Phong Highlights Material Editor > Standard material > Blinn, Oren-Nayar-Blinn, or Phong Basic Parameters rollout > Specular Highlight group Material Editor > Raytrace material > Raytrace Basic Parameters rollout > Shading: Blinn, Oren-Nayar-Blinn, or Phong > Specular Highlight group The Blinn on page 5426, Oren-Nayar-Blinn on page 5429, and Phong on page 5430 shaders all have circular highlights and share the same highlight controls. Blinn and Oren-Nayar-Blinn highlights are somewhat softer and rounder than Phong highlights. NOTE For the Raytrace material on page 5490, the Specular Color component appears in the Specular Highlight group. Also, highlight controls that don't pertain to the current shader are labeled "N/A." Procedures To increase or decrease the strength of a highlight: ■ Change the value of Specular Level. The intensity of the Highlight curve and the highlight in the preview change. At 0% specular level, there is no highlight. At 100% specular level, the curve is at its maximum height with no overloading. At values greater than 100%, the curve is overloaded: it grows wider, and a wider area is at the maximum highlight intensity. The shape of the Highlight curve affects the blending between the specular and diffuse color regions of the material. The steeper the curve, the less blending there is and the sharper the edge of the specular highlight. To increase or decrease the size of a highlight: ■ Change the Glossiness value. The width of the Highlight curve and the highlight in the preview change. At 0% glossiness, the curve is at its maximum width. At 100% glossiness, the curve is extremely narrow. Standard Material | 5451