Phong
SHADER TYPE: Phong
Phong is a reflectivity type that enables Phong-type environment effects to the material. In Phong reflection, the reflections are greatest on the specular side of the surface, opposite to the viewing direction. This reflectivity type is especially suitable for shiny, polished materials, such as ceramics and glass.
| Parameter: | Explanation: | Default value: | Possible values and comments: |
| Ambient Factor | Reflectivity factor of ambient light | 1 | |
| Diffuse Factor | Reflectivity factor of diffuse light | 0.75 | |
| Specular Factor | Specular factor | 0.5 | |
| Exponent | A factor affecting the sharpness of the reflection | 10 | At small values, the reflection is sharper. High values like 10 make the surface less mirror-like. |
| Specular Colour | Colour of the reflection | (255,255,255) | All RGB values |
An example with its default values:
Object Colour: (0,0,170)
Reflectivity: Matte 1 1
Background: Clouds 10 (120,190,255) (200,255,255) 3
Ambient Light: 0.55 (255,250,245) TRUE
Distant Light: 0.65 (255,255,255) (19610,-6767,17933) (0,0,0) TRUE 2048 9 1 (255,255,255) TRUE
Ambient Factor: 1 Diffuse Factor: 0.75 Specular Factor: 0.5 Exponent: 10 Specular Colour: (255,255,255) |
Ambient Factor: 1.2 Diffuse Factor: 0.75 Specular Factor: 0.5 Exponent: 10 Specular Colour: (255,255,255) |
Ambient Factor: 1.2 Diffuse Factor: 0.95 Specular Factor: 0.5 Exponent: 10 Specular Colour: (255,255,255) |
Ambient Factor: 1.2 Diffuse Factor: 0.95 Specular Factor: 0.8 Exponent: 10 Specular Colour: (255,255,255) |
Ambient Factor: 1.2 Diffuse Factor: 0.95 Specular Factor: 0.8 Exponent: 1 Specular Colour: (255,255,255) |
Ambient Factor: 1.2 Diffuse Factor: 0.95 Specular Factor: 0.8 Exponent: 1 Specular Colour: (255,0,0) |
Ambient Factor: 1 Diffuse Factor: 1 Specular Factor: 0.7 Exponent: 1 Specular Colour: (255,255,255) |
Colour: Plain Colour (127,173,133) Reflectivity: Phong Ambient Factor: 1 Diffuse Factor: 1 Specular Factor: 0.7 Exponent: 1 Specular Colour: (255,255,255) |