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"Iron Horse" Added on: Thu Dec 28 2000 |
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Materials and Maps
This material with some modifications (depend on the objects) was used for every metal object in the scene. In my opinion the good-looking metal is the most capricious material for a 3d artist.
I achieve the metal effect with a blend material, where the mask is the texture, but with some tune in the 'mixing curve'. The reason is to show in the darkest parts of the map rust, grease, or just some dirt.
In 'Material 1:' I used Metal shader, and the texture was used in the diffuse color(100%),
specular level (100%), glossiness (50%), bump (10%). The reflection is with 'Mask' type. For the mask I used falloff with Perpendicular / Parallel type and 'Viewing Direction' falloff direction, where the outer area of the object is white.
For the 'Map' in the mask type I used standard ray trace reflection material. This combination gives a natural look to the reflections.
In 'Material 2' I used different materials depend on the objects. There are three main dirt materials:
Figure.1: Rust - simple metal shader with diffuse color of orange - dark brown noise with ordinary noise bump map.
Figure.2: Grease - dark gray Blinn shader with a negative bump map with the texture.
Figure.3: Limestone precipitation - light noise with a negative bump map with the texture.
  
Figure.1, Figure.2, Figure.3
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