Chapter 4: Creating Textures

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Maya 8 at a Glance

• Chapter 4 Creating Textures

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Shaders

• Lambert No highlights

• Phong Distinct specular highlights

• Phong E Greater controls for softer highlights

• Blinn Versatile and soft highlights

• Anisotropic Directional highlights, such as
  hair or metal

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Shaders

• Ramp Control color changes across the shader

• Layered Allows multiple layers to be stacked
  and combined

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Common Attributes of Shaders

• Color
• Transparency
• Ambient Color
• Incandescence
• Bump Mapping
• Diffuse
• Translucence

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The Hypershade

• The Hypershade is the place where you create and
  edit shaders

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Textures

• Textures are images that can be mapped to almost
  any surface material
• They can be bitmap images or can be created
  procedurally
• Bitmap textures can be created in an external
  program, such as Photoshop, or inside Maya using
  3D Paint
• Procedural textures are created using
  mathematical formulae internal to Maya

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Procedural Textures

• 2D Procedural Textures
• Bulge
• Checker
• Cloth
• Fractal
• Grid
• Noise
• Ramp

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Procedural Textures

• 3D Procedural Textures
• Brownian
• Cloud
• Leather
• Granite
• Marble
• Rock
• Solid Fractal
• Wood

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Bump and Displacement

• Bump Maps
• Give a surface a sense of roughness and depth
• Only affects the way light interacts with the
  surface
• Does not modify the geometry, so edges are still
  smoth
• Displacement Maps
• Actually changes the surface of the geometry
• Requires more processing and rendering power

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UVs and Texture Placement

• UV mapping overlays a texture onto a flattened
  model (done in the UV Texture Editor)

• 2D textures are mapped using a place2dTexture
  node
• 3D textures are mapped using a place3DTexture
  node

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Photoshop Integration

• Maya supports importing and exporting the
  photoshop PSD format
• Both Maya and Photoshop can use layers to
  combine multiple bitmaps into a single file
• Shading networks are created in the Hypershade
  based on the layers of attributes in the PSD file

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