Syntax: Shape
Recall that Shape nodes describe:
- appearance - color and texture
- geometry - form, or structure
XML Encoding
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<Shape> <!-- appearance ... --> <!-- geometry ... --> </Shape> |
Classic Encoding
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Shape { appearance ... geometry ... } |
Syntax: Appearance
An Appearance node describes overall shape appearance
- material properties - color, transparency, etc.
XML Encoding
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<Shape> <Appearance> <!-- material ... --> </Appearance> <!-- geometry ... --> </Shape> |
Classic Encoding
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Shape { appearance Appearance { material ... } geometry ... } |
Syntax: Material
A Material node controls shape material attributes
- diffuseColor - main shading color
- emissiveColor - glowing color
- transparency - opaque or not
XML Encoding
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<Shape> <Appearance> <Material diffuseColor='0.8 0.8 0.8' emissiveColor='0.0 0.0 0.0' transparency='0.0'/> </Appearance> <!-- geometry ... --> </Shape> |
Classic Encoding
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Shape { appearance Appearance { material Material { diffuseColor 0.8 0.8 0.8 emissiveColor 0.0 0.0 0.0 transparency 0.0 } } geometry ... } |
Syntax: Material
A Material node also controls shape shininess
- specularColor - highlightcolor
- shininess - highlightsize
- ambientIntensity - ambient lighting effects
A sample world using appearance
XML Encoding
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<Shape> <Appearance> <Material diffuseColor='0.2 0.2 0.2' emissiveColor='0.0 0.0 0.8' transparency='0.25'/> </Appearance> <Box size='2.0 4.0 0.3'/> </Shape> <!-- ... --> |
Classic Encoding
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Shape { appearance Appearance { material Material { diffuseColor 0.2 0.2 0.2 emissiveColor 0.0 0.0 0.8 transparency 0.25 } } geometry Box { size 2.0 4.0 0.3 } } ... |
Summary
The Appearance node controls overall shape appearance
The Material node controls overall material properties including:
- Shading color
- Glow color
- Transparency
- Shininess
- Ambient intensity