Image_3D_Driver | --Image_3D_Driver_ZBuffer
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Image_3D_Driver_ZBuffer __construct( )
void createImage( $x, $y)
void drawGradientPolygon( Image_3D_Polygon $polygon)
void drawPolygon( Image_3D_Polygon $polygon)
void getSupportedShading( )
void save( $file)
void setBackground( Image_3D_Color $color)
void setFiletye( $type)
void _drawLine( Image_3D_Point $p1, Image_3D_Point $p2)
void _getColor( Image_3D_Color $color, [ $alpha = 1.])
void _getPolygonOutlines( $pointArray)