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Man Pages


Manual Reference Pages  -  GLEEXTRUSION (3)

NAME

gleExtrusion - Extrude arbitrary 2D contour along arbitrary 3D path.

CONTENTS

Syntax
Arguments
Description
See Also
Author

SYNTAX


void gleExtrusion (int ncp, gleDouble contour[][2], gleDouble cont_normal[][2], gleDouble up[3], int npoints, gleDouble point_array[][3], float color_array[][3]);

ARGUMENTS

ncp number of contour points
contour 2D contour
cont_normal 2D contour normals
up up vector for contour
npoints numpoints in poly-line
point_array polyline vertices
color_array colors at polyline verts

DESCRIPTION

Extrude arbitrary 2D contour along arbitrary 3D path. The argument "contour" specifies the 2D contour to be extruded, while the argument "point_array" specifies the path along which to extrude. The vector "up" defines the orientation of the contour y-axis in real 3D space.
Note that neither the very first segment, nor the very last segment are drawn. The first and last segments serve only to define the angle of the join at the very ends of the polyline. Thus, to draw one segment, three must be specified. To draw two segments, four must be specified, etc.
The normal array may be NULL. If it is, normal vectors will NOT be automatically generated, and the object will look terrible when lit.
The color array may be NULL. If NULL, the current color is used. If not NULL, the glColor3f() routine is used to set the color; therefore, specifying the glColorMaterial() subroutine before this primitive can be used to set diffuse, specular, ambient, etc. colors.

SEE ALSO

gleTwistExtrusion, gleSuperExtrusion

AUTHOR

Linas Vepstas (linas@fc.net)
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GLE GLEEXTRUSION (3GLE) 3.6

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