Lines Matching full:polygon
19 * Generic Convex Polygon Scan Conversion and Clipping
25 * poly_clip.c: homogeneous 3-D convex polygon clipper
48 * poly_clip_to_halfspace: clip convex polygon p against a plane,
74 /* on old polygon (p), u is previous vertex, v is current vertex */
94 * poly_clip_to_frustum: Clip the convex polygon p1 to the screen space frustum
97 * and similar tests for y and z, for each vertex v of the polygon.
98 * If polygon is entirely inside box, then POLY_CLIP_IN is returned.
99 * If polygon is entirely outside box, then POLY_CLIP_OUT is returned.
100 * Otherwise, if the polygon is cut by the box, p1 is modified and
137 * now clip against each of the planes that might cut the polygon,
