Lines Matching refs:x2
57 /* draw a triangle with vertices at (x1, y1), (x2, y2)
60 static void drawTriangle (GLfloat x1, GLfloat y1, GLfloat x2,
65 glVertex3f (x2, y2, z);
71 static void drawViewVolume (GLfloat x1, GLfloat x2, GLfloat y1,
77 glVertex3f (x2, y1, -z1);
78 glVertex3f (x2, y2, -z1);
84 glVertex3f (x2, y1, -z2);
85 glVertex3f (x2, y2, -z2);
94 glVertex3f (x2, y1, -z1);
95 glVertex3f (x2, y1, -z2);
96 glVertex3f (x2, y2, -z1);
97 glVertex3f (x2, y2, -z2);