text: 
  /* Copyright (c) Mark J. Kilgard, 1998.  */
  
  /* This program is freely distributable without licensing fees
     and is provided without guarantee or warrantee expressed or
     implied. This program is -not- in the public domain. */
  
  #include <GL/glsmap.h>
  
  #include "glsmapint.h"
  
  void
  __smapDrawSphereMapMeshSide(SphereMapMesh *mesh, int side)
  {
  	INITFACE(mesh);
  	int i, j;
  
  	for (i=0; i<mesh->steps-1; i++) {
  		glBegin(GL_QUAD_STRIP);
  		for (j=0; j<mesh->steps; j++) {
  			glTexCoord2fv (FACEst(side,i,j));
  			glVertex2fv   (FACExy(side,i,j));
  			glTexCoord2fv (FACEst(side,i+1,j));
  			glVertex2fv   (FACExy(side,i+1,j));
  		}
  		glEnd();
  	}
  }
  
  /* Back face specially rendered for its singularity! */
  void
  __smapDrawSphereMapMeshBack(SphereMapMesh *mesh)
  {
  	INITBACK(mesh);
  	int side, i, j;
  
  	for (side=0; side<4; side++) {
  		for (j=0; j<mesh->rings-1+mesh->edgeExtend; j++) {
  			glBegin(GL_QUAD_STRIP);
  			for (i=0; i<mesh->steps; i++) {
  				glTexCoord2fv (BACKst(side,j,i));
  				glVertex2fv   (BACKxy(side,j,i));
  				glTexCoord2fv (BACKst(side,j+1,i));
  				glVertex2fv   (BACKxy(side,j+1,i));
  			}
  			glEnd();
  		}
  	}
  }
  
  