for( j=0; j<stacks-1; j++ )
{
- cpsi = cos ( psi ) ;
- spsi = sin ( psi ) ;
+ cpsi = cos ( psi );
+ spsi = sin ( psi );
phi = 0.0;
for( i=0; i<slices; i++ )
{
- int offset = 3 * ( j * slices + i ) ;
- cphi = cos ( phi ) ;
- sphi = sin ( phi ) ;
+ int offset = 3 * ( j * slices + i );
+ cphi = cos ( phi );
+ sphi = sin ( phi );
*(vertex + offset + 0) = sphi * spsi ;
*(vertex + offset + 1) = cphi * spsi ;
*(vertex + offset + 2) = cpsi ;
for( j=0; j<stacks - 1; j++ )
{
- int offset = 3 * ( j * slices + i ) ;
+ int offset = 3 * ( j * slices + i );
glNormal3dv( vertex + offset );
glVertex3dv( vertex + offset );
}
for( i=0; i<slices; i++ )
{
- int offset = 3 * ( j * slices + i ) ;
+ int offset = 3 * ( j * slices + i );
glNormal3dv( vertex + offset );
glVertex3dv( vertex + offset );
}
{
phi = 0.0;
psi += dpsi;
- cpsi = cos ( psi ) ;
- spsi = sin ( psi ) ;
+ cpsi = cos ( psi );
+ spsi = sin ( psi );
/* get coords */
glBegin( GL_QUAD_STRIP );
/* glBegin(GL_LINE_LOOP); */
for( i=0; i<slices; i++ )
{
- cphi = cos ( phi ) ;
- sphi = sin ( phi ) ;
+ cphi = cos ( phi );
+ sphi = sin ( phi );
next[ i * 3 + 0 ] = sphi * spsi ;
next[ i * 3 + 1 ] = cphi * spsi ;
next[ i * 3 + 2 ] = cpsi ;
double angle = M_PI / (double) slices * 2.0;
double slope = ( height / base );
double sBase = base ;
- double sinNormal = ( base / sqrt ( height * height + base * base )) ;
- double cosNormal = ( height / sqrt ( height * height + base * base )) ;
+ double sinNormal = ( base / sqrt ( height * height + base * base ));
+ double cosNormal = ( height / sqrt ( height * height + base * base ));
double *vertices = NULL;
int i, j;
for( j=0; j<slices; j++ )
{
glBegin( GL_LINE_LOOP );
- glNormal3d( sinNormal * vertices[(j+0)*2+0], sinNormal * vertices[(j+0)*2+1], cosNormal ) ;
+ glNormal3d( sinNormal * vertices[(j+0)*2+0], sinNormal * vertices[(j+0)*2+1], cosNormal );
glVertex3d( vertices[(j+0)*2+0] * scl_a, vertices[(j+0)*2+1] * scl_a, alt_a );
- glNormal3d( sinNormal * vertices[(j+1)*2+0], sinNormal * vertices[(j+1)*2+1], cosNormal ) ;
+ glNormal3d( sinNormal * vertices[(j+1)*2+0], sinNormal * vertices[(j+1)*2+1], cosNormal );
glVertex3d( vertices[(j+1)*2+0] * scl_a, vertices[(j+1)*2+1] * scl_a, alt_a );
- glNormal3d( sinNormal * vertices[(j+0)*2+0], sinNormal * vertices[(j+0)*2+1], cosNormal ) ;
+ glNormal3d( sinNormal * vertices[(j+0)*2+0], sinNormal * vertices[(j+0)*2+1], cosNormal );
glVertex3d( vertices[(j+0)*2+0] * scl_b, vertices[(j+0)*2+1] * scl_b, alt_b );
glEnd();
glBegin( GL_LINE_LOOP );
- glNormal3d( sinNormal * vertices[(j+0)*2+0], sinNormal * vertices[(j+0)*2+1], cosNormal ) ;
+ glNormal3d( sinNormal * vertices[(j+0)*2+0], sinNormal * vertices[(j+0)*2+1], cosNormal );
glVertex3d( vertices[(j+0)*2+0] * scl_b, vertices[(j+0)*2+1] * scl_b, alt_b );
- glNormal3d( sinNormal * vertices[(j+1)*2+0], sinNormal * vertices[(j+1)*2+1], cosNormal ) ;
+ glNormal3d( sinNormal * vertices[(j+1)*2+0], sinNormal * vertices[(j+1)*2+1], cosNormal );
glVertex3d( vertices[(j+1)*2+0] * scl_b, vertices[(j+1)*2+1] * scl_b, alt_b );
glVertex3d( vertices[(j+1)*2+0] * scl_a, vertices[(j+1)*2+1] * scl_a, alt_a );
glEnd();
double scl = alt / slope;
glBegin( GL_LINE_LOOP );
- glNormal3d( sinNormal * vertices[(j+0)*2+0], sinNormal * vertices[(j+0)*2+1], cosNormal ) ;
+ glNormal3d( sinNormal * vertices[(j+0)*2+0], sinNormal * vertices[(j+0)*2+1], cosNormal );
glVertex3d( vertices[ (j+0)*2+0 ] * scl, vertices[ (j+0)*2+1 ] * scl, height - alt );
- glNormal3d( sinNormal * vertices[(j+1)*2+0], sinNormal * vertices[(j+1)*2+1], cosNormal ) ;
+ glNormal3d( sinNormal * vertices[(j+1)*2+0], sinNormal * vertices[(j+1)*2+1], cosNormal );
glVertex3d( vertices[ (j+1)*2+0 ] * scl, vertices[ (j+1)*2+1 ] * scl, height - alt );
glVertex3d( 0, 0, height );
glEnd();
double angle = M_PI / (double) slices * 2.0f;
double slope = ( height / base );
double sBase = base ;
- double sinNormal = ( base / sqrt ( height * height + base * base )) ;
- double cosNormal = ( height / sqrt ( height * height + base * base )) ;
+ double sinNormal = ( base / sqrt ( height * height + base * base ));
+ double cosNormal = ( height / sqrt ( height * height + base * base ));
double *vertices = NULL;
int i, j;
for( j=0; j<slices; j++ )
{
glBegin( GL_TRIANGLES );
- glNormal3d( sinNormal * vertices[(j+0)*2+0], sinNormal * vertices[(j+0)*2+1], cosNormal ) ;
+ glNormal3d( sinNormal * vertices[(j+0)*2+0], sinNormal * vertices[(j+0)*2+1], cosNormal );
glVertex3d( vertices[(j+0)*2+0] * scl_a, vertices[(j+0)*2+1] * scl_a, alt_a );
- glNormal3d( sinNormal * vertices[(j+1)*2+0], sinNormal * vertices[(j+1)*2+1], cosNormal ) ;
+ glNormal3d( sinNormal * vertices[(j+1)*2+0], sinNormal * vertices[(j+1)*2+1], cosNormal );
glVertex3d( vertices[(j+1)*2+0] * scl_a, vertices[(j+1)*2+1] * scl_a, alt_a );
- glNormal3d( sinNormal * vertices[(j+0)*2+0], sinNormal * vertices[(j+0)*2+1], cosNormal ) ;
+ glNormal3d( sinNormal * vertices[(j+0)*2+0], sinNormal * vertices[(j+0)*2+1], cosNormal );
glVertex3d( vertices[(j+0)*2+0] * scl_b, vertices[(j+0)*2+1] * scl_b, alt_b );
glEnd();
glBegin( GL_TRIANGLES );
- glNormal3d( sinNormal * vertices[(j+0)*2+0], sinNormal * vertices[(j+0)*2+1], cosNormal ) ;
+ glNormal3d( sinNormal * vertices[(j+0)*2+0], sinNormal * vertices[(j+0)*2+1], cosNormal );
glVertex3d( vertices[(j+0)*2+0] * scl_b, vertices[(j+0)*2+1] * scl_b, alt_b );
- glNormal3d( sinNormal * vertices[(j+1)*2+0], sinNormal * vertices[(j+1)*2+1], cosNormal ) ;
+ glNormal3d( sinNormal * vertices[(j+1)*2+0], sinNormal * vertices[(j+1)*2+1], cosNormal );
glVertex3d( vertices[(j+1)*2+0] * scl_b, vertices[(j+1)*2+1] * scl_b, alt_b );
glVertex3d( vertices[(j+1)*2+0] * scl_a, vertices[(j+1)*2+1] * scl_a, alt_a );
glEnd();
double scl = alt / slope;
glBegin( GL_TRIANGLES );
- glNormal3d( sinNormal * vertices[(j+0)*2+0], sinNormal * vertices[(j+0)*2+1], cosNormal ) ;
+ glNormal3d( sinNormal * vertices[(j+0)*2+0], sinNormal * vertices[(j+0)*2+1], cosNormal );
glVertex3d( vertices[ (j+0)*2+0 ] * scl, vertices[ (j+0)*2+1 ] * scl, height - alt );
- glNormal3d( sinNormal * vertices[(j+1)*2+0], sinNormal * vertices[(j+1)*2+1], cosNormal ) ;
+ glNormal3d( sinNormal * vertices[(j+1)*2+0], sinNormal * vertices[(j+1)*2+1], cosNormal );
glVertex3d( vertices[ (j+1)*2+0 ] * scl, vertices[ (j+1)*2+1 ] * scl, height - alt );
glVertex3d( 0, 0, height );
glEnd();
for( j=0; j<nRings; j++ )
{
- cpsi = cos ( psi ) ;
- spsi = sin ( psi ) ;
+ cpsi = cos ( psi );
+ spsi = sin ( psi );
phi = 0.0;
for( i=0; i<nSides; i++ )
{
- int offset = 3 * ( j * nSides + i ) ;
- cphi = cos ( phi ) ;
- sphi = sin ( phi ) ;
- *(vertex + offset + 0) = cpsi * ( oradius + cphi * iradius ) ;
- *(vertex + offset + 1) = spsi * ( oradius + cphi * iradius ) ;
- *(vertex + offset + 2) = sphi * iradius ;
- *(normal + offset + 0) = cpsi * cphi ;
- *(normal + offset + 1) = spsi * cphi ;
- *(normal + offset + 2) = sphi ;
+ int offset = 3 * ( j * nSides + i );
+ cphi = cos ( phi );
+ sphi = sin ( phi );
+ *(vertex + offset + 0) = cpsi * ( oradius + cphi * iradius );
+ *(vertex + offset + 1) = spsi * ( oradius + cphi * iradius );
+ *(vertex + offset + 2) = sphi * iradius ;
+ *(normal + offset + 0) = cpsi * cphi;
+ *(normal + offset + 1) = spsi * cphi;
+ *(normal + offset + 2) = sphi;
phi += dphi;
}
for( j=0; j<nRings; j++ )
{
- int offset = 3 * ( j * nSides + i ) ;
+ int offset = 3 * ( j * nSides + i );
glNormal3dv( normal + offset );
glVertex3dv( vertex + offset );
}
for( i=0; i<nSides; i++ )
{
- int offset = 3 * ( j * nSides + i ) ;
+ int offset = 3 * ( j * nSides + i );
glNormal3dv( normal + offset );
glVertex3dv( vertex + offset );
}
glEnd();
}
- free ( vertex ) ;
- free ( normal ) ;
+ free ( vertex );
+ free ( normal );
glPopMatrix();
}
/*
* Increment the number of sides and rings to allow for one more point than surface
*/
- nSides ++ ;
- nRings ++ ;
+ nSides ++;
+ nRings ++;
/*
* Allocate the vertices array
glPushMatrix();
- dpsi = 2.0 * M_PI / (double)(nRings - 1) ;
- dphi = 2.0 * M_PI / (double)(nSides - 1) ;
+ dpsi = 2.0 * M_PI / (double)(nRings - 1);
+ dphi = 2.0 * M_PI / (double)(nSides - 1);
psi = 0.0;
for( j=0; j<nRings; j++ )
{
- cpsi = cos ( psi ) ;
- spsi = sin ( psi ) ;
+ cpsi = cos ( psi );
+ spsi = sin ( psi );
phi = 0.0;
for( i=0; i<nSides; i++ )
{
- int offset = 3 * ( j * nSides + i ) ;
- cphi = cos ( phi ) ;
- sphi = sin ( phi ) ;
- *(vertex + offset + 0) = cpsi * ( oradius + cphi * iradius ) ;
- *(vertex + offset + 1) = spsi * ( oradius + cphi * iradius ) ;
- *(vertex + offset + 2) = sphi * iradius ;
- *(normal + offset + 0) = cpsi * cphi ;
- *(normal + offset + 1) = spsi * cphi ;
- *(normal + offset + 2) = sphi ;
+ int offset = 3 * ( j * nSides + i );
+ cphi = cos ( phi );
+ sphi = sin ( phi );
+ *(vertex + offset + 0) = cpsi * ( oradius + cphi * iradius );
+ *(vertex + offset + 1) = spsi * ( oradius + cphi * iradius );
+ *(vertex + offset + 2) = sphi * iradius ;
+ *(normal + offset + 0) = cpsi * cphi;
+ *(normal + offset + 1) = spsi * cphi;
+ *(normal + offset + 2) = sphi;
phi += dphi;
}
{
for( j=0; j<nRings-1; j++ )
{
- int offset = 3 * ( j * nSides + i ) ;
+ int offset = 3 * ( j * nSides + i );
glNormal3dv( normal + offset );
glVertex3dv( vertex + offset );
glNormal3dv( normal + offset + 3 );
glEnd();
- free ( vertex ) ;
- free ( normal ) ;
+ free ( vertex );
+ free ( normal );
glPopMatrix();
}
* (+-x,0, z); (+-1, 1, 1); (0, z, x )
* where x = 0.61803398875 and z = 1.61803398875.
*/
- glBegin ( GL_LINE_LOOP ) ;
- glNormal3d ( 0.0, 0.525731112119, 0.850650808354 ) ; glVertex3d ( 0.0, 1.61803398875, 0.61803398875 ) ; glVertex3d ( -1.0, 1.0, 1.0 ) ; glVertex3d ( -0.61803398875, 0.0, 1.61803398875 ) ; glVertex3d ( 0.61803398875, 0.0, 1.61803398875 ) ; glVertex3d ( 1.0, 1.0, 1.0 ) ;
- glEnd () ;
- glBegin ( GL_LINE_LOOP ) ;
- glNormal3d ( 0.0, 0.525731112119, -0.850650808354 ) ; glVertex3d ( 0.0, 1.61803398875, -0.61803398875 ) ; glVertex3d ( 1.0, 1.0, -1.0 ) ; glVertex3d ( 0.61803398875, 0.0, -1.61803398875 ) ; glVertex3d ( -0.61803398875, 0.0, -1.61803398875 ) ; glVertex3d ( -1.0, 1.0, -1.0 ) ;
- glEnd () ;
- glBegin ( GL_LINE_LOOP ) ;
- glNormal3d ( 0.0, -0.525731112119, 0.850650808354 ) ; glVertex3d ( 0.0, -1.61803398875, 0.61803398875 ) ; glVertex3d ( 1.0, -1.0, 1.0 ) ; glVertex3d ( 0.61803398875, 0.0, 1.61803398875 ) ; glVertex3d ( -0.61803398875, 0.0, 1.61803398875 ) ; glVertex3d ( -1.0, -1.0, 1.0 ) ;
- glEnd () ;
- glBegin ( GL_LINE_LOOP ) ;
- glNormal3d ( 0.0, -0.525731112119, -0.850650808354 ) ; glVertex3d ( 0.0, -1.61803398875, -0.61803398875 ) ; glVertex3d ( -1.0, -1.0, -1.0 ) ; glVertex3d ( -0.61803398875, 0.0, -1.61803398875 ) ; glVertex3d ( 0.61803398875, 0.0, -1.61803398875 ) ; glVertex3d ( 1.0, -1.0, -1.0 ) ;
- glEnd () ;
-
- glBegin ( GL_LINE_LOOP ) ;
- glNormal3d ( 0.850650808354, 0.0, 0.525731112119 ) ; glVertex3d ( 0.61803398875, 0.0, 1.61803398875 ) ; glVertex3d ( 1.0, -1.0, 1.0 ) ; glVertex3d ( 1.61803398875, -0.61803398875, 0.0 ) ; glVertex3d ( 1.61803398875, 0.61803398875, 0.0 ) ; glVertex3d ( 1.0, 1.0, 1.0 ) ;
- glEnd () ;
- glBegin ( GL_LINE_LOOP ) ;
- glNormal3d ( -0.850650808354, 0.0, 0.525731112119 ) ; glVertex3d ( -0.61803398875, 0.0, 1.61803398875 ) ; glVertex3d ( -1.0, 1.0, 1.0 ) ; glVertex3d ( -1.61803398875, 0.61803398875, 0.0 ) ; glVertex3d ( -1.61803398875, -0.61803398875, 0.0 ) ; glVertex3d ( -1.0, -1.0, 1.0 ) ;
- glEnd () ;
- glBegin ( GL_LINE_LOOP ) ;
- glNormal3d ( 0.850650808354, 0.0, -0.525731112119 ) ; glVertex3d ( 0.61803398875, 0.0, -1.61803398875 ) ; glVertex3d ( 1.0, 1.0, -1.0 ) ; glVertex3d ( 1.61803398875, 0.61803398875, 0.0 ) ; glVertex3d ( 1.61803398875, -0.61803398875, 0.0 ) ; glVertex3d ( 1.0, -1.0, -1.0 ) ;
- glEnd () ;
- glBegin ( GL_LINE_LOOP ) ;
- glNormal3d ( -0.850650808354, 0.0, -0.525731112119 ) ; glVertex3d ( -0.61803398875, 0.0, -1.61803398875 ) ; glVertex3d ( -1.0, -1.0, -1.0 ) ; glVertex3d ( -1.61803398875, -0.61803398875, 0.0 ) ; glVertex3d ( -1.61803398875, 0.61803398875, 0.0 ) ; glVertex3d ( -1.0, 1.0, -1.0 ) ;
- glEnd () ;
-
- glBegin ( GL_LINE_LOOP ) ;
- glNormal3d ( 0.525731112119, 0.850650808354, 0.0 ) ; glVertex3d ( 1.61803398875, 0.61803398875, 0.0 ) ; glVertex3d ( 1.0, 1.0, -1.0 ) ; glVertex3d ( 0.0, 1.61803398875, -0.61803398875 ) ; glVertex3d ( 0.0, 1.61803398875, 0.61803398875 ) ; glVertex3d ( 1.0, 1.0, 1.0 ) ;
- glEnd () ;
- glBegin ( GL_LINE_LOOP ) ;
- glNormal3d ( 0.525731112119, -0.850650808354, 0.0 ) ; glVertex3d ( 1.61803398875, -0.61803398875, 0.0 ) ; glVertex3d ( 1.0, -1.0, 1.0 ) ; glVertex3d ( 0.0, -1.61803398875, 0.61803398875 ) ; glVertex3d ( 0.0, -1.61803398875, -0.61803398875 ) ; glVertex3d ( 1.0, -1.0, -1.0 ) ;
- glEnd () ;
- glBegin ( GL_LINE_LOOP ) ;
- glNormal3d ( -0.525731112119, 0.850650808354, 0.0 ) ; glVertex3d ( -1.61803398875, 0.61803398875, 0.0 ) ; glVertex3d ( -1.0, 1.0, 1.0 ) ; glVertex3d ( 0.0, 1.61803398875, 0.61803398875 ) ; glVertex3d ( 0.0, 1.61803398875, -0.61803398875 ) ; glVertex3d ( -1.0, 1.0, -1.0 ) ;
- glEnd () ;
- glBegin ( GL_LINE_LOOP ) ;
- glNormal3d ( -0.525731112119, -0.850650808354, 0.0 ) ; glVertex3d ( -1.61803398875, -0.61803398875, 0.0 ) ; glVertex3d ( -1.0, -1.0, -1.0 ) ; glVertex3d ( 0.0, -1.61803398875, -0.61803398875 ) ; glVertex3d ( 0.0, -1.61803398875, 0.61803398875 ) ; glVertex3d ( -1.0, -1.0, 1.0 ) ;
- glEnd () ;
+ glBegin ( GL_LINE_LOOP );
+ glNormal3d ( 0.0, 0.525731112119, 0.850650808354 ); glVertex3d ( 0.0, 1.61803398875, 0.61803398875 ); glVertex3d ( -1.0, 1.0, 1.0 ); glVertex3d ( -0.61803398875, 0.0, 1.61803398875 ); glVertex3d ( 0.61803398875, 0.0, 1.61803398875 ); glVertex3d ( 1.0, 1.0, 1.0 );
+ glEnd ();
+ glBegin ( GL_LINE_LOOP );
+ glNormal3d ( 0.0, 0.525731112119, -0.850650808354 ); glVertex3d ( 0.0, 1.61803398875, -0.61803398875 ); glVertex3d ( 1.0, 1.0, -1.0 ); glVertex3d ( 0.61803398875, 0.0, -1.61803398875 ); glVertex3d ( -0.61803398875, 0.0, -1.61803398875 ); glVertex3d ( -1.0, 1.0, -1.0 );
+ glEnd ();
+ glBegin ( GL_LINE_LOOP );
+ glNormal3d ( 0.0, -0.525731112119, 0.850650808354 ); glVertex3d ( 0.0, -1.61803398875, 0.61803398875 ); glVertex3d ( 1.0, -1.0, 1.0 ); glVertex3d ( 0.61803398875, 0.0, 1.61803398875 ); glVertex3d ( -0.61803398875, 0.0, 1.61803398875 ); glVertex3d ( -1.0, -1.0, 1.0 );
+ glEnd ();
+ glBegin ( GL_LINE_LOOP );
+ glNormal3d ( 0.0, -0.525731112119, -0.850650808354 ); glVertex3d ( 0.0, -1.61803398875, -0.61803398875 ); glVertex3d ( -1.0, -1.0, -1.0 ); glVertex3d ( -0.61803398875, 0.0, -1.61803398875 ); glVertex3d ( 0.61803398875, 0.0, -1.61803398875 ); glVertex3d ( 1.0, -1.0, -1.0 );
+ glEnd ();
+
+ glBegin ( GL_LINE_LOOP );
+ glNormal3d ( 0.850650808354, 0.0, 0.525731112119 ); glVertex3d ( 0.61803398875, 0.0, 1.61803398875 ); glVertex3d ( 1.0, -1.0, 1.0 ); glVertex3d ( 1.61803398875, -0.61803398875, 0.0 ); glVertex3d ( 1.61803398875, 0.61803398875, 0.0 ); glVertex3d ( 1.0, 1.0, 1.0 );
+ glEnd ();
+ glBegin ( GL_LINE_LOOP );
+ glNormal3d ( -0.850650808354, 0.0, 0.525731112119 ); glVertex3d ( -0.61803398875, 0.0, 1.61803398875 ); glVertex3d ( -1.0, 1.0, 1.0 ); glVertex3d ( -1.61803398875, 0.61803398875, 0.0 ); glVertex3d ( -1.61803398875, -0.61803398875, 0.0 ); glVertex3d ( -1.0, -1.0, 1.0 );
+ glEnd ();
+ glBegin ( GL_LINE_LOOP );
+ glNormal3d ( 0.850650808354, 0.0, -0.525731112119 ); glVertex3d ( 0.61803398875, 0.0, -1.61803398875 ); glVertex3d ( 1.0, 1.0, -1.0 ); glVertex3d ( 1.61803398875, 0.61803398875, 0.0 ); glVertex3d ( 1.61803398875, -0.61803398875, 0.0 ); glVertex3d ( 1.0, -1.0, -1.0 );
+ glEnd ();
+ glBegin ( GL_LINE_LOOP );
+ glNormal3d ( -0.850650808354, 0.0, -0.525731112119 ); glVertex3d ( -0.61803398875, 0.0, -1.61803398875 ); glVertex3d ( -1.0, -1.0, -1.0 ); glVertex3d ( -1.61803398875, -0.61803398875, 0.0 ); glVertex3d ( -1.61803398875, 0.61803398875, 0.0 ); glVertex3d ( -1.0, 1.0, -1.0 );
+ glEnd ();
+
+ glBegin ( GL_LINE_LOOP );
+ glNormal3d ( 0.525731112119, 0.850650808354, 0.0 ); glVertex3d ( 1.61803398875, 0.61803398875, 0.0 ); glVertex3d ( 1.0, 1.0, -1.0 ); glVertex3d ( 0.0, 1.61803398875, -0.61803398875 ); glVertex3d ( 0.0, 1.61803398875, 0.61803398875 ); glVertex3d ( 1.0, 1.0, 1.0 );
+ glEnd ();
+ glBegin ( GL_LINE_LOOP );
+ glNormal3d ( 0.525731112119, -0.850650808354, 0.0 ); glVertex3d ( 1.61803398875, -0.61803398875, 0.0 ); glVertex3d ( 1.0, -1.0, 1.0 ); glVertex3d ( 0.0, -1.61803398875, 0.61803398875 ); glVertex3d ( 0.0, -1.61803398875, -0.61803398875 ); glVertex3d ( 1.0, -1.0, -1.0 );
+ glEnd ();
+ glBegin ( GL_LINE_LOOP );
+ glNormal3d ( -0.525731112119, 0.850650808354, 0.0 ); glVertex3d ( -1.61803398875, 0.61803398875, 0.0 ); glVertex3d ( -1.0, 1.0, 1.0 ); glVertex3d ( 0.0, 1.61803398875, 0.61803398875 ); glVertex3d ( 0.0, 1.61803398875, -0.61803398875 ); glVertex3d ( -1.0, 1.0, -1.0 );
+ glEnd ();
+ glBegin ( GL_LINE_LOOP );
+ glNormal3d ( -0.525731112119, -0.850650808354, 0.0 ); glVertex3d ( -1.61803398875, -0.61803398875, 0.0 ); glVertex3d ( -1.0, -1.0, -1.0 ); glVertex3d ( 0.0, -1.61803398875, -0.61803398875 ); glVertex3d ( 0.0, -1.61803398875, 0.61803398875 ); glVertex3d ( -1.0, -1.0, 1.0 );
+ glEnd ();
}
/*
* (+-x,0, z); (+-1, 1, 1); (0, z, x )
* where x = 0.61803398875 and z = 1.61803398875.
*/
- glBegin ( GL_POLYGON ) ;
- glNormal3d ( 0.0, 0.525731112119, 0.850650808354 ) ; glVertex3d ( 0.0, 1.61803398875, 0.61803398875 ) ; glVertex3d ( -1.0, 1.0, 1.0 ) ; glVertex3d ( -0.61803398875, 0.0, 1.61803398875 ) ; glVertex3d ( 0.61803398875, 0.0, 1.61803398875 ) ; glVertex3d ( 1.0, 1.0, 1.0 ) ;
- glEnd () ;
- glBegin ( GL_POLYGON ) ;
- glNormal3d ( 0.0, 0.525731112119, -0.850650808354 ) ; glVertex3d ( 0.0, 1.61803398875, -0.61803398875 ) ; glVertex3d ( 1.0, 1.0, -1.0 ) ; glVertex3d ( 0.61803398875, 0.0, -1.61803398875 ) ; glVertex3d ( -0.61803398875, 0.0, -1.61803398875 ) ; glVertex3d ( -1.0, 1.0, -1.0 ) ;
- glEnd () ;
- glBegin ( GL_POLYGON ) ;
- glNormal3d ( 0.0, -0.525731112119, 0.850650808354 ) ; glVertex3d ( 0.0, -1.61803398875, 0.61803398875 ) ; glVertex3d ( 1.0, -1.0, 1.0 ) ; glVertex3d ( 0.61803398875, 0.0, 1.61803398875 ) ; glVertex3d ( -0.61803398875, 0.0, 1.61803398875 ) ; glVertex3d ( -1.0, -1.0, 1.0 ) ;
- glEnd () ;
- glBegin ( GL_POLYGON ) ;
- glNormal3d ( 0.0, -0.525731112119, -0.850650808354 ) ; glVertex3d ( 0.0, -1.61803398875, -0.61803398875 ) ; glVertex3d ( -1.0, -1.0, -1.0 ) ; glVertex3d ( -0.61803398875, 0.0, -1.61803398875 ) ; glVertex3d ( 0.61803398875, 0.0, -1.61803398875 ) ; glVertex3d ( 1.0, -1.0, -1.0 ) ;
- glEnd () ;
-
- glBegin ( GL_POLYGON ) ;
- glNormal3d ( 0.850650808354, 0.0, 0.525731112119 ) ; glVertex3d ( 0.61803398875, 0.0, 1.61803398875 ) ; glVertex3d ( 1.0, -1.0, 1.0 ) ; glVertex3d ( 1.61803398875, -0.61803398875, 0.0 ) ; glVertex3d ( 1.61803398875, 0.61803398875, 0.0 ) ; glVertex3d ( 1.0, 1.0, 1.0 ) ;
- glEnd () ;
- glBegin ( GL_POLYGON ) ;
- glNormal3d ( -0.850650808354, 0.0, 0.525731112119 ) ; glVertex3d ( -0.61803398875, 0.0, 1.61803398875 ) ; glVertex3d ( -1.0, 1.0, 1.0 ) ; glVertex3d ( -1.61803398875, 0.61803398875, 0.0 ) ; glVertex3d ( -1.61803398875, -0.61803398875, 0.0 ) ; glVertex3d ( -1.0, -1.0, 1.0 ) ;
- glEnd () ;
- glBegin ( GL_POLYGON ) ;
- glNormal3d ( 0.850650808354, 0.0, -0.525731112119 ) ; glVertex3d ( 0.61803398875, 0.0, -1.61803398875 ) ; glVertex3d ( 1.0, 1.0, -1.0 ) ; glVertex3d ( 1.61803398875, 0.61803398875, 0.0 ) ; glVertex3d ( 1.61803398875, -0.61803398875, 0.0 ) ; glVertex3d ( 1.0, -1.0, -1.0 ) ;
- glEnd () ;
- glBegin ( GL_POLYGON ) ;
- glNormal3d ( -0.850650808354, 0.0, -0.525731112119 ) ; glVertex3d ( -0.61803398875, 0.0, -1.61803398875 ) ; glVertex3d ( -1.0, -1.0, -1.0 ) ; glVertex3d ( -1.61803398875, -0.61803398875, 0.0 ) ; glVertex3d ( -1.61803398875, 0.61803398875, 0.0 ) ; glVertex3d ( -1.0, 1.0, -1.0 ) ;
- glEnd () ;
-
- glBegin ( GL_POLYGON ) ;
- glNormal3d ( 0.525731112119, 0.850650808354, 0.0 ) ; glVertex3d ( 1.61803398875, 0.61803398875, 0.0 ) ; glVertex3d ( 1.0, 1.0, -1.0 ) ; glVertex3d ( 0.0, 1.61803398875, -0.61803398875 ) ; glVertex3d ( 0.0, 1.61803398875, 0.61803398875 ) ; glVertex3d ( 1.0, 1.0, 1.0 ) ;
- glEnd () ;
- glBegin ( GL_POLYGON ) ;
- glNormal3d ( 0.525731112119, -0.850650808354, 0.0 ) ; glVertex3d ( 1.61803398875, -0.61803398875, 0.0 ) ; glVertex3d ( 1.0, -1.0, 1.0 ) ; glVertex3d ( 0.0, -1.61803398875, 0.61803398875 ) ; glVertex3d ( 0.0, -1.61803398875, -0.61803398875 ) ; glVertex3d ( 1.0, -1.0, -1.0 ) ;
- glEnd () ;
- glBegin ( GL_POLYGON ) ;
- glNormal3d ( -0.525731112119, 0.850650808354, 0.0 ) ; glVertex3d ( -1.61803398875, 0.61803398875, 0.0 ) ; glVertex3d ( -1.0, 1.0, 1.0 ) ; glVertex3d ( 0.0, 1.61803398875, 0.61803398875 ) ; glVertex3d ( 0.0, 1.61803398875, -0.61803398875 ) ; glVertex3d ( -1.0, 1.0, -1.0 ) ;
- glEnd () ;
- glBegin ( GL_POLYGON ) ;
- glNormal3d ( -0.525731112119, -0.850650808354, 0.0 ) ; glVertex3d ( -1.61803398875, -0.61803398875, 0.0 ) ; glVertex3d ( -1.0, -1.0, -1.0 ) ; glVertex3d ( 0.0, -1.61803398875, -0.61803398875 ) ; glVertex3d ( 0.0, -1.61803398875, 0.61803398875 ) ; glVertex3d ( -1.0, -1.0, 1.0 ) ;
- glEnd () ;
+ glBegin ( GL_POLYGON );
+ glNormal3d ( 0.0, 0.525731112119, 0.850650808354 ); glVertex3d ( 0.0, 1.61803398875, 0.61803398875 ); glVertex3d ( -1.0, 1.0, 1.0 ); glVertex3d ( -0.61803398875, 0.0, 1.61803398875 ); glVertex3d ( 0.61803398875, 0.0, 1.61803398875 ); glVertex3d ( 1.0, 1.0, 1.0 );
+ glEnd ();
+ glBegin ( GL_POLYGON );
+ glNormal3d ( 0.0, 0.525731112119, -0.850650808354 ); glVertex3d ( 0.0, 1.61803398875, -0.61803398875 ); glVertex3d ( 1.0, 1.0, -1.0 ); glVertex3d ( 0.61803398875, 0.0, -1.61803398875 ); glVertex3d ( -0.61803398875, 0.0, -1.61803398875 ); glVertex3d ( -1.0, 1.0, -1.0 );
+ glEnd ();
+ glBegin ( GL_POLYGON );
+ glNormal3d ( 0.0, -0.525731112119, 0.850650808354 ); glVertex3d ( 0.0, -1.61803398875, 0.61803398875 ); glVertex3d ( 1.0, -1.0, 1.0 ); glVertex3d ( 0.61803398875, 0.0, 1.61803398875 ); glVertex3d ( -0.61803398875, 0.0, 1.61803398875 ); glVertex3d ( -1.0, -1.0, 1.0 );
+ glEnd ();
+ glBegin ( GL_POLYGON );
+ glNormal3d ( 0.0, -0.525731112119, -0.850650808354 ); glVertex3d ( 0.0, -1.61803398875, -0.61803398875 ); glVertex3d ( -1.0, -1.0, -1.0 ); glVertex3d ( -0.61803398875, 0.0, -1.61803398875 ); glVertex3d ( 0.61803398875, 0.0, -1.61803398875 ); glVertex3d ( 1.0, -1.0, -1.0 );
+ glEnd ();
+
+ glBegin ( GL_POLYGON );
+ glNormal3d ( 0.850650808354, 0.0, 0.525731112119 ); glVertex3d ( 0.61803398875, 0.0, 1.61803398875 ); glVertex3d ( 1.0, -1.0, 1.0 ); glVertex3d ( 1.61803398875, -0.61803398875, 0.0 ); glVertex3d ( 1.61803398875, 0.61803398875, 0.0 ); glVertex3d ( 1.0, 1.0, 1.0 );
+ glEnd ();
+ glBegin ( GL_POLYGON );
+ glNormal3d ( -0.850650808354, 0.0, 0.525731112119 ); glVertex3d ( -0.61803398875, 0.0, 1.61803398875 ); glVertex3d ( -1.0, 1.0, 1.0 ); glVertex3d ( -1.61803398875, 0.61803398875, 0.0 ); glVertex3d ( -1.61803398875, -0.61803398875, 0.0 ); glVertex3d ( -1.0, -1.0, 1.0 );
+ glEnd ();
+ glBegin ( GL_POLYGON );
+ glNormal3d ( 0.850650808354, 0.0, -0.525731112119 ); glVertex3d ( 0.61803398875, 0.0, -1.61803398875 ); glVertex3d ( 1.0, 1.0, -1.0 ); glVertex3d ( 1.61803398875, 0.61803398875, 0.0 ); glVertex3d ( 1.61803398875, -0.61803398875, 0.0 ); glVertex3d ( 1.0, -1.0, -1.0 );
+ glEnd ();
+ glBegin ( GL_POLYGON );
+ glNormal3d ( -0.850650808354, 0.0, -0.525731112119 ); glVertex3d ( -0.61803398875, 0.0, -1.61803398875 ); glVertex3d ( -1.0, -1.0, -1.0 ); glVertex3d ( -1.61803398875, -0.61803398875, 0.0 ); glVertex3d ( -1.61803398875, 0.61803398875, 0.0 ); glVertex3d ( -1.0, 1.0, -1.0 );
+ glEnd ();
+
+ glBegin ( GL_POLYGON );
+ glNormal3d ( 0.525731112119, 0.850650808354, 0.0 ); glVertex3d ( 1.61803398875, 0.61803398875, 0.0 ); glVertex3d ( 1.0, 1.0, -1.0 ); glVertex3d ( 0.0, 1.61803398875, -0.61803398875 ); glVertex3d ( 0.0, 1.61803398875, 0.61803398875 ); glVertex3d ( 1.0, 1.0, 1.0 );
+ glEnd ();
+ glBegin ( GL_POLYGON );
+ glNormal3d ( 0.525731112119, -0.850650808354, 0.0 ); glVertex3d ( 1.61803398875, -0.61803398875, 0.0 ); glVertex3d ( 1.0, -1.0, 1.0 ); glVertex3d ( 0.0, -1.61803398875, 0.61803398875 ); glVertex3d ( 0.0, -1.61803398875, -0.61803398875 ); glVertex3d ( 1.0, -1.0, -1.0 );
+ glEnd ();
+ glBegin ( GL_POLYGON );
+ glNormal3d ( -0.525731112119, 0.850650808354, 0.0 ); glVertex3d ( -1.61803398875, 0.61803398875, 0.0 ); glVertex3d ( -1.0, 1.0, 1.0 ); glVertex3d ( 0.0, 1.61803398875, 0.61803398875 ); glVertex3d ( 0.0, 1.61803398875, -0.61803398875 ); glVertex3d ( -1.0, 1.0, -1.0 );
+ glEnd ();
+ glBegin ( GL_POLYGON );
+ glNormal3d ( -0.525731112119, -0.850650808354, 0.0 ); glVertex3d ( -1.61803398875, -0.61803398875, 0.0 ); glVertex3d ( -1.0, -1.0, -1.0 ); glVertex3d ( 0.0, -1.61803398875, -0.61803398875 ); glVertex3d ( 0.0, -1.61803398875, 0.61803398875 ); glVertex3d ( -1.0, -1.0, 1.0 );
+ glEnd ();
}
/*
* Normals: The unit normals are simply the negative of the coordinates of the point not on the surface.
*/
- double r0[3] = { 1.0, 0.0, 0.0 } ;
- double r1[3] = { -0.333333333333, 0.942809041582, 0.0 } ;
- double r2[3] = { -0.333333333333, -0.471404520791, 0.816496580928 } ;
- double r3[3] = { -0.333333333333, -0.471404520791, -0.816496580928 } ;
-
- glBegin( GL_LINE_LOOP ) ;
- glNormal3d ( -1.0, 0.0, 0.0 ) ; glVertex3dv ( r1 ) ; glVertex3dv ( r3 ) ; glVertex3dv ( r2 ) ;
- glNormal3d ( 0.333333333333, -0.942809041582, 0.0 ) ; glVertex3dv ( r0 ) ; glVertex3dv ( r2 ) ; glVertex3dv ( r3 ) ;
- glNormal3d ( 0.333333333333, 0.471404520791, -0.816496580928 ) ; glVertex3dv ( r0 ) ; glVertex3dv ( r3 ) ; glVertex3dv ( r1 ) ;
- glNormal3d ( 0.333333333333, 0.471404520791, 0.816496580928 ) ; glVertex3dv ( r0 ) ; glVertex3dv ( r1 ) ; glVertex3dv ( r2 ) ;
- glEnd() ;
+ double r0[3] = { 1.0, 0.0, 0.0 };
+ double r1[3] = { -0.333333333333, 0.942809041582, 0.0 };
+ double r2[3] = { -0.333333333333, -0.471404520791, 0.816496580928 };
+ double r3[3] = { -0.333333333333, -0.471404520791, -0.816496580928 };
+
+ glBegin( GL_LINE_LOOP );
+ glNormal3d ( -1.0, 0.0, 0.0 ); glVertex3dv ( r1 ); glVertex3dv ( r3 ); glVertex3dv ( r2 );
+ glNormal3d ( 0.333333333333, -0.942809041582, 0.0 ); glVertex3dv ( r0 ); glVertex3dv ( r2 ); glVertex3dv ( r3 );
+ glNormal3d ( 0.333333333333, 0.471404520791, -0.816496580928 ); glVertex3dv ( r0 ); glVertex3dv ( r3 ); glVertex3dv ( r1 );
+ glNormal3d ( 0.333333333333, 0.471404520791, 0.816496580928 ); glVertex3dv ( r0 ); glVertex3dv ( r1 ); glVertex3dv ( r2 );
+ glEnd();
}
/*
* Normals: The unit normals are simply the negative of the coordinates of the point not on the surface.
*/
- double r0[3] = { 1.0, 0.0, 0.0 } ;
- double r1[3] = { -0.333333333333, 0.942809041582, 0.0 } ;
- double r2[3] = { -0.333333333333, -0.471404520791, 0.816496580928 } ;
- double r3[3] = { -0.333333333333, -0.471404520791, -0.816496580928 } ;
-
- glBegin( GL_TRIANGLES ) ;
- glNormal3d ( -1.0, 0.0, 0.0 ) ; glVertex3dv ( r1 ) ; glVertex3dv ( r3 ) ; glVertex3dv ( r2 ) ;
- glNormal3d ( 0.333333333333, -0.942809041582, 0.0 ) ; glVertex3dv ( r0 ) ; glVertex3dv ( r2 ) ; glVertex3dv ( r3 ) ;
- glNormal3d ( 0.333333333333, 0.471404520791, -0.816496580928 ) ; glVertex3dv ( r0 ) ; glVertex3dv ( r3 ) ; glVertex3dv ( r1 ) ;
- glNormal3d ( 0.333333333333, 0.471404520791, 0.816496580928 ) ; glVertex3dv ( r0 ) ; glVertex3dv ( r1 ) ; glVertex3dv ( r2 ) ;
- glEnd() ;
+ double r0[3] = { 1.0, 0.0, 0.0 };
+ double r1[3] = { -0.333333333333, 0.942809041582, 0.0 };
+ double r2[3] = { -0.333333333333, -0.471404520791, 0.816496580928 };
+ double r3[3] = { -0.333333333333, -0.471404520791, -0.816496580928 };
+
+ glBegin( GL_TRIANGLES );
+ glNormal3d ( -1.0, 0.0, 0.0 ); glVertex3dv ( r1 ); glVertex3dv ( r3 ); glVertex3dv ( r2 );
+ glNormal3d ( 0.333333333333, -0.942809041582, 0.0 ); glVertex3dv ( r0 ); glVertex3dv ( r2 ); glVertex3dv ( r3 );
+ glNormal3d ( 0.333333333333, 0.471404520791, -0.816496580928 ); glVertex3dv ( r0 ); glVertex3dv ( r3 ); glVertex3dv ( r1 );
+ glNormal3d ( 0.333333333333, 0.471404520791, 0.816496580928 ); glVertex3dv ( r0 ); glVertex3dv ( r1 ); glVertex3dv ( r2 );
+ glEnd();
}
/*
double icos_r[12][3] = { { 1.0, 0.0, 0.0 },
{ 0.447213595500, 0.894427191000, 0.0 }, { 0.447213595500, 0.276393202252, 0.850650808354 }, { 0.447213595500, -0.723606797748, 0.525731112119 }, { 0.447213595500, -0.723606797748, -0.525731112119 }, { 0.447213595500, 0.276393202252, -0.850650808354 },
{ -0.447213595500, -0.894427191000, 0.0 }, { -0.447213595500, -0.276393202252, 0.850650808354 }, { -0.447213595500, 0.723606797748, 0.525731112119 }, { -0.447213595500, 0.723606797748, -0.525731112119 }, { -0.447213595500, -0.276393202252, -0.850650808354 },
- { -1.0, 0.0, 0.0 } } ;
+ { -1.0, 0.0, 0.0 } };
int icos_v [20][3] = { { 0, 1, 2 }, { 0, 2, 3 }, { 0, 3, 4 }, { 0, 4, 5 }, { 0, 5, 1 },
{ 1, 8, 2 }, { 2, 7, 3 }, { 3, 6, 4 }, { 4, 10, 5 }, { 5, 9, 1 },
{ 1, 9, 8 }, { 2, 8, 7 }, { 3, 7, 6 }, { 4, 6, 10 }, { 5, 10, 9 },
- { 11, 9, 10 }, { 11, 8, 9 }, { 11, 7, 8 }, { 11, 6, 7 }, { 11, 10, 6 } } ;
+ { 11, 9, 10 }, { 11, 8, 9 }, { 11, 7, 8 }, { 11, 6, 7 }, { 11, 10, 6 } };
void FGAPIENTRY glutWireIcosahedron( void )
{
int i ;
for ( i = 0; i < 20; i++ )
{
- double normal[3] ;
- normal[0] = ( icos_r[icos_v[i][1]][1] - icos_r[icos_v[i][0]][1] ) * ( icos_r[icos_v[i][2]][2] - icos_r[icos_v[i][0]][2] ) - ( icos_r[icos_v[i][1]][2] - icos_r[icos_v[i][0]][2] ) * ( icos_r[icos_v[i][2]][1] - icos_r[icos_v[i][0]][1] ) ;
- normal[1] = ( icos_r[icos_v[i][1]][2] - icos_r[icos_v[i][0]][2] ) * ( icos_r[icos_v[i][2]][0] - icos_r[icos_v[i][0]][0] ) - ( icos_r[icos_v[i][1]][0] - icos_r[icos_v[i][0]][0] ) * ( icos_r[icos_v[i][2]][2] - icos_r[icos_v[i][0]][2] ) ;
- normal[2] = ( icos_r[icos_v[i][1]][0] - icos_r[icos_v[i][0]][0] ) * ( icos_r[icos_v[i][2]][1] - icos_r[icos_v[i][0]][1] ) - ( icos_r[icos_v[i][1]][1] - icos_r[icos_v[i][0]][1] ) * ( icos_r[icos_v[i][2]][0] - icos_r[icos_v[i][0]][0] ) ;
- glBegin ( GL_LINE_LOOP ) ;
- glNormal3dv ( normal ) ;
- glVertex3dv ( icos_r[icos_v[i][0]] ) ;
- glVertex3dv ( icos_r[icos_v[i][1]] ) ;
- glVertex3dv ( icos_r[icos_v[i][2]] ) ;
- glEnd () ;
+ double normal[3];
+ normal[0] = ( icos_r[icos_v[i][1]][1] - icos_r[icos_v[i][0]][1] ) * ( icos_r[icos_v[i][2]][2] - icos_r[icos_v[i][0]][2] ) - ( icos_r[icos_v[i][1]][2] - icos_r[icos_v[i][0]][2] ) * ( icos_r[icos_v[i][2]][1] - icos_r[icos_v[i][0]][1] );
+ normal[1] = ( icos_r[icos_v[i][1]][2] - icos_r[icos_v[i][0]][2] ) * ( icos_r[icos_v[i][2]][0] - icos_r[icos_v[i][0]][0] ) - ( icos_r[icos_v[i][1]][0] - icos_r[icos_v[i][0]][0] ) * ( icos_r[icos_v[i][2]][2] - icos_r[icos_v[i][0]][2] );
+ normal[2] = ( icos_r[icos_v[i][1]][0] - icos_r[icos_v[i][0]][0] ) * ( icos_r[icos_v[i][2]][1] - icos_r[icos_v[i][0]][1] ) - ( icos_r[icos_v[i][1]][1] - icos_r[icos_v[i][0]][1] ) * ( icos_r[icos_v[i][2]][0] - icos_r[icos_v[i][0]][0] );
+ glBegin ( GL_LINE_LOOP );
+ glNormal3dv ( normal );
+ glVertex3dv ( icos_r[icos_v[i][0]] );
+ glVertex3dv ( icos_r[icos_v[i][1]] );
+ glVertex3dv ( icos_r[icos_v[i][2]] );
+ glEnd ();
}
}
{
int i ;
- glBegin ( GL_TRIANGLES ) ;
+ glBegin ( GL_TRIANGLES );
for ( i = 0; i < 20; i++ )
{
- double normal[3] ;
- normal[0] = ( icos_r[icos_v[i][1]][1] - icos_r[icos_v[i][0]][1] ) * ( icos_r[icos_v[i][2]][2] - icos_r[icos_v[i][0]][2] ) - ( icos_r[icos_v[i][1]][2] - icos_r[icos_v[i][0]][2] ) * ( icos_r[icos_v[i][2]][1] - icos_r[icos_v[i][0]][1] ) ;
- normal[1] = ( icos_r[icos_v[i][1]][2] - icos_r[icos_v[i][0]][2] ) * ( icos_r[icos_v[i][2]][0] - icos_r[icos_v[i][0]][0] ) - ( icos_r[icos_v[i][1]][0] - icos_r[icos_v[i][0]][0] ) * ( icos_r[icos_v[i][2]][2] - icos_r[icos_v[i][0]][2] ) ;
- normal[2] = ( icos_r[icos_v[i][1]][0] - icos_r[icos_v[i][0]][0] ) * ( icos_r[icos_v[i][2]][1] - icos_r[icos_v[i][0]][1] ) - ( icos_r[icos_v[i][1]][1] - icos_r[icos_v[i][0]][1] ) * ( icos_r[icos_v[i][2]][0] - icos_r[icos_v[i][0]][0] ) ;
- glNormal3dv ( normal ) ;
- glVertex3dv ( icos_r[icos_v[i][0]] ) ;
- glVertex3dv ( icos_r[icos_v[i][1]] ) ;
- glVertex3dv ( icos_r[icos_v[i][2]] ) ;
+ double normal[3];
+ normal[0] = ( icos_r[icos_v[i][1]][1] - icos_r[icos_v[i][0]][1] ) * ( icos_r[icos_v[i][2]][2] - icos_r[icos_v[i][0]][2] ) - ( icos_r[icos_v[i][1]][2] - icos_r[icos_v[i][0]][2] ) * ( icos_r[icos_v[i][2]][1] - icos_r[icos_v[i][0]][1] );
+ normal[1] = ( icos_r[icos_v[i][1]][2] - icos_r[icos_v[i][0]][2] ) * ( icos_r[icos_v[i][2]][0] - icos_r[icos_v[i][0]][0] ) - ( icos_r[icos_v[i][1]][0] - icos_r[icos_v[i][0]][0] ) * ( icos_r[icos_v[i][2]][2] - icos_r[icos_v[i][0]][2] );
+ normal[2] = ( icos_r[icos_v[i][1]][0] - icos_r[icos_v[i][0]][0] ) * ( icos_r[icos_v[i][2]][1] - icos_r[icos_v[i][0]][1] ) - ( icos_r[icos_v[i][1]][1] - icos_r[icos_v[i][0]][1] ) * ( icos_r[icos_v[i][2]][0] - icos_r[icos_v[i][0]][0] );
+ glNormal3dv ( normal );
+ glVertex3dv ( icos_r[icos_v[i][0]] );
+ glVertex3dv ( icos_r[icos_v[i][1]] );
+ glVertex3dv ( icos_r[icos_v[i][2]] );
}
- glEnd () ;
+ glEnd ();
}
/*
{ 0.707106781187, 0.000000000000, 0.5 }, { 0.000000000000, 0.707106781187, 0.5 }, { -0.707106781187, 0.000000000000, 0.5 }, { 0.000000000000, -0.707106781187, 0.5 },
{ 0.707106781187, 0.707106781187, 0.0 }, { -0.707106781187, 0.707106781187, 0.0 }, { -0.707106781187, -0.707106781187, 0.0 }, { 0.707106781187, -0.707106781187, 0.0 },
{ 0.707106781187, 0.000000000000, -0.5 }, { 0.000000000000, 0.707106781187, -0.5 }, { -0.707106781187, 0.000000000000, -0.5 }, { 0.000000000000, -0.707106781187, -0.5 },
- { 0.0, 0.0, -1.0 } } ;
+ { 0.0, 0.0, -1.0 } };
int rdod_v [12][4] = { { 0, 1, 5, 2 }, { 0, 2, 6, 3 }, { 0, 3, 7, 4 }, { 0, 4, 8, 1 },
{ 5, 10, 6, 2 }, { 6, 11, 7, 3 }, { 7, 12, 8, 4 }, { 8, 9, 5, 1 },
- { 5, 9, 13, 10 }, { 6, 10, 13, 11 }, { 7, 11, 13, 12 }, { 8, 12, 13, 9 } } ;
+ { 5, 9, 13, 10 }, { 6, 10, 13, 11 }, { 7, 11, 13, 12 }, { 8, 12, 13, 9 } };
double rdod_n[12][3] = {
{ 0.353553390594, 0.353553390594, 0.5 }, { -0.353553390594, 0.353553390594, 0.5 }, { -0.353553390594, -0.353553390594, 0.5 }, { 0.353553390594, -0.353553390594, 0.5 },
{ 0.000000000000, 1.000000000000, 0.0 }, { -1.000000000000, 0.000000000000, 0.0 }, { 0.000000000000, -1.000000000000, 0.0 }, { 1.000000000000, 0.000000000000, 0.0 },
{ 0.353553390594, 0.353553390594, -0.5 }, { -0.353553390594, 0.353553390594, -0.5 }, { -0.353553390594, -0.353553390594, -0.5 }, { 0.353553390594, -0.353553390594, -0.5 }
- } ;
+ };
void FGAPIENTRY glutWireRhombicDodecahedron( void )
{
int i ;
for ( i = 0; i < 12; i++ )
{
- glBegin ( GL_LINE_LOOP ) ;
- glNormal3dv ( rdod_n[i] ) ;
- glVertex3dv ( rdod_r[rdod_v[i][0]] ) ;
- glVertex3dv ( rdod_r[rdod_v[i][1]] ) ;
- glVertex3dv ( rdod_r[rdod_v[i][2]] ) ;
- glVertex3dv ( rdod_r[rdod_v[i][3]] ) ;
- glEnd () ;
+ glBegin ( GL_LINE_LOOP );
+ glNormal3dv ( rdod_n[i] );
+ glVertex3dv ( rdod_r[rdod_v[i][0]] );
+ glVertex3dv ( rdod_r[rdod_v[i][1]] );
+ glVertex3dv ( rdod_r[rdod_v[i][2]] );
+ glVertex3dv ( rdod_r[rdod_v[i][3]] );
+ glEnd ();
}
}
{
int i ;
- glBegin ( GL_QUADS ) ;
+ glBegin ( GL_QUADS );
for ( i = 0; i < 12; i++ )
{
- glNormal3dv ( rdod_n[i] ) ;
- glVertex3dv ( rdod_r[rdod_v[i][0]] ) ;
- glVertex3dv ( rdod_r[rdod_v[i][1]] ) ;
- glVertex3dv ( rdod_r[rdod_v[i][2]] ) ;
- glVertex3dv ( rdod_r[rdod_v[i][3]] ) ;
+ glNormal3dv ( rdod_n[i] );
+ glVertex3dv ( rdod_r[rdod_v[i][0]] );
+ glVertex3dv ( rdod_r[rdod_v[i][1]] );
+ glVertex3dv ( rdod_r[rdod_v[i][2]] );
+ glVertex3dv ( rdod_r[rdod_v[i][3]] );
}
- glEnd () ;
+ glEnd ();
}
#define NUM_FACES 4
{ 0.5, -0.288675134595, -0.144337567297 },
{ 0.0, 0.577350269189, -0.144337567297 },
{ 0.0, 0.0, 0.672159013631 }
-} ;
+};
static GLint tetrahedron_i[4][3] = /* Vertex indices */
{
{ 0, 1, 2 }, { 0, 2, 3 }, { 0, 3, 1 }, { 1, 3, 2 }
-} ;
+};
static GLdouble tetrahedron_n[4][3] = /* Normals */
{
{ -0.816496580928, 0.471404520791, 0.333333333333 },
{ 0.0, -0.942809041582, 0.333333333333 },
{ 0.816496580928, 0.471404520791, 0.333333333333 }
-} ;
+};
void FGAPIENTRY glutWireSierpinskiSponge ( int num_levels, GLdouble offset[3], GLdouble scale )
{
for ( i = 0 ; i < NUM_FACES ; i++ )
{
- glBegin ( GL_LINE_LOOP ) ;
- glNormal3dv ( tetrahedron_n[i] ) ;
+ glBegin ( GL_LINE_LOOP );
+ glNormal3dv ( tetrahedron_n[i] );
for ( j = 0; j < 3; j++ )
{
- double x = offset[0] + scale * tetrahedron_v[tetrahedron_i[i][j]][0] ;
- double y = offset[1] + scale * tetrahedron_v[tetrahedron_i[i][j]][1] ;
- double z = offset[2] + scale * tetrahedron_v[tetrahedron_i[i][j]][2] ;
- glVertex3d ( x, y, z ) ;
+ double x = offset[0] + scale * tetrahedron_v[tetrahedron_i[i][j]][0];
+ double y = offset[1] + scale * tetrahedron_v[tetrahedron_i[i][j]][1];
+ double z = offset[2] + scale * tetrahedron_v[tetrahedron_i[i][j]][2];
+ glVertex3d ( x, y, z );
}
- glEnd () ;
+ glEnd ();
}
}
else
{
- GLdouble local_offset[3] ; /* Use a local variable to avoid buildup of roundoff errors */
- num_levels -- ;
+ GLdouble local_offset[3]; /* Use a local variable to avoid buildup of roundoff errors */
+ num_levels --;
scale /= 2.0 ;
- local_offset[0] = offset[0] + scale * tetrahedron_v[0][0] ;
- local_offset[1] = offset[1] + scale * tetrahedron_v[0][1] ;
- local_offset[2] = offset[2] + scale * tetrahedron_v[0][2] ;
- glutWireSierpinskiSponge ( num_levels, local_offset, scale ) ;
- local_offset[0] += scale ;
- glutWireSierpinskiSponge ( num_levels, local_offset, scale ) ;
- local_offset[0] -= 0.5 * scale ;
- local_offset[1] += 0.866025403784 * scale ;
- glutWireSierpinskiSponge ( num_levels, local_offset, scale ) ;
- local_offset[1] -= 0.577350269189 * scale ;
- local_offset[2] += 0.816496580928 * scale ;
- glutWireSierpinskiSponge ( num_levels, local_offset, scale ) ;
+ local_offset[0] = offset[0] + scale * tetrahedron_v[0][0];
+ local_offset[1] = offset[1] + scale * tetrahedron_v[0][1];
+ local_offset[2] = offset[2] + scale * tetrahedron_v[0][2];
+ glutWireSierpinskiSponge ( num_levels, local_offset, scale );
+ local_offset[0] += scale;
+ glutWireSierpinskiSponge ( num_levels, local_offset, scale );
+ local_offset[0] -= 0.5 * scale;
+ local_offset[1] += 0.866025403784 * scale;
+ glutWireSierpinskiSponge ( num_levels, local_offset, scale );
+ local_offset[1] -= 0.577350269189 * scale;
+ local_offset[2] += 0.816496580928 * scale;
+ glutWireSierpinskiSponge ( num_levels, local_offset, scale );
}
}
if ( num_levels == 0 )
{
- glBegin ( GL_TRIANGLES ) ;
+ glBegin ( GL_TRIANGLES );
for ( i = 0 ; i < NUM_FACES ; i++ )
{
- glNormal3dv ( tetrahedron_n[i] ) ;
+ glNormal3dv ( tetrahedron_n[i] );
for ( j = 0; j < 3; j++ )
{
- double x = offset[0] + scale * tetrahedron_v[tetrahedron_i[i][j]][0] ;
- double y = offset[1] + scale * tetrahedron_v[tetrahedron_i[i][j]][1] ;
- double z = offset[2] + scale * tetrahedron_v[tetrahedron_i[i][j]][2] ;
- glVertex3d ( x, y, z ) ;
+ double x = offset[0] + scale * tetrahedron_v[tetrahedron_i[i][j]][0];
+ double y = offset[1] + scale * tetrahedron_v[tetrahedron_i[i][j]][1];
+ double z = offset[2] + scale * tetrahedron_v[tetrahedron_i[i][j]][2];
+ glVertex3d ( x, y, z );
}
}
- glEnd () ;
+ glEnd ();
}
else
{
- GLdouble local_offset[3] ; /* Use a local variable to avoid buildup of roundoff errors */
- num_levels -- ;
+ GLdouble local_offset[3]; /* Use a local variable to avoid buildup of roundoff errors */
+ num_levels --;
scale /= 2.0 ;
- local_offset[0] = offset[0] + scale * tetrahedron_v[0][0] ;
- local_offset[1] = offset[1] + scale * tetrahedron_v[0][1] ;
- local_offset[2] = offset[2] + scale * tetrahedron_v[0][2] ;
- glutSolidSierpinskiSponge ( num_levels, local_offset, scale ) ;
- local_offset[0] += scale ;
- glutSolidSierpinskiSponge ( num_levels, local_offset, scale ) ;
- local_offset[0] -= 0.5 * scale ;
- local_offset[1] += 0.866025403784 * scale ;
- glutSolidSierpinskiSponge ( num_levels, local_offset, scale ) ;
- local_offset[1] -= 0.577350269189 * scale ;
- local_offset[2] += 0.816496580928 * scale ;
- glutSolidSierpinskiSponge ( num_levels, local_offset, scale ) ;
+ local_offset[0] = offset[0] + scale * tetrahedron_v[0][0];
+ local_offset[1] = offset[1] + scale * tetrahedron_v[0][1];
+ local_offset[2] = offset[2] + scale * tetrahedron_v[0][2];
+ glutSolidSierpinskiSponge ( num_levels, local_offset, scale );
+ local_offset[0] += scale;
+ glutSolidSierpinskiSponge ( num_levels, local_offset, scale );
+ local_offset[0] -= 0.5 * scale;
+ local_offset[1] += 0.866025403784 * scale;
+ glutSolidSierpinskiSponge ( num_levels, local_offset, scale );
+ local_offset[1] -= 0.577350269189 * scale;
+ local_offset[2] += 0.816496580928 * scale;
+ glutSolidSierpinskiSponge ( num_levels, local_offset, scale );
}
}