func Write(f Figure, a uint, V, N []*vect.Imp, c col.Colour) {
//
switch f {
case UNDEF:
nn = 0 // forces glEnd / glBegin
println("gl.Write UNDEF")
return
case LIGHT:
lightVis = true
if a >= MaxL {
ker.Stop(pack, 2)
}
InitLight(a, V[0], N[0], c)
nn = 0
println("gl.Write LIGHT")
return
}
if f != fig || a != nn || nn == 0 {
fig = f
nn = a
C.glEnd()
C.glBegin(C.GLenum(f))
}
C.glColor3ub(C.GLubyte(c.R), C.GLubyte(c.G), C.GLubyte(c.B))
for i := uint(0); i < a; i++ {
println("gl.Write", i)
vector2yyy(V[i])
C.glVertex3dv(&yyy[0])
vector2yyy(N[i])
C.glNormal3dv(&yyy[0])
}
/*
tmp:= vect.New ()
C.glEnd ()
for i:= uint(0); i < a; i++ {
C.glBegin (LINES)
C.glColor3ub (C.GLubyte(0), C.GLubyte(255), C.GLubyte(0))
vector2yyy (V[i]); C.glVertex3dv (&yyy[0])
tmp.Copy (V[i])
tmp.Inc (N[i])
vector2yyy (tmp); C.glVertex3dv (&yyy[0])
C.glEnd ()
}
nn = 0
C.glBegin (POINTS)
*/
}
//void glNormal3dv (const float64 *v)
func Normal3dv(v *[3]float64) {
C.glNormal3dv((*C.GLdouble)(&v[0]))
}
//void glNormal3dv (const float64 *v)
func Normal3dv(v []float64) {
if len(v) != 3 {
panic(ErrorInputSize)
}
C.glNormal3dv((*C.GLdouble)(&v[0]))
}