func init() {
//
right[0], front[1], top[2] = 1.0, 1.0, 1.0
matrix[3][3] = 1.
for l := 0; l < MaxL; l++ {
lightSource[l] = vect.New()
}
w := 2.0 * math.Pi / float64(nLamp)
sin[0], cos[0] = C.GLdouble(0.0), C.GLdouble(1.0)
sin[nLamp], cos[nLamp] = sin[0], cos[0]
for g := 1; g < nLamp; g++ {
sin[g] = C.GLdouble(math.Sin(float64(g) * w))
cos[g] = C.GLdouble(math.Cos(float64(g) * w))
}
sin[nLamp+1], sin[1] = cos[nLamp+1], cos[1]
// C.glDepthFunc (C.GL_LESS) // default
C.glEnable(C.GL_DEPTH_TEST)
C.glShadeModel(C.GL_SMOOTH)
for i := 0; i < 3; i++ {
lmAmb[i] = C.GLfloat(0.2)
} // default: 0.2
lmAmb[3] = C.GLfloat(1.0) // default: 1.0
C.glLightModelfv(C.GL_LIGHT_MODEL_AMBIENT, &lmAmb[0])
for i := 0; i < 3; i++ {
mAmbi[i] = C.GLfloat(0.2)
} // default: 0.2
mAmbi[3] = C.GLfloat(1.0) // default: 1.0
// C.glLightModelfv (C.GL_LIGHT_MODEL_TWO_SIDE, 1)
C.glMaterialfv(C.GL_FRONT_AND_BACK, C.GL_AMBIENT_AND_DIFFUSE, &mAmbi[0])
for i := 0; i < 3; i++ {
mDiff[i] = C.GLfloat(0.8)
} // default: 0.8
mDiff[3] = C.GLfloat(1.0) // default: 1.0
w = 1.
C.glClearDepth(C.GLclampd(w))
// C.glMaterialfv (C.GL_FRONT_AND_BACK, C.GL_DIFFUSE, mDiff)
// C.glColorMaterial (C.GL_FRONT_AND_BACK, C.GL_DIFFUSE)
// C.glColorMaterial (C.GL_FRONT, C.GL_AMBIENT)
C.glColorMaterial(C.GL_FRONT_AND_BACK, C.GL_AMBIENT_AND_DIFFUSE)
C.glEnable(C.GL_COLOR_MATERIAL)
C.glEnable(C.GL_LIGHTING)
initialize()
}
// DepthRange calls glDepthRange
func DepthRange(zNear, zFar float64) {
C.glDepthRange(C.GLclampd(zNear), C.GLclampd(zFar))
}
//void glDepthRange (GLclampd zNear, GLclampd zFar)
func DepthRange(zNear GLclampd, zFar GLclampd) {
C.glDepthRange(C.GLclampd(zNear), C.GLclampd(zFar))
}
//void glClearDepth (GLclampd depth)
func ClearDepth(depth GLclampd) {
C.glClearDepth(C.GLclampd(depth))
}