func (me *Camera) init() {
me.Cull.Frustum = true
me.SetScene(-1)
me.Perspective = Options.Cameras.PerspectiveDefaults
unum.Mat4Identities(&me.thrApp.matProj, &me.thrPrep.matProj)
me.Controller.init()
}
func (me *Controller) init() {
me.Params = Options.Cameras.DefaultControllerParams
me.dir, me.UpVec, me.autoUpdate = unum.Vec3{0, 0, -1}, unum.Vec3{0, 1, 0}, true
me.UpAxis = me.UpVec
unum.Mat4Identities(&me.thrPrep.mat, &me.thrApp.mat)
htarget := &unum.Vec3{X: me.dir.X, Y: 0, Z: me.dir.Z}
htarget.Normalize()
if htarget.Z >= 0 {
if htarget.X >= 0 {
me.hAngle = 360 - unum.RadToDeg(math.Asin(htarget.Z))
} else {
me.hAngle = 180 + unum.RadToDeg(math.Asin(htarget.Z))
}
} else {
if htarget.X >= 0 {
me.hAngle = unum.RadToDeg(math.Asin(-htarget.Z))
} else {
me.hAngle = 90 + unum.RadToDeg(math.Asin(-htarget.Z))
}
}
me.vAngle = -unum.RadToDeg(math.Asin(me.dir.Y))
me.applyRotation()
me.applyTranslation()
}