func (r *Receiver) PanView(pos, delta glm.Vec2d) {
theta := delta.Mul(r.Constants.PanSensitivity * r.Constants.Fov)
turnV := glm.QuatRotated(theta[1], gtk.ToVec3D(r.UIState.TiltAxis))
turnH := glm.QuatRotated(-theta[0], gtk.ToVec3D(r.UIState.PanAxis))
r.UIState.Orientation = turnH.Mul(r.UIState.Orientation).Mul(turnV)
}
func (c *BezierCurve) quadApprox(p1, c1, c2, p2 mathgl.Vec2d) (v mathgl.Vec2d, ok bool) {
//P2 - 3·C2 + 3·C1 - P1
d01 := p2.Sub(c2.Mul(3)).Add(c1.Mul(3)).Sub(p1).Len() / 2
if d01 <= gQuadraticApproxPrecision {
// (3·C2 - P2 + 3·C1 - P1)/4
return c2.Mul(3).Sub(p2).Add(c1.Mul(3)).Sub(p1).Mul(1 / 4.), true
}
return v, false
}
func (r *Receiver) PanView(pos, delta glm.Vec2d) {
theta := delta.Mul(r.Constants.PlayerFOV * r.Constants.PlayerPanSensitivity)
turnV := glm.QuatRotated(theta[1], gtk.ToVec3D(r.Player.TiltAxis))
turnH := glm.QuatRotated(-theta[0], gtk.ToVec3D(r.Player.PanAxis))
r.Player.OrientationH = turnH.Mul(r.Player.OrientationH)
r.Player.Orientation = turnH.Mul(r.Player.Orientation).Mul(turnV)
r.Invalid = true
}
func mid(v1 mathgl.Vec2d, v2 mathgl.Vec2d) mathgl.Vec2d {
return v1.Add(v2).Mul(1 / 2.)
}