Revert "[3.0] Added test cases and removed dead code"

[platform/core/uifw/dali-toolkit.git] / dali-toolkit / internal / controls / model3d-view / model3d-view-impl.cpp

diff --git a/dali-toolkit/internal/controls/model3d-view/model3d-view-impl.cpp b/dali-toolkit/internal/controls/model3d-view/model3d-view-impl.cpp
index be409da..d395fb2 100644 (file)
--- a/dali-toolkit/internal/controls/model3d-view/model3d-view-impl.cpp
+++ b/dali-toolkit/internal/controls/model3d-view/model3d-view-impl.cpp
@@ -247,6 +247,21 @@ const char* NRMMAP_FRAGMENT_SHADER = MAKE_SHADER(
 
 using namespace Dali;
 
+void LookAt(Matrix& result, const Vector3& eye, const Vector3& target, const Vector3& up)
+{
+  Vector3 vZ = target - eye;
+  vZ.Normalize();
+
+  Vector3 vX = up.Cross(vZ);
+  vX.Normalize();
+
+  Vector3 vY = vZ.Cross(vX);
+  vY.Normalize();
+
+  result.SetInverseTransformComponents(vX, vY, vZ, eye);
+}
+
+
 Model3dView::Model3dView()
   : Control( ControlBehaviour( ACTOR_BEHAVIOUR_NONE ) )
 {