diff --git a/android/quest/src/main/cpp/oculus_vr.cpp b/android/quest/src/main/cpp/oculus_vr.cpp
index f1dc7a3..c236b1c 100644
--- a/android/quest/src/main/cpp/oculus_vr.cpp
+++ b/android/quest/src/main/cpp/oculus_vr.cpp
@@ -24,7 +24,8 @@ struct QuestController : public VRController
         vrapi_GetInputTrackingState(ovr_context, id, predictedDisplayTime, &tracking);
         glm::vec3 c_pos = glm::make_vec3((float*)&tracking.HeadPose.Pose.Position) - head_pos;
         auto c_rot_ovr = ovrMatrix4f_CreateFromQuaternion(&tracking.HeadPose.Pose.Orientation);
-        glm::mat4 c_rot = glm::make_mat4((float*)&c_rot_ovr);
+        auto c_rot_ovr_tp = ovrMatrix4f_Transpose(&c_rot_ovr);
+        glm::mat4 c_rot = glm::make_mat4((float*)&c_rot_ovr_tp);
         m_mat = glm::translate(c_pos) * c_rot;
 
         // update controllers
diff --git a/data/layout.xml b/data/layout.xml
index 7fb14f3..31a3e6c 100644
--- a/data/layout.xml
+++ b/data/layout.xml
@@ -1746,29 +1746,30 @@ Here's a list of what's available in this release.
         </border>
 
         <scroll id="drop-left" color="0 0 0 .6" min-width="10" mouse-capture="true" rtl="ltr"/>
-        
-        <!--quick bar-->
-        <node justify="center" align="center" dir="col" rtl="ltr">
-          <panel-quick id="panel-quick"/>
-          <node height="0" grow="1" max-height="50"/>
-        </node>
 
-        <node id="floatings" color="0 0 0 1" width="1" grow="1" height="100%" rtl="ltr"/>
+        <node dir="col" width="1" grow="1">
+          <!-- timeline -->
+          <node width="100%" shrink="1" dir="col" rtl="ltr">
+            <border color=".3 .3 .3 .4" height="50" width="100%" pad="10" dir="row" mouse-capture="true">
+              <text text="Timeline: " margin="8 10 0 0"/>
+              <slider-h id="frames-slider" width="1" grow="1" margin="0 10 0 0"></slider-h>
+              <node width="30" margin="5 10 0 10">
+                <text id="timeline-frame" text="00" font-size="30"/>
+              </node>
+            </border>
+          </node>
+          <node dir="row" height="200" grow="1">
+            <!--quick bar-->
+            <node justify="center" align="center" dir="col" rtl="ltr">
+              <panel-quick id="panel-quick"/>
+              <node height="0" grow="1" max-height="50"/>
+            </node>
+            <!--floating area-->
+            <node id="floatings" color="0 0 0 1" width="1" grow="1" height="100%" rtl="ltr"/>
+          </node>
+        </node>
 
         <scroll id="drop-right" color="0 0 0 .6" min-width="10" mouse-capture="true" rtl="ltr"/>
-
-        <!-- timeline -->
-        <!--
-        <node height="100%" width="1" grow="1" dir="col" justify="flex-start" rtl="ltr">
-          <border color=".3 .3 .3 .4" height="50" width="100%" pad="10" dir="row">
-            <text text="Timeline: " margin="8 10 0 0"/>
-            <slider-h id="frames-slider" width="1" grow="1" margin="0 10 0 0"></slider-h>
-            <node width="30" margin="5 10 0 10">
-              <text id="timeline-frame" text="00" font-size="30"/>
-            </node>
-          </border>
-        </node>
-        -->
         
         <!--<node height="100%" width="1" grow="1" dir="col" align="center" justify="flex-start" rtl="ltr">
           <border border-color="0 0 0 0" thickness="2" color=".2 .2 .2 .6" pad="10" dir="row" margin="2 0 0 0">
diff --git a/src/app_layout.cpp b/src/app_layout.cpp
index bfccea2..d4f256f 100644
--- a/src/app_layout.cpp
+++ b/src/app_layout.cpp
@@ -210,34 +210,29 @@ void App::init_sidebar()
     layers->on_layer_opacity_changed = [this](Node*, int idx, float value) {
         canvas->m_canvas->m_layers[canvas->m_canvas->m_order[idx]]->m_opacity = value;
         canvas->m_canvas->m_unsaved = true;
-        canvas->m_canvas->draw_merge();
         title_update();
     };
 
     layers->on_layer_visibility_changed = [this](Node*, int idx, bool visible) {
         canvas->m_canvas->m_layers[canvas->m_canvas->m_order[idx]]->m_visible = visible;
         canvas->m_canvas->m_unsaved = true;
-        canvas->m_canvas->draw_merge();
         title_update();
     };
     
     layers->on_layer_alpha_lock_changed = [this](Node*, int idx, bool locked) {
         canvas->m_canvas->m_layers[canvas->m_canvas->m_order[idx]]->m_alpha_locked = locked;
         canvas->m_canvas->m_unsaved = true;
-        canvas->m_canvas->draw_merge();
         title_update();
     };
     
     layers->on_layer_blend_mode_changed = [this](Node*, int idx, int mode) {
         canvas->m_canvas->m_layers[canvas->m_canvas->m_order[idx]]->m_blend_mode = mode;
         canvas->m_canvas->m_unsaved = true;
-        canvas->m_canvas->draw_merge();
         title_update();
     };
 
     layers->on_layer_highlight_changed = [this](Node*, int idx, bool highlight) {
         canvas->m_canvas->m_layers[canvas->m_canvas->m_order[idx]]->m_hightlight = highlight;
-        canvas->m_canvas->draw_merge();
     };
     if (auto* button = layout[main_id]->find<NodeButtonCustom>("btn-stroke"))
     {
diff --git a/src/app_vr.cpp b/src/app_vr.cpp
index d6ef9de..7c85858 100644
--- a/src/app_vr.cpp
+++ b/src/app_vr.cpp
@@ -1,12 +1,21 @@
 #include "pch.h"
 #include "app.h"
 #include "util.h"
+#include "shape.h"
 
 #ifdef _WIN32
 bool win32_vr_start();
 void win32_vr_stop();
 #endif
 
+bool trigger_down = false;
+cbuffer<glm::vec3> controller_points(10);
+glm::vec3 controller_last_point;
+const VRController* down_controller = nullptr;
+glm::vec2 controller_cursor;
+bool ui_inside = false;
+bool ui_capture = false;
+Sphere controller_ray;
 
 bool App::vr_start()
 {
@@ -41,12 +50,6 @@ void App::vr_draw_ui()
     uirtt.unbindFramebuffer();
 }
 
-bool trigger_down = false;
-cbuffer<glm::vec3> controller_points(10);
-glm::vec3 controller_last_point;
-const VRController* down_controller = nullptr;
-glm::vec2 controller_cursor;
-bool ui_inside = false;
 void App::vr_update(float dt)
 {
     glm::vec3 hit;
@@ -56,27 +59,25 @@ void App::vr_update(float dt)
     auto r = m * glm::vec3(1, 0, 0);
     auto n = m * glm::vec3(0, 0, 1);
     auto u = m * glm::vec3(0, 1, 0);
-    if (ray_intersect({ 0, 0, 0 }, vr_controllers[0].get_pos_n(), o, n, r, hit, t))
+    auto co = vr_controllers[0].get_pos();
+    auto cd = co + glm::mat3(vr_controllers[0].m_mat) * glm::vec3(0, 0, -1);
+    ui_inside = false;
+    if (ray_intersect(co, cd, o, n, r, hit, t))
     {
         glm::mat4 plane_camera = glm::lookAt(o, n, u);
-        glm::vec4 plane_local = plane_camera * glm::vec4(hit, 1);
-        if (glm::all(glm::lessThanEqual(glm::abs(xy(plane_local)), glm::vec2(1.5f))))
+        glm::vec4 plane_local = (plane_camera * glm::vec4(hit, 1)) * 2.f;
+        if (glm::all(glm::lessThanEqual(glm::abs(xy(plane_local)), glm::vec2(1.0f))))
         {
             controller_cursor.x = -(plane_local.x * 0.5f - 0.5f) * width;
             controller_cursor.y = height - (plane_local.y * 0.5f + 0.5f) * height - 1;
-            async_start();
-            mouse_move(controller_cursor.x, controller_cursor.y, 1.f, kEventSource::Mouse, false);
-            async_end();
-            ui_inside = true;
+            if (!down_controller && ui_visible)
+            {
+                async_start();
+                mouse_move(controller_cursor.x, controller_cursor.y, 1.f, kEventSource::Mouse, false);
+                async_end();
+                ui_inside = true;
+            }
         }
-        else
-        {
-            ui_inside = false;
-        }
-    }
-    else
-    {
-        ui_inside = false;
     }
 
     if (down_controller)
@@ -98,22 +99,40 @@ void App::vr_analog(const VRController& c, VRController::kButton b, VRController
 {
     if (b == VRController::kButton::Trigger)
     {
-        if (a == VRController::kAction::Press)
+        if (!down_controller && (ui_inside || ui_capture) && ui_visible)
         {
-            glm::vec3 pos = c.get_pos_n() * 800.f;
             async_start();
-            Canvas::I->stroke_start(pos, force.x);
+            if (a == VRController::kAction::Press)
+            {
+                mouse_down(0, controller_cursor.x, controller_cursor.y, 1.f, kEventSource::Mouse, false);
+                ui_capture = true;
+            }
+            else
+            {
+                mouse_up(0, controller_cursor.x, controller_cursor.y, kEventSource::Mouse, false);
+                ui_capture = false;
+            }
             async_end();
-            controller_last_point = pos;
-            controller_points.clear();
-            down_controller = &c;
         }
-        if (a == VRController::kAction::Release)
+        else
         {
-            down_controller = nullptr;
-            async_start();
-            Canvas::I->stroke_end();
-            async_end();
+            if (a == VRController::kAction::Press)
+            {
+                glm::vec3 pos = c.get_pos_n() * 800.f;
+                async_start();
+                Canvas::I->stroke_start(pos, force.x);
+                async_end();
+                controller_last_point = pos;
+                controller_points.clear();
+                down_controller = &c;
+            }
+            if (a == VRController::kAction::Release)
+            {
+                down_controller = nullptr;
+                async_start();
+                Canvas::I->stroke_end();
+                async_end();
+            }
         }
     }
 }
@@ -129,15 +148,6 @@ void App::vr_digital(const VRController& c, VRController::kButton b, VRControlle
             toggle_ui();
         }
     }
-    if (b == VRController::kButton::A)
-    {
-        async_start();
-        if (a == VRController::kAction::Press)
-            mouse_down(0, controller_cursor.x, controller_cursor.y, 1.f, kEventSource::Mouse, false);
-        else
-            mouse_up(0, controller_cursor.x, controller_cursor.y, kEventSource::Mouse, false);
-        async_end();
-    }
 }
 
 void App::vr_draw(const glm::mat4& proj, const glm::mat4& camera, const glm::mat4& pose)
@@ -299,7 +309,7 @@ void App::vr_draw(const glm::mat4& proj, const glm::mat4& camera, const glm::mat
         }
     }
 
-    float tan_fov = glm::tan(glm::radians(canvas->m_canvas->m_cam_fov / 2.f));
+    float tan_fov = glm::tan(glm::radians(canvas->m_canvas->m_cam_fov / 2.f)) * 0.5f;
     glm::vec3 aspect = { (float)uirtt.getWidth() / (float)uirtt.getHeight(), 1.f, 1.f };
 
     // draw the frame
@@ -419,22 +429,22 @@ void App::vr_draw(const glm::mat4& proj, const glm::mat4& camera, const glm::mat
         tex.unbind();
     }
 
-/*
-    for (auto& mode : *m_canvas->m_mode)
+    glm::mat4 ortho_proj(1);
+
+    for (auto& mode : *canvas->m_canvas->m_mode)
         mode->on_Draw(ortho_proj, proj, camera);
     
     glDisable(GL_DEPTH_TEST);
-    if (m_canvas->m_smask_active)
+    if (canvas->m_canvas->m_smask_active)
     {
-        m_canvas->modes[(int)kCanvasMode::MaskFree][0]->on_Draw(ortho_proj, proj, camera);
-        m_canvas->modes[(int)kCanvasMode::MaskLine][0]->on_Draw(ortho_proj, proj, camera);
+        canvas->m_canvas->modes[(int)kCanvasMode::MaskFree][0]->on_Draw(ortho_proj, proj, camera);
+        canvas->m_canvas->modes[(int)kCanvasMode::MaskLine][0]->on_Draw(ortho_proj, proj, camera);
     }
     
     // keep drawing the grids
-    if (m_canvas->m_state != kCanvasMode::Grid)
+    if (canvas->m_canvas->m_current_mode != kCanvasMode::Grid)
         for (auto& mode : Canvas::modes[(int)kCanvasMode::Grid])
             mode->on_Draw(ortho_proj, proj, camera);
-*/
 
     blend ? glEnable(GL_BLEND) : glDisable(GL_BLEND);
     depth ? glEnable(GL_DEPTH_TEST) : glDisable(GL_DEPTH_TEST);
diff --git a/src/canvas.cpp b/src/canvas.cpp
index fb81030..7ecf87b 100644
--- a/src/canvas.cpp
+++ b/src/canvas.cpp
@@ -143,13 +143,11 @@ void Canvas::clear(const glm::vec4& c/*={0,0,0,1}*/)
     snap_history({ 0, 1, 2, 3, 4, 5 });
     m_layers[m_current_layer_idx]->clear(c);
     m_unsaved = true;
-    draw_merge();
 }
 void Canvas::clear_all()
 {
     for (auto& l : m_layers)
         l->clear({0, 0, 0, 0});
-    draw_merge();
 }
 void Canvas::snap_history(const std::vector<int>& planes)
 {
@@ -630,8 +628,6 @@ void Canvas::stroke_draw()
         stroke_commit();
         m_current_stroke = nullptr;
     }
-
-    draw_merge(merge_faces);
 }
 bool Canvas::point_trace(glm::vec2 loc, glm::vec3& ray_origin, glm::vec3& ray_dir,
     glm::vec3& hit_pos, glm::vec2& fb_pos, glm::vec3& hit_normal, int& out_plane_id)
@@ -897,13 +893,10 @@ void Canvas::stroke_commit()
     action->m_canvas = this;
     //action->m_stroke = std::move(m_current_stroke);
     ActionManager::add(action);
-
-    draw_merge();
 }
 
 void Canvas::draw_merge(std::array<bool, 6> faces /*= SIXPLETTE(false)*/)
 {
-    return;
     gl_state gl;
     gl.save();
     glViewport(0, 0, m_width, m_height);
@@ -1237,7 +1230,6 @@ void Canvas::layer_add(std::string name)
     m_layers.back()->create(m_width, m_height, name);
     m_order.push_back(idx);
     m_current_layer_idx = idx;
-    draw_merge();
 }
 void Canvas::layer_remove(int idx) // m_order index
 {
@@ -1249,12 +1241,10 @@ void Canvas::layer_remove(int idx) // m_order index
     m_layers.erase(m_layers.begin() + n);
     m_order.erase(m_order.begin() + idx);
     m_current_layer_idx = m_order[std::min<int>((int)m_layers.size() - 1, idx)];
-    draw_merge();
 }
 void Canvas::layer_order(int idx, int pos) // m_order index
 {
     std::swap(m_order[idx], m_order[pos]);
-    draw_merge();
 }
 void Canvas::layer_merge(int source_idx, int dest_idx) // m_layer index
 {
@@ -1347,7 +1337,6 @@ void Canvas::layer_merge(int source_idx, int dest_idx) // m_layer index
     action->m_stroke = std::move(m_current_stroke);
     ActionManager::add(action);
 */
-    draw_merge();
 }
 void Canvas::resize(int width, int height)
 {
@@ -1367,12 +1356,12 @@ void Canvas::resize(int width, int height)
 //#endif
         m_tex2[i].create(width, height, GL_RGBA8);
     }
-    m_layers_merge.resize(width, height);
     for (auto& l : m_layers)
         l->resize(width, height);
     m_smask.create(width, height, "mask");
-    //m_merge_rtt.create(width, height);
-    //m_merge_tex.create(width, height);
+    m_layers_merge.resize(width, height);
+    m_merge_rtt.create(width, height);
+    m_merge_tex.create(width, height);
     m_unsaved = true;
 }
 
@@ -1385,13 +1374,13 @@ void Canvas::destroy()
         m_tex[i].destroy();
         m_tex2[i].destroy();
     }
-    m_layers_merge.destroy();
     for (auto& l : m_layers)
         l->destroy();
     m_smask.destroy();
     m_mixer.destroy();
-    //m_merge_rtt.destroy();
-    //m_merge_tex.destroy();
+    m_layers_merge.destroy();
+    m_merge_rtt.destroy();
+    m_merge_tex.destroy();
 }
 
 bool Canvas::create(int width, int height)
@@ -1432,15 +1421,14 @@ bool Canvas::create(int width, int height)
     m_brush_shape.create();
     m_mesh.create();
     m_brush_mix.create(8, 8);
-    m_layers_merge.create(width, height, "merge");
     for (auto& l : m_layers)
         l->create(width, height, "");
     m_smask.create(width, height, "mask");
     //m_smask.clear({1, 1, 1, 1});
-    //m_merge_rtt.create(width, height);
-    //m_merge_tex.create(width, height);
+    m_layers_merge.create(width, height, "merge");
+    m_merge_rtt.create(width, height);
+    m_merge_tex.create(width, height);
     m_unsaved = true;
-    draw_merge();
     return true;
 }
 
@@ -1871,6 +1859,8 @@ void Canvas::export_depth_thread(std::string file_name)
     gl_state gl;
     gl.save();
 
+    draw_merge();
+
     glEnable(GL_BLEND);
     glDisable(GL_DEPTH_TEST);
 
diff --git a/src/canvas_modes.cpp b/src/canvas_modes.cpp
index cac54e2..f800a84 100644
--- a/src/canvas_modes.cpp
+++ b/src/canvas_modes.cpp
@@ -1339,7 +1339,6 @@ void CanvasModeTransform::leave(kCanvasMode next)
     layer->optimize();
     //auto m = static_cast<CanvasModeMaskFree*>(Canvas::I->modes[(int)kCanvasMode::MaskFree][0]);
     //m->clear();
-    Canvas::I->draw_merge();
 }
 
 void CanvasModeTransform::on_Draw(const glm::mat4& ortho, const glm::mat4& proj, const glm::mat4& camera)