diff --git a/.gitignore b/.gitignore
index 79a9a7c..222af98 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,3 +16,5 @@ android/android.iml
 android/local.properties
 data/brushes
 data/thumbs
+PanoPainter.aps
+panopainter-log.txt
diff --git a/engine/canvas.cpp b/engine/canvas.cpp
index 3499ece..1a77382 100644
--- a/engine/canvas.cpp
+++ b/engine/canvas.cpp
@@ -809,27 +809,58 @@ void ui::Canvas::import_equirectangular(std::string file_path)
 
 void ui::Canvas::import_equirectangular_thread(std::string file_path)
 {
-    Texture2D tex;
-    gl_state gl;
     App::I.async_start();
+    
+    gl_state gl;
     gl.save();
     snap_history({0,1,2,3,4,5});
-    tex.load_file(file_path);
-    ui::Sphere sphere;
-    glDisable(GL_DEPTH_TEST);
-    sphere.create<64, 64>(2.f);
-    draw_objects([&](const glm::mat4& camera, const glm::mat4& proj){
-        m_sampler.bind(0);
-        glActiveTexture(GL_TEXTURE0);
-        tex.bind();
-        ShaderManager::use(ui::kShader::Texture);
-        ShaderManager::u_int(kShaderUniform::Tex, 0);
-        ShaderManager::u_mat4(kShaderUniform::MVP, proj * camera *
-            glm::eulerAngleY(glm::radians(-90.f)) * glm::scale(glm::vec3(1,-1,1)));
-        sphere.draw_fill();
-        tex.unbind();
-        m_sampler.unbind();
-    });
+
+    Image img;
+    img.load_file(file_path);
+
+    if (img.width == img.height / 6)
+    {
+        Texture2D tex;
+        static GLint indices[] = { 5, 1, 4, 0, 2, 3 };
+        static GLint formats[] = { GL_RED, GL_RG, GL_RGB, GL_RGBA };
+        static GLint iformats[] = { GL_R8, GL_RG8, GL_RGB8, GL_RGBA8 };
+        tex.create(img.width, img.width, iformats[img.comp - 1], formats[img.comp - 1]);
+        int stride = img.width * img.width * img.comp;
+        ui::Plane plane;
+        plane.create<1>(2, 2);
+        draw_objects([&](const glm::mat4& camera, const glm::mat4& proj, int i) {
+            tex.update(img.m_data.get() + indices[i] * stride);
+            m_sampler.bind(0);
+            glActiveTexture(GL_TEXTURE0);
+            tex.bind();
+            ShaderManager::use(ui::kShader::Texture);
+            ShaderManager::u_int(kShaderUniform::Tex, 0);
+            ShaderManager::u_mat4(kShaderUniform::MVP, glm::scale(glm::vec3(1, -1, 1)));
+            plane.draw_fill();
+            tex.unbind();
+            m_sampler.unbind();
+        });
+    }
+    else
+    {
+        Texture2D tex;
+        tex.load_file(file_path);
+        ui::Sphere sphere;
+        glDisable(GL_DEPTH_TEST);
+        sphere.create<64, 64>(2.f);
+        draw_objects([&](const glm::mat4& camera, const glm::mat4& proj, int i) {
+            m_sampler.bind(0);
+            glActiveTexture(GL_TEXTURE0);
+            tex.bind();
+            ShaderManager::use(ui::kShader::Texture);
+            ShaderManager::u_int(kShaderUniform::Tex, 0);
+            ShaderManager::u_mat4(kShaderUniform::MVP, proj * camera *
+                glm::eulerAngleY(glm::radians(-90.f)) * glm::scale(glm::vec3(1, -1, 1)));
+            sphere.draw_fill();
+            tex.unbind();
+            m_sampler.unbind();
+        });
+    }
     for (int i = 0; i < 6; i++)
     {
         m_layers[m_current_layer_idx].m_dirty_box[i] = glm::vec4(0, 0, m_width, m_height);
@@ -1531,7 +1562,7 @@ ui::Image ui::Canvas::thumbnail_read(std::string data_path)
     return std::move(thumb);
 }
 
-void ui::Canvas::draw_objects(std::function<void(const glm::mat4& camera, const glm::mat4& proj)> observer, Layer& layer)
+void ui::Canvas::draw_objects(std::function<void(const glm::mat4& camera, const glm::mat4& proj, int i)> observer, Layer& layer)
 {
     // save viewport and clear color states
     GLint vp[4];
@@ -1550,7 +1581,7 @@ void ui::Canvas::draw_objects(std::function<void(const glm::mat4& camera, const
         glm::mat4 plane_camera = glm::lookAt(glm::vec3(0), m_plane_origin[i], m_plane_tangent[i]);
         layer.m_rtt[i].bindFramebuffer();
 
-        observer(plane_camera, proj);
+        observer(plane_camera, proj, i);
 
         layer.m_rtt[i].unbindFramebuffer();
     }
@@ -1562,7 +1593,7 @@ void ui::Canvas::draw_objects(std::function<void(const glm::mat4& camera, const
     glActiveTexture(GL_TEXTURE0);
 }
 
-void ui::Canvas::draw_objects(std::function<void(const glm::mat4& camera, const glm::mat4& proj)> observer)
+void ui::Canvas::draw_objects(std::function<void(const glm::mat4& camera, const glm::mat4& proj, int i)> observer)
 {
     draw_objects(observer, m_layers[m_current_layer_idx]);
 }
diff --git a/engine/canvas.h b/engine/canvas.h
index 0156143..d4f5218 100644
--- a/engine/canvas.h
+++ b/engine/canvas.h
@@ -145,8 +145,8 @@ public:
     ui::Image thumbnail_generate(int w, int h);
     ui::Image thumbnail_read(std::string data_path);
     void preview_generate();
-    void draw_objects(std::function<void(const glm::mat4& camera, const glm::mat4& proj)>);
-    void draw_objects(std::function<void(const glm::mat4& camera, const glm::mat4& proj)>, Layer& layer);
+    void draw_objects(std::function<void(const glm::mat4& camera, const glm::mat4& proj, int i)>);
+    void draw_objects(std::function<void(const glm::mat4& camera, const glm::mat4& proj, int i)>, Layer& layer);
     bool ray_intersect(glm::vec3 ray_origin, glm::vec3 ray_dir, glm::vec3 plane_origin,
                           glm::vec3 plane_normal, glm::vec3 plane_tangent, glm::vec3 &out_hit);
     void point_unproject(glm::vec2 loc, glm::vec4 vp, glm::mat4 camera, glm::mat4 proj,
diff --git a/libs/glm b/libs/glm
index 9f1aae0..1190ae0 160000
--- a/libs/glm
+++ b/libs/glm
@@ -1 +1 @@
-Subproject commit 9f1aae08f71d1a1939d3bb8dcb771722d836cf9f
+Subproject commit 1190ae0b0e6ab38dc4a650ce7ad79be66a7a4de1
diff --git a/libs/stb/stb b/libs/stb/stb
index 3e7f2d6..9d9f75e 160000
--- a/libs/stb/stb
+++ b/libs/stb/stb
@@ -1 +1 @@
-Subproject commit 3e7f2d6ebddfe54bd9a9491db1349513a357bfe5
+Subproject commit 9d9f75eb682dd98b34de08bb5c489c6c561c9fa6
diff --git a/libs/tinyxml2 b/libs/tinyxml2
index 5b733ff..e1b5043 160000
--- a/libs/tinyxml2
+++ b/libs/tinyxml2
@@ -1 +1 @@
-Subproject commit 5b733ff4810049d24085c87d989c1d06dcdf8f82
+Subproject commit e1b50439c94181d3c271cbc5a9b3445640f8f4e9