diff --git a/src/citra/config.cpp b/src/citra/config.cpp
index 1ed5be004..20e0bddbf 100644
--- a/src/citra/config.cpp
+++ b/src/citra/config.cpp
@@ -127,9 +127,15 @@ void Config::ReadValues() {
     Settings::values.frame_limit =
         static_cast<u16>(sdl2_config->GetInteger("Renderer", "frame_limit", 100));
 
-    Settings::values.toggle_3d = sdl2_config->GetBoolean("Renderer", "toggle_3d", false);
+    Settings::values.render_3d = static_cast<Settings::StereoRenderOption>(
+        sdl2_config->GetInteger("Renderer", "render_3d", 0));
     Settings::values.factor_3d =
         static_cast<u8>(sdl2_config->GetInteger("Renderer", "factor_3d", 0));
+    Settings::values.pp_shader_name = sdl2_config->GetString(
+        "Renderer", "pp_shader_name",
+        (Settings::values.render_3d == Settings::StereoRenderOption::Anaglyph) ? "dubois (builtin)"
+                                                                               : "none (builtin)");
+    Settings::values.filter_mode = sdl2_config->GetBoolean("Renderer", "filter_mode", true);
 
     Settings::values.bg_red = static_cast<float>(sdl2_config->GetReal("Renderer", "bg_red", 0.0));
     Settings::values.bg_green =
diff --git a/src/citra/default_ini.h b/src/citra/default_ini.h
index 37c12a374..bd8681c8b 100644
--- a/src/citra/default_ini.h
+++ b/src/citra/default_ini.h
@@ -139,14 +139,24 @@ bg_red =
 bg_blue =
 bg_green =
 
-# Toggles Stereoscopic 3D
-# 0 (default): Off, 1: On
-toggle_3d =
+# Whether and how Stereoscopic 3D should be rendered
+# 0 (default): Off, 1: Side by Side, 2: Anaglyph
+render_3d =
 
 # Change 3D Intensity
 # 0 - 100: Intensity. 0 (default)
 factor_3d =
 
+# The name of the post processing shader to apply.
+# Loaded from shaders if render_3d is off or side by side.
+# Loaded from shaders/anaglyph if render_3d is anaglyph
+pp_shader_name =
+
+# Whether to enable linear filtering or not
+# This is required for some shaders to work correctly
+# 0: Nearest, 1 (default): Linear
+filter_mode =
+
 [Layout]
 # Layout for the screen inside the render window.
 # 0 (default): Default Top Bottom Screen, 1: Single Screen Only, 2: Large Screen Small Screen, 3: Side by Side
diff --git a/src/citra_qt/configuration/config.cpp b/src/citra_qt/configuration/config.cpp
index 168fab028..f4d2f5a72 100644
--- a/src/citra_qt/configuration/config.cpp
+++ b/src/citra_qt/configuration/config.cpp
@@ -175,8 +175,17 @@ void Config::ReadValues() {
     qt_config->endGroup();
 
     qt_config->beginGroup("Layout");
-    Settings::values.toggle_3d = ReadSetting("toggle_3d", false).toBool();
+    Settings::values.render_3d =
+        static_cast<Settings::StereoRenderOption>(ReadSetting("render_3d", 0).toInt());
     Settings::values.factor_3d = ReadSetting("factor_3d", 0).toInt();
+    Settings::values.pp_shader_name =
+        ReadSetting("pp_shader_name",
+                    (Settings::values.render_3d == Settings::StereoRenderOption::Anaglyph)
+                        ? "dubois (builtin)"
+                        : "none (builtin)")
+            .toString()
+            .toStdString();
+    Settings::values.filter_mode = ReadSetting("filter_mode", true).toBool();
     Settings::values.layout_option =
         static_cast<Settings::LayoutOption>(ReadSetting("layout_option").toInt());
     Settings::values.swap_screen = ReadSetting("swap_screen", false).toBool();
@@ -465,8 +474,13 @@ void Config::SaveValues() {
     qt_config->endGroup();
 
     qt_config->beginGroup("Layout");
-    WriteSetting("toggle_3d", Settings::values.toggle_3d, false);
+    WriteSetting("render_3d", static_cast<int>(Settings::values.render_3d), 0);
     WriteSetting("factor_3d", Settings::values.factor_3d.load(), 0);
+    WriteSetting("pp_shader_name", QString::fromStdString(Settings::values.pp_shader_name),
+                 (Settings::values.render_3d == Settings::StereoRenderOption::Anaglyph)
+                     ? "dubois (builtin)"
+                     : "none (builtin)");
+    WriteSetting("filter_mode", Settings::values.filter_mode, true);
     WriteSetting("layout_option", static_cast<int>(Settings::values.layout_option));
     WriteSetting("swap_screen", Settings::values.swap_screen, false);
     WriteSetting("custom_layout", Settings::values.custom_layout, false);
diff --git a/src/citra_qt/configuration/configure_graphics.cpp b/src/citra_qt/configuration/configure_graphics.cpp
index 0a1a0163d..d6ef158b0 100644
--- a/src/citra_qt/configuration/configure_graphics.cpp
+++ b/src/citra_qt/configuration/configure_graphics.cpp
@@ -10,6 +10,7 @@
 #include "core/core.h"
 #include "core/settings.h"
 #include "ui_configure_graphics.h"
+#include "video_core/renderer_opengl/post_processing_opengl.h"
 
 ConfigureGraphics::ConfigureGraphics(QWidget* parent)
     : QWidget(parent), ui(new Ui::ConfigureGraphics) {
@@ -37,6 +38,14 @@ ConfigureGraphics::ConfigureGraphics(QWidget* parent)
         }
     });
 #endif
+
+    connect(ui->render_3d_combobox,
+            static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this,
+            [this](int currentIndex) {
+                updateShaders(static_cast<Settings::StereoRenderOption>(currentIndex) ==
+                              Settings::StereoRenderOption::Anaglyph);
+            });
+
     connect(ui->bg_button, &QPushButton::clicked, this, [this] {
         const QColor new_bg_color = QColorDialog::getColor(bg_color);
         if (!new_bg_color.isValid()) {
@@ -62,8 +71,10 @@ void ConfigureGraphics::SetConfiguration() {
     ui->toggle_frame_limit->setChecked(Settings::values.use_frame_limit);
     ui->frame_limit->setEnabled(ui->toggle_frame_limit->isChecked());
     ui->frame_limit->setValue(Settings::values.frame_limit);
+    ui->render_3d_combobox->setCurrentIndex(static_cast<int>(Settings::values.render_3d));
     ui->factor_3d->setValue(Settings::values.factor_3d);
-    ui->toggle_3d->setChecked(Settings::values.toggle_3d);
+    updateShaders(Settings::values.render_3d == Settings::StereoRenderOption::Anaglyph);
+    ui->toggle_linear_filter->setChecked(Settings::values.filter_mode);
     ui->layout_combobox->setCurrentIndex(static_cast<int>(Settings::values.layout_option));
     ui->swap_screen->setChecked(Settings::values.swap_screen);
     bg_color = QColor::fromRgbF(Settings::values.bg_red, Settings::values.bg_green,
@@ -84,8 +95,12 @@ void ConfigureGraphics::ApplyConfiguration() {
         static_cast<u16>(ui->resolution_factor_combobox->currentIndex());
     Settings::values.use_frame_limit = ui->toggle_frame_limit->isChecked();
     Settings::values.frame_limit = ui->frame_limit->value();
+    Settings::values.render_3d =
+        static_cast<Settings::StereoRenderOption>(ui->render_3d_combobox->currentIndex());
     Settings::values.factor_3d = ui->factor_3d->value();
-    Settings::values.toggle_3d = ui->toggle_3d->isChecked();
+    Settings::values.pp_shader_name =
+        ui->shader_combobox->itemText(ui->shader_combobox->currentIndex()).toStdString();
+    Settings::values.filter_mode = ui->toggle_linear_filter->isChecked();
     Settings::values.layout_option =
         static_cast<Settings::LayoutOption>(ui->layout_combobox->currentIndex());
     Settings::values.swap_screen = ui->swap_screen->isChecked();
@@ -94,6 +109,23 @@ void ConfigureGraphics::ApplyConfiguration() {
     Settings::values.bg_blue = static_cast<float>(bg_color.blueF());
 }
 
+void ConfigureGraphics::updateShaders(bool anaglyph) {
+    ui->shader_combobox->clear();
+
+    if (anaglyph)
+        ui->shader_combobox->addItem("dubois (builtin)");
+    else
+        ui->shader_combobox->addItem("none (builtin)");
+
+    ui->shader_combobox->setCurrentIndex(0);
+
+    for (const auto& shader : OpenGL::GetPostProcessingShaderList(anaglyph)) {
+        ui->shader_combobox->addItem(QString::fromStdString(shader));
+        if (Settings::values.pp_shader_name == shader)
+            ui->shader_combobox->setCurrentIndex(ui->shader_combobox->count() - 1);
+    }
+}
+
 void ConfigureGraphics::RetranslateUI() {
     ui->retranslateUi(this);
 }
diff --git a/src/citra_qt/configuration/configure_graphics.h b/src/citra_qt/configuration/configure_graphics.h
index 3c8604136..f2fb3b0b0 100644
--- a/src/citra_qt/configuration/configure_graphics.h
+++ b/src/citra_qt/configuration/configure_graphics.h
@@ -24,4 +24,7 @@ public:
 
     std::unique_ptr<Ui::ConfigureGraphics> ui;
     QColor bg_color;
+
+private:
+    void updateShaders(bool anaglyph);
 };
diff --git a/src/citra_qt/configuration/configure_graphics.ui b/src/citra_qt/configuration/configure_graphics.ui
index 64f5df3cf..c31c43d81 100644
--- a/src/citra_qt/configuration/configure_graphics.ui
+++ b/src/citra_qt/configuration/configure_graphics.ui
@@ -7,7 +7,7 @@
     <x>0</x>
     <y>0</y>
     <width>400</width>
-    <height>427</height>
+    <height>603</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -212,21 +212,72 @@
         </property>
        </widget>
       </item>
+      <item>
+       <widget class="QCheckBox" name="toggle_linear_filter">
+        <property name="text">
+         <string>Enable Linear Filtering</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <layout class="QHBoxLayout" name="horizontalLayout_11">
+        <item>
+         <widget class="QLabel" name="label_2">
+          <property name="text">
+           <string>Post-Processing Shader</string>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QComboBox" name="shader_combobox"/>
+        </item>
+       </layout>
+      </item>
      </layout>
     </widget>
    </item>
    <item>
-    <widget class="QGroupBox" name="layoutBox">
+    <widget class="QGroupBox" name="groupBox">
      <property name="title">
-      <string>Layout</string>
+      <string>Stereoscopy</string>
      </property>
-     <layout class="QVBoxLayout" name="verticalLayout_3">
+     <layout class="QVBoxLayout" name="verticalLayout_4">
       <item>
        <layout class="QHBoxLayout" name="horizontalLayout_5">
         <item>
-         <widget class="QCheckBox" name="toggle_3d">
+         <widget class="QLabel" name="label_4">
           <property name="text">
-           <string>Enable Stereoscopic 3D</string>
+           <string>Stereoscopic 3D Mode</string>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QComboBox" name="render_3d_combobox">
+          <item>
+           <property name="text">
+            <string>Off</string>
+           </property>
+          </item>
+          <item>
+           <property name="text">
+            <string>Side by Side</string>
+           </property>
+          </item>
+          <item>
+           <property name="text">
+            <string>Anaglyph</string>
+           </property>
+          </item>
+         </widget>
+        </item>
+       </layout>
+      </item>
+      <item>
+       <layout class="QHBoxLayout" name="horizontalLayout_7">
+        <item>
+         <widget class="QLabel" name="label_3">
+          <property name="text">
+           <string>Depth</string>
           </property>
          </widget>
         </item>
@@ -248,6 +299,15 @@
         </item>
        </layout>
       </item>
+     </layout>
+    </widget>
+   </item>
+   <item>
+    <widget class="QGroupBox" name="layoutBox">
+     <property name="title">
+      <string>Layout</string>
+     </property>
+     <layout class="QVBoxLayout" name="verticalLayout_3">
       <item>
        <layout class="QHBoxLayout" name="horizontalLayout_4">
         <item>
diff --git a/src/common/common_paths.h b/src/common/common_paths.h
index dd58e90e7..c5d6ac67b 100644
--- a/src/common/common_paths.h
+++ b/src/common/common_paths.h
@@ -43,6 +43,7 @@
 #define LOG_DIR "log"
 #define CHEATS_DIR "cheats"
 #define DLL_DIR "external_dlls"
+#define SHADER_DIR "shaders"
 
 // Filenames
 // Files in the directory returned by GetUserPath(UserPath::LogDir)
diff --git a/src/common/file_util.cpp b/src/common/file_util.cpp
index 247104b6d..0e9a9637c 100644
--- a/src/common/file_util.cpp
+++ b/src/common/file_util.cpp
@@ -711,6 +711,7 @@ void SetUserPath(const std::string& path) {
     g_paths.emplace(UserPath::LogDir, user_path + LOG_DIR DIR_SEP);
     g_paths.emplace(UserPath::CheatsDir, user_path + CHEATS_DIR DIR_SEP);
     g_paths.emplace(UserPath::DLLDir, user_path + DLL_DIR DIR_SEP);
+    g_paths.emplace(UserPath::ShaderDir, user_path + SHADER_DIR DIR_SEP);
 }
 
 const std::string& GetUserPath(UserPath path) {
diff --git a/src/common/file_util.h b/src/common/file_util.h
index 9aba60db6..28e6a42d4 100644
--- a/src/common/file_util.h
+++ b/src/common/file_util.h
@@ -30,6 +30,7 @@ enum class UserPath {
     NANDDir,
     RootDir,
     SDMCDir,
+    ShaderDir,
     SysDataDir,
     UserDir,
 };
diff --git a/src/core/frontend/emu_window.cpp b/src/core/frontend/emu_window.cpp
index d1e9ed212..4fc285fee 100644
--- a/src/core/frontend/emu_window.cpp
+++ b/src/core/frontend/emu_window.cpp
@@ -62,7 +62,7 @@ EmuWindow::~EmuWindow() {
  */
 static bool IsWithinTouchscreen(const Layout::FramebufferLayout& layout, unsigned framebuffer_x,
                                 unsigned framebuffer_y) {
-    if (Settings::values.toggle_3d) {
+    if (Settings::values.render_3d == Settings::StereoRenderOption::SideBySide) {
         return (framebuffer_y >= layout.bottom_screen.top &&
                 framebuffer_y < layout.bottom_screen.bottom &&
                 ((framebuffer_x >= layout.bottom_screen.left / 2 &&
@@ -78,7 +78,7 @@ static bool IsWithinTouchscreen(const Layout::FramebufferLayout& layout, unsigne
 }
 
 std::tuple<unsigned, unsigned> EmuWindow::ClipToTouchScreen(unsigned new_x, unsigned new_y) const {
-    if (Settings::values.toggle_3d) {
+    if (Settings::values.render_3d == Settings::StereoRenderOption::SideBySide) {
         if (new_x >= framebuffer_layout.width / 2)
             new_x -= framebuffer_layout.width / 2;
         new_x = std::max(new_x, framebuffer_layout.bottom_screen.left / 2);
@@ -98,10 +98,11 @@ void EmuWindow::TouchPressed(unsigned framebuffer_x, unsigned framebuffer_y) {
     if (!IsWithinTouchscreen(framebuffer_layout, framebuffer_x, framebuffer_y))
         return;
 
-    if (Settings::values.toggle_3d && framebuffer_x >= framebuffer_layout.width / 2)
+    if (Settings::values.render_3d == Settings::StereoRenderOption::SideBySide &&
+        framebuffer_x >= framebuffer_layout.width / 2)
         framebuffer_x -= framebuffer_layout.width / 2;
     std::lock_guard guard(touch_state->mutex);
-    if (Settings::values.toggle_3d) {
+    if (Settings::values.render_3d == Settings::StereoRenderOption::SideBySide) {
         touch_state->touch_x =
             static_cast<float>(framebuffer_x - framebuffer_layout.bottom_screen.left / 2) /
             (framebuffer_layout.bottom_screen.right / 2 -
diff --git a/src/core/hle/kernel/shared_page.cpp b/src/core/hle/kernel/shared_page.cpp
index c0d9387db..7067aace8 100644
--- a/src/core/hle/kernel/shared_page.cpp
+++ b/src/core/hle/kernel/shared_page.cpp
@@ -58,9 +58,8 @@ Handler::Handler(Core::Timing& timing) : timing(timing) {
                                              std::bind(&Handler::UpdateTimeCallback, this, _1, _2));
     timing.ScheduleEvent(0, update_time_event);
 
-    float slidestate =
-        Settings::values.toggle_3d ? (float_le)Settings::values.factor_3d / 100 : 0.0f;
-    shared_page.sliderstate_3d = slidestate;
+    float slidestate = Settings::values.factor_3d / 100.0f;
+    shared_page.sliderstate_3d = static_cast<float_le>(slidestate);
 }
 
 /// Gets system time in 3DS format. The epoch is Jan 1900, and the unit is millisecond.
diff --git a/src/core/hle/kernel/shared_page.h b/src/core/hle/kernel/shared_page.h
index ab88c27a3..5092b4869 100644
--- a/src/core/hle/kernel/shared_page.h
+++ b/src/core/hle/kernel/shared_page.h
@@ -90,10 +90,10 @@ public:
 
     void SetWifiLinkLevel(WifiLinkLevel);
 
-    void Set3DSlider(float);
-
     void Set3DLed(u8);
 
+    void Set3DSlider(float);
+
     SharedPageDef& GetSharedPage();
 
 private:
diff --git a/src/core/settings.cpp b/src/core/settings.cpp
index d34aad32a..dcdf76263 100644
--- a/src/core/settings.cpp
+++ b/src/core/settings.cpp
@@ -6,6 +6,7 @@
 #include "audio_core/dsp_interface.h"
 #include "core/core.h"
 #include "core/gdbstub/gdbstub.h"
+#include "core/hle/kernel/shared_page.h"
 #include "core/hle/service/hid/hid.h"
 #include "core/hle/service/ir/ir_rst.h"
 #include "core/hle/service/ir/ir_user.h"
@@ -34,6 +35,8 @@ void Apply() {
     }
 
     VideoCore::g_renderer_bg_color_update_requested = true;
+    VideoCore::g_renderer_sampler_update_requested = true;
+    VideoCore::g_renderer_shader_update_requested = true;
 
     auto& system = Core::System::GetInstance();
     if (system.IsPoweredOn()) {
@@ -80,8 +83,10 @@ void LogSettings() {
     LogSetting("Renderer_VsyncEnabled", Settings::values.vsync_enabled);
     LogSetting("Renderer_UseFrameLimit", Settings::values.use_frame_limit);
     LogSetting("Renderer_FrameLimit", Settings::values.frame_limit);
-    LogSetting("Layout_Toggle3d", Settings::values.toggle_3d);
-    LogSetting("Layout_Factor3d", Settings::values.factor_3d);
+    LogSetting("Renderer_PostProcessingShader", Settings::values.pp_shader_name);
+    LogSetting("Renderer_FilterMode", Settings::values.filter_mode);
+    LogSetting("Stereoscopy_Render3d", static_cast<int>(Settings::values.render_3d));
+    LogSetting("Stereoscopy_Factor3d", Settings::values.factor_3d);
     LogSetting("Layout_LayoutOption", static_cast<int>(Settings::values.layout_option));
     LogSetting("Layout_SwapScreen", Settings::values.swap_screen);
     LogSetting("Audio_EnableDspLle", Settings::values.enable_dsp_lle);
diff --git a/src/core/settings.h b/src/core/settings.h
index ef5e48410..d18953694 100644
--- a/src/core/settings.h
+++ b/src/core/settings.h
@@ -32,6 +32,8 @@ enum class MicInputType {
     Static,
 };
 
+enum class StereoRenderOption { Off, SideBySide, Anaglyph };
+
 namespace NativeButton {
 enum Values {
     A,
@@ -163,9 +165,12 @@ struct Values {
     float bg_green;
     float bg_blue;
 
-    bool toggle_3d;
+    StereoRenderOption render_3d;
     std::atomic<u8> factor_3d;
 
+    bool filter_mode;
+    std::string pp_shader_name;
+
     // Audio
     bool enable_dsp_lle;
     bool enable_dsp_lle_multithread;
diff --git a/src/core/telemetry_session.cpp b/src/core/telemetry_session.cpp
index 6067303a5..1049dd8c8 100644
--- a/src/core/telemetry_session.cpp
+++ b/src/core/telemetry_session.cpp
@@ -195,7 +195,9 @@ void TelemetrySession::AddInitialInfo(Loader::AppLoader& app_loader) {
     AddField(Telemetry::FieldType::UserConfig, "Renderer_UseShaderJit",
              Settings::values.use_shader_jit);
     AddField(Telemetry::FieldType::UserConfig, "Renderer_UseVsync", Settings::values.vsync_enabled);
-    AddField(Telemetry::FieldType::UserConfig, "Renderer_Toggle3d", Settings::values.toggle_3d);
+    AddField(Telemetry::FieldType::UserConfig, "Renderer_FilterMode", Settings::values.filter_mode);
+    AddField(Telemetry::FieldType::UserConfig, "Renderer_Render3d",
+             static_cast<int>(Settings::values.render_3d));
     AddField(Telemetry::FieldType::UserConfig, "Renderer_Factor3d",
              Settings::values.factor_3d.load());
     AddField(Telemetry::FieldType::UserConfig, "System_IsNew3ds", Settings::values.is_new_3ds);
diff --git a/src/video_core/CMakeLists.txt b/src/video_core/CMakeLists.txt
index 77f9144fd..3129982ed 100644
--- a/src/video_core/CMakeLists.txt
+++ b/src/video_core/CMakeLists.txt
@@ -44,6 +44,8 @@ add_library(video_core STATIC
     renderer_opengl/gl_vars.cpp
     renderer_opengl/gl_vars.h
     renderer_opengl/pica_to_gl.h
+    renderer_opengl/post_processing_opengl.cpp
+    renderer_opengl/post_processing_opengl.h
     renderer_opengl/renderer_opengl.cpp
     renderer_opengl/renderer_opengl.h
     shader/debug_data.h
diff --git a/src/video_core/renderer_opengl/post_processing_opengl.cpp b/src/video_core/renderer_opengl/post_processing_opengl.cpp
new file mode 100644
index 000000000..6c4fec59d
--- /dev/null
+++ b/src/video_core/renderer_opengl/post_processing_opengl.cpp
@@ -0,0 +1,198 @@
+// Copyright 2016 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <sstream>
+#include <string>
+#include <vector>
+#include "common/common_paths.h"
+#include "common/file_util.h"
+#include "common/string_util.h"
+#include "video_core/renderer_opengl/post_processing_opengl.h"
+
+namespace OpenGL {
+
+// The Dolphin shader header is added here for drop-in compatibility with most
+// of Dolphin's "glsl" shaders, which use hlsl types, hence the #define's below
+// It's fairly complete, but the features it's missing are:
+// The font texture for the ascii shader (Citra doesn't have an overlay font)
+// GetTime (not used in any shader provided by Dolphin)
+// GetOption* (used in only one shader provided by Dolphin; would require more
+// configuration/frontend work)
+constexpr char dolphin_shader_header[] = R"(
+
+// hlsl to glsl types
+#define float2 vec2
+#define float3 vec3
+#define float4 vec4
+#define uint2 uvec2
+#define uint3 uvec3
+#define uint4 uvec4
+#define int2 ivec2
+#define int3 ivec3
+#define int4 ivec4
+
+// hlsl to glsl function translation
+#define frac fract
+#define lerp mix
+
+// Output variable
+out float4 color;
+// Input coordinates
+in float2 frag_tex_coord;
+// Resolution
+uniform float4 i_resolution;
+uniform float4 o_resolution;
+// Layer
+uniform int layer;
+
+uniform sampler2D color_texture;
+uniform sampler2D color_texture_r;
+
+// Interfacing functions
+float4 Sample()
+{
+    return texture(color_texture, frag_tex_coord);
+}
+
+float4 SampleLocation(float2 location)
+{
+    return texture(color_texture, location);
+}
+
+float4 SampleLayer(int layer)
+{
+    if(layer == 0)
+        return texture(color_texture, frag_tex_coord);
+    else
+        return texture(color_texture_r, frag_tex_coord);
+}
+
+#define SampleOffset(offset) textureOffset(color_texture, frag_tex_coord, offset)
+
+float2 GetResolution()
+{
+    return i_resolution.xy;
+}
+
+float2 GetInvResolution()
+{
+    return i_resolution.zw;
+}
+
+float2 GetIResolution()
+{
+    return i_resolution.xy;
+}
+
+float2 GetIInvResolution()
+{
+    return i_resolution.zw;
+}
+
+float2 GetOResolution()
+{
+    return o_resolution.xy;
+}
+
+float2 GetOInvResolution()
+{
+    return o_resolution.zw;
+}
+
+float2 GetCoordinates()
+{
+    return frag_tex_coord;
+}
+
+void SetOutput(float4 color_in)
+{
+    color = color_in;
+}
+
+)";
+
+std::vector<std::string> GetPostProcessingShaderList(bool anaglyph) {
+    std::string shader_dir = FileUtil::GetUserPath(FileUtil::UserPath::ShaderDir);
+    std::vector<std::string> shader_names;
+
+    if (!FileUtil::IsDirectory(shader_dir)) {
+        FileUtil::CreateDir(shader_dir);
+    }
+
+    if (anaglyph) {
+        shader_dir = shader_dir + "anaglyph";
+        if (!FileUtil::IsDirectory(shader_dir)) {
+            FileUtil::CreateDir(shader_dir);
+        }
+    }
+
+    // Would it make more sense to just add a directory list function to FileUtil?
+    const auto callback = [&shader_names](u64* num_entries_out, const std::string& directory,
+                                          const std::string& virtual_name) -> bool {
+        const std::string physical_name = directory + DIR_SEP + virtual_name;
+        if (!FileUtil::IsDirectory(physical_name)) {
+            // The following is done to avoid coupling this to Qt
+            std::size_t dot_pos = virtual_name.rfind(".");
+            if (dot_pos != std::string::npos) {
+                if (Common::ToLower(virtual_name.substr(dot_pos + 1)) == "glsl") {
+                    shader_names.push_back(virtual_name.substr(0, dot_pos));
+                }
+            }
+        }
+        return true;
+    };
+
+    FileUtil::ForeachDirectoryEntry(nullptr, shader_dir, callback);
+
+    std::sort(shader_names.begin(), shader_names.end());
+
+    return shader_names;
+}
+
+std::string GetPostProcessingShaderCode(bool anaglyph, std::string shader) {
+    std::string shader_dir = FileUtil::GetUserPath(FileUtil::UserPath::ShaderDir);
+    std::string shader_path;
+
+    if (anaglyph) {
+        shader_dir = shader_dir + "anaglyph";
+    }
+
+    // Examining the directory is done because the shader extension might have an odd case
+    // This can be eliminated if it is specified that the shader extension must be lowercase
+    const auto callback = [&shader, &shader_path](u64* num_entries_out,
+                                                  const std::string& directory,
+                                                  const std::string& virtual_name) -> bool {
+        const std::string physical_name = directory + DIR_SEP + virtual_name;
+        if (!FileUtil::IsDirectory(physical_name)) {
+            // The following is done to avoid coupling this to Qt
+            std::size_t dot_pos = virtual_name.rfind(".");
+            if (dot_pos != std::string::npos) {
+                if (Common::ToLower(virtual_name.substr(dot_pos + 1)) == "glsl" &&
+                    virtual_name.substr(0, dot_pos) == shader) {
+                    shader_path = physical_name;
+                    return false;
+                }
+            }
+        }
+        return true;
+    };
+
+    FileUtil::ForeachDirectoryEntry(nullptr, shader_dir, callback);
+    if (shader_path.empty()) {
+        return "";
+    }
+
+    std::ifstream file;
+    OpenFStream(file, shader_path, std::ios_base::in);
+    if (!file) {
+        return "";
+    }
+
+    std::stringstream shader_text;
+    shader_text << file.rdbuf();
+
+    return dolphin_shader_header + shader_text.str();
+}
+
+} // namespace OpenGL
diff --git a/src/video_core/renderer_opengl/post_processing_opengl.h b/src/video_core/renderer_opengl/post_processing_opengl.h
new file mode 100644
index 000000000..0016638e6
--- /dev/null
+++ b/src/video_core/renderer_opengl/post_processing_opengl.h
@@ -0,0 +1,23 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <string>
+#include <vector>
+
+namespace OpenGL {
+
+// Returns a vector of the names of the shaders available in the
+// "shaders" directory in citra's data directory
+std::vector<std::string> GetPostProcessingShaderList(bool anaglyph);
+
+// Returns the shader code for the shader named "shader_name"
+// with the appropriate header prepended to it
+// If anaglyph is true, it searches the shaders/anaglyph directory rather than
+// the shaders directory
+// If the shader cannot be loaded, an empty string is returned
+std::string GetPostProcessingShaderCode(bool anaglyph, std::string shader_name);
+
+} // namespace OpenGL
diff --git a/src/video_core/renderer_opengl/renderer_opengl.cpp b/src/video_core/renderer_opengl/renderer_opengl.cpp
index 73d396d71..874e3d8cc 100644
--- a/src/video_core/renderer_opengl/renderer_opengl.cpp
+++ b/src/video_core/renderer_opengl/renderer_opengl.cpp
@@ -22,6 +22,7 @@
 #include "video_core/debug_utils/debug_utils.h"
 #include "video_core/rasterizer_interface.h"
 #include "video_core/renderer_opengl/gl_vars.h"
+#include "video_core/renderer_opengl/post_processing_opengl.h"
 #include "video_core/renderer_opengl/renderer_opengl.h"
 #include "video_core/video_core.h"
 
@@ -52,6 +53,10 @@ static const char fragment_shader[] = R"(
 in vec2 frag_tex_coord;
 out vec4 color;
 
+uniform vec4 i_resolution;
+uniform vec4 o_resolution;
+uniform int layer;
+
 uniform sampler2D color_texture;
 
 void main() {
@@ -59,6 +64,36 @@ void main() {
 }
 )";
 
+static const char fragment_shader_anaglyph[] = R"(
+
+// Anaglyph Red-Cyan shader based on Dubois algorithm
+// Constants taken from the paper:
+// "Conversion of a Stereo Pair to Anaglyph with
+// the Least-Squares Projection Method"
+// Eric Dubois, March 2009
+const mat3 l = mat3( 0.437, 0.449, 0.164,
+              -0.062,-0.062,-0.024,
+              -0.048,-0.050,-0.017);
+const mat3 r = mat3(-0.011,-0.032,-0.007,
+               0.377, 0.761, 0.009,
+              -0.026,-0.093, 1.234);
+
+in vec2 frag_tex_coord;
+out vec4 color;
+
+uniform vec4 resolution;
+uniform int layer;
+
+uniform sampler2D color_texture;
+uniform sampler2D color_texture_r;
+
+void main() {
+    vec4 color_tex_l = texture(color_texture, frag_tex_coord);
+    vec4 color_tex_r = texture(color_texture_r, frag_tex_coord);
+    color = vec4(color_tex_l.rgb*l+color_tex_r.rgb*r, color_tex_l.a);
+}
+)";
+
 /**
  * Vertex structure that the drawn screen rectangles are composed of.
  */
@@ -275,20 +310,10 @@ void RendererOpenGL::InitOpenGLObjects() {
     glClearColor(Settings::values.bg_red, Settings::values.bg_green, Settings::values.bg_blue,
                  0.0f);
 
-    // Link shaders and get variable locations
-    if (GLES) {
-        std::string frag_source(fragment_shader_precision_OES);
-        frag_source += fragment_shader;
-        shader.Create(vertex_shader, frag_source.data());
-    } else {
-        shader.Create(vertex_shader, fragment_shader);
-    }
-    state.draw.shader_program = shader.handle;
-    state.Apply();
-    uniform_modelview_matrix = glGetUniformLocation(shader.handle, "modelview_matrix");
-    uniform_color_texture = glGetUniformLocation(shader.handle, "color_texture");
-    attrib_position = glGetAttribLocation(shader.handle, "vert_position");
-    attrib_tex_coord = glGetAttribLocation(shader.handle, "vert_tex_coord");
+    filter_sampler.Create();
+    ReloadSampler();
+
+    ReloadShader();
 
     // Generate VBO handle for drawing
     vertex_buffer.Create();
@@ -334,6 +359,63 @@ void RendererOpenGL::InitOpenGLObjects() {
     state.Apply();
 }
 
+void RendererOpenGL::ReloadSampler() {
+    glSamplerParameteri(filter_sampler.handle, GL_TEXTURE_MIN_FILTER,
+                        Settings::values.filter_mode ? GL_LINEAR : GL_NEAREST);
+    glSamplerParameteri(filter_sampler.handle, GL_TEXTURE_MAG_FILTER,
+                        Settings::values.filter_mode ? GL_LINEAR : GL_NEAREST);
+    glSamplerParameteri(filter_sampler.handle, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+    glSamplerParameteri(filter_sampler.handle, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+}
+
+void RendererOpenGL::ReloadShader() {
+    // Link shaders and get variable locations
+    std::string shader_data;
+    if (GLES) {
+        shader_data += fragment_shader_precision_OES;
+    }
+    if (Settings::values.render_3d == Settings::StereoRenderOption::Anaglyph) {
+        if (Settings::values.pp_shader_name == "dubois (builtin)") {
+            shader_data += fragment_shader_anaglyph;
+        } else {
+            std::string shader_text =
+                OpenGL::GetPostProcessingShaderCode(true, Settings::values.pp_shader_name);
+            if (shader_text.empty()) {
+                // Should probably provide some information that the shader couldn't load
+                shader_data += fragment_shader_anaglyph;
+            } else {
+                shader_data += shader_text;
+            }
+        }
+    } else {
+        if (Settings::values.pp_shader_name == "none (builtin)") {
+            shader_data += fragment_shader;
+        } else {
+            std::string shader_text =
+                OpenGL::GetPostProcessingShaderCode(false, Settings::values.pp_shader_name);
+            if (shader_text.empty()) {
+                // Should probably provide some information that the shader couldn't load
+                shader_data += fragment_shader;
+            } else {
+                shader_data += shader_text;
+            }
+        }
+    }
+    shader.Create(vertex_shader, shader_data.c_str());
+    state.draw.shader_program = shader.handle;
+    state.Apply();
+    uniform_modelview_matrix = glGetUniformLocation(shader.handle, "modelview_matrix");
+    uniform_color_texture = glGetUniformLocation(shader.handle, "color_texture");
+    if (Settings::values.render_3d == Settings::StereoRenderOption::Anaglyph) {
+        uniform_color_texture_r = glGetUniformLocation(shader.handle, "color_texture_r");
+    }
+    uniform_i_resolution = glGetUniformLocation(shader.handle, "i_resolution");
+    uniform_o_resolution = glGetUniformLocation(shader.handle, "o_resolution");
+    uniform_layer = glGetUniformLocation(shader.handle, "layer");
+    attrib_position = glGetAttribLocation(shader.handle, "vert_position");
+    attrib_tex_coord = glGetAttribLocation(shader.handle, "vert_tex_coord");
+}
+
 void RendererOpenGL::ConfigureFramebufferTexture(TextureInfo& texture,
                                                  const GPU::Regs::FramebufferConfig& framebuffer) {
     GPU::Regs::PixelFormat format = framebuffer.color_format;
@@ -401,22 +483,71 @@ void RendererOpenGL::ConfigureFramebufferTexture(TextureInfo& texture,
  */
 void RendererOpenGL::DrawSingleScreenRotated(const ScreenInfo& screen_info, float x, float y,
                                              float w, float h) {
-    auto& texcoords = screen_info.display_texcoords;
+    const auto& texcoords = screen_info.display_texcoords;
 
-    std::array<ScreenRectVertex, 4> vertices = {{
+    const std::array<ScreenRectVertex, 4> vertices = {{
         ScreenRectVertex(x, y, texcoords.bottom, texcoords.left),
         ScreenRectVertex(x + w, y, texcoords.bottom, texcoords.right),
         ScreenRectVertex(x, y + h, texcoords.top, texcoords.left),
         ScreenRectVertex(x + w, y + h, texcoords.top, texcoords.right),
     }};
 
+    // As this is the "DrawSingleScreenRotated" function, the output resolution dimensions have been
+    // swapped. If a non-rotated draw-screen function were to be added for book-mode games, those
+    // should probably be set to the standard (w, h, 1.0 / w, 1.0 / h) ordering.
+    u16 scale_factor = VideoCore::GetResolutionScaleFactor();
+    glUniform4f(uniform_i_resolution, screen_info.texture.width * scale_factor,
+                screen_info.texture.height * scale_factor,
+                1.0 / (screen_info.texture.width * scale_factor),
+                1.0 / (screen_info.texture.height * scale_factor));
+    glUniform4f(uniform_o_resolution, h, w, 1.0f / h, 1.0f / w);
     state.texture_units[0].texture_2d = screen_info.display_texture;
+    state.texture_units[0].sampler = filter_sampler.handle;
     state.Apply();
 
     glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(vertices), vertices.data());
     glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
 
     state.texture_units[0].texture_2d = 0;
+    state.texture_units[0].sampler = 0;
+    state.Apply();
+}
+
+/**
+ * Draws a single texture to the emulator window, rotating the texture to correct for the 3DS's LCD
+ * rotation.
+ */
+void RendererOpenGL::DrawSingleScreenAnaglyphRotated(const ScreenInfo& screen_info_l,
+                                                     const ScreenInfo& screen_info_r, float x,
+                                                     float y, float w, float h) {
+    const auto& texcoords = screen_info_l.display_texcoords;
+
+    const std::array<ScreenRectVertex, 4> vertices = {{
+        ScreenRectVertex(x, y, texcoords.bottom, texcoords.left),
+        ScreenRectVertex(x + w, y, texcoords.bottom, texcoords.right),
+        ScreenRectVertex(x, y + h, texcoords.top, texcoords.left),
+        ScreenRectVertex(x + w, y + h, texcoords.top, texcoords.right),
+    }};
+
+    u16 scale_factor = VideoCore::GetResolutionScaleFactor();
+    glUniform4f(uniform_i_resolution, screen_info_l.texture.width * scale_factor,
+                screen_info_l.texture.height * scale_factor,
+                1.0 / (screen_info_l.texture.width * scale_factor),
+                1.0 / (screen_info_l.texture.height * scale_factor));
+    glUniform4f(uniform_o_resolution, h, w, 1.0f / h, 1.0f / w);
+    state.texture_units[0].texture_2d = screen_info_l.display_texture;
+    state.texture_units[1].texture_2d = screen_info_r.display_texture;
+    state.texture_units[0].sampler = filter_sampler.handle;
+    state.texture_units[1].sampler = filter_sampler.handle;
+    state.Apply();
+
+    glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(vertices), vertices.data());
+    glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+
+    state.texture_units[0].texture_2d = 0;
+    state.texture_units[1].texture_2d = 0;
+    state.texture_units[0].sampler = 0;
+    state.texture_units[1].sampler = 0;
     state.Apply();
 }
 
@@ -430,6 +561,18 @@ void RendererOpenGL::DrawScreens(const Layout::FramebufferLayout& layout) {
                      0.0f);
     }
 
+    if (VideoCore::g_renderer_sampler_update_requested.exchange(false)) {
+        // Set the new filtering mode for the sampler
+        ReloadSampler();
+    }
+
+    if (VideoCore::g_renderer_shader_update_requested.exchange(false)) {
+        // Update fragment shader before drawing
+        shader.Release();
+        // Link shaders and get variable locations
+        ReloadShader();
+    }
+
     const auto& top_screen = layout.top_screen;
     const auto& bottom_screen = layout.bottom_screen;
 
@@ -442,36 +585,53 @@ void RendererOpenGL::DrawScreens(const Layout::FramebufferLayout& layout) {
     glUniformMatrix3x2fv(uniform_modelview_matrix, 1, GL_FALSE, ortho_matrix.data());
 
     // Bind texture in Texture Unit 0
-    glActiveTexture(GL_TEXTURE0);
     glUniform1i(uniform_color_texture, 0);
 
+    // Bind a second texture for the right eye if in Anaglyph mode
+    if (Settings::values.render_3d == Settings::StereoRenderOption::Anaglyph) {
+        glUniform1i(uniform_color_texture_r, 1);
+    }
+
+    glUniform1i(uniform_layer, 0);
     if (layout.top_screen_enabled) {
-        if (!Settings::values.toggle_3d) {
+        if (Settings::values.render_3d == Settings::StereoRenderOption::Off) {
             DrawSingleScreenRotated(screen_infos[0], (float)top_screen.left, (float)top_screen.top,
                                     (float)top_screen.GetWidth(), (float)top_screen.GetHeight());
-        } else {
+        } else if (Settings::values.render_3d == Settings::StereoRenderOption::SideBySide) {
             DrawSingleScreenRotated(screen_infos[0], (float)top_screen.left / 2,
                                     (float)top_screen.top, (float)top_screen.GetWidth() / 2,
                                     (float)top_screen.GetHeight());
+            glUniform1i(uniform_layer, 1);
             DrawSingleScreenRotated(screen_infos[1],
                                     ((float)top_screen.left / 2) + ((float)layout.width / 2),
                                     (float)top_screen.top, (float)top_screen.GetWidth() / 2,
                                     (float)top_screen.GetHeight());
+        } else if (Settings::values.render_3d == Settings::StereoRenderOption::Anaglyph) {
+            DrawSingleScreenAnaglyphRotated(
+                screen_infos[0], screen_infos[1], (float)top_screen.left, (float)top_screen.top,
+                (float)top_screen.GetWidth(), (float)top_screen.GetHeight());
         }
     }
+    glUniform1i(uniform_layer, 0);
     if (layout.bottom_screen_enabled) {
-        if (!Settings::values.toggle_3d) {
+        if (Settings::values.render_3d == Settings::StereoRenderOption::Off) {
             DrawSingleScreenRotated(screen_infos[2], (float)bottom_screen.left,
                                     (float)bottom_screen.top, (float)bottom_screen.GetWidth(),
                                     (float)bottom_screen.GetHeight());
-        } else {
+        } else if (Settings::values.render_3d == Settings::StereoRenderOption::SideBySide) {
             DrawSingleScreenRotated(screen_infos[2], (float)bottom_screen.left / 2,
                                     (float)bottom_screen.top, (float)bottom_screen.GetWidth() / 2,
                                     (float)bottom_screen.GetHeight());
+            glUniform1i(uniform_layer, 1);
             DrawSingleScreenRotated(screen_infos[2],
                                     ((float)bottom_screen.left / 2) + ((float)layout.width / 2),
                                     (float)bottom_screen.top, (float)bottom_screen.GetWidth() / 2,
                                     (float)bottom_screen.GetHeight());
+        } else if (Settings::values.render_3d == Settings::StereoRenderOption::Anaglyph) {
+            DrawSingleScreenAnaglyphRotated(screen_infos[2], screen_infos[2],
+                                            (float)bottom_screen.left, (float)bottom_screen.top,
+                                            (float)bottom_screen.GetWidth(),
+                                            (float)bottom_screen.GetHeight());
         }
     }
 
diff --git a/src/video_core/renderer_opengl/renderer_opengl.h b/src/video_core/renderer_opengl/renderer_opengl.h
index 5bd601834..75a1a83d6 100644
--- a/src/video_core/renderer_opengl/renderer_opengl.h
+++ b/src/video_core/renderer_opengl/renderer_opengl.h
@@ -52,10 +52,15 @@ public:
 
 private:
     void InitOpenGLObjects();
+    void ReloadSampler();
+    void ReloadShader();
     void ConfigureFramebufferTexture(TextureInfo& texture,
                                      const GPU::Regs::FramebufferConfig& framebuffer);
     void DrawScreens(const Layout::FramebufferLayout& layout);
     void DrawSingleScreenRotated(const ScreenInfo& screen_info, float x, float y, float w, float h);
+    void DrawSingleScreenAnaglyphRotated(const ScreenInfo& screen_info_l,
+                                         const ScreenInfo& screen_info_r, float x, float y, float w,
+                                         float h);
     void UpdateFramerate();
 
     // Loads framebuffer from emulated memory into the display information structure
@@ -71,6 +76,7 @@ private:
     OGLBuffer vertex_buffer;
     OGLProgram shader;
     OGLFramebuffer screenshot_framebuffer;
+    OGLSampler filter_sampler;
 
     /// Display information for top and bottom screens respectively
     std::array<ScreenInfo, 3> screen_infos;
@@ -78,6 +84,12 @@ private:
     // Shader uniform location indices
     GLuint uniform_modelview_matrix;
     GLuint uniform_color_texture;
+    GLuint uniform_color_texture_r;
+
+    // Shader uniform for Dolphin compatibility
+    GLuint uniform_i_resolution;
+    GLuint uniform_o_resolution;
+    GLuint uniform_layer;
 
     // Shader attribute input indices
     GLuint attrib_position;
diff --git a/src/video_core/video_core.cpp b/src/video_core/video_core.cpp
index 525bc963c..7b382dbac 100644
--- a/src/video_core/video_core.cpp
+++ b/src/video_core/video_core.cpp
@@ -24,6 +24,8 @@ std::atomic<bool> g_hw_shader_enabled;
 std::atomic<bool> g_hw_shader_accurate_gs;
 std::atomic<bool> g_hw_shader_accurate_mul;
 std::atomic<bool> g_renderer_bg_color_update_requested;
+std::atomic<bool> g_renderer_sampler_update_requested;
+std::atomic<bool> g_renderer_shader_update_requested;
 // Screenshot
 std::atomic<bool> g_renderer_screenshot_requested;
 void* g_screenshot_bits;
diff --git a/src/video_core/video_core.h b/src/video_core/video_core.h
index c94009c92..8e7810b1a 100644
--- a/src/video_core/video_core.h
+++ b/src/video_core/video_core.h
@@ -34,6 +34,8 @@ extern std::atomic<bool> g_hw_shader_enabled;
 extern std::atomic<bool> g_hw_shader_accurate_gs;
 extern std::atomic<bool> g_hw_shader_accurate_mul;
 extern std::atomic<bool> g_renderer_bg_color_update_requested;
+extern std::atomic<bool> g_renderer_sampler_update_requested;
+extern std::atomic<bool> g_renderer_shader_update_requested;
 // Screenshot
 extern std::atomic<bool> g_renderer_screenshot_requested;
 extern void* g_screenshot_bits;