diff --git a/core/nullDC.cpp b/core/nullDC.cpp
index 00309250c..e70d9220a 100755
--- a/core/nullDC.cpp
+++ b/core/nullDC.cpp
@@ -294,6 +294,7 @@ void LoadSettings()
 	settings.dreamcast.RTC			= cfgLoadInt("config", "Dreamcast.RTC", GetRTC_now());
 	settings.dreamcast.region		= cfgLoadInt("config", "Dreamcast.Region", 3);
 	settings.dreamcast.broadcast	= cfgLoadInt("config", "Dreamcast.Broadcast", 4);
+	settings.dreamcast.rttOption	= cfgLoadInt("config", "Dreamcast.Rtt", 0);
 	settings.aica.LimitFPS			= cfgLoadInt("config", "aica.LimitFPS", 1);
 	settings.aica.NoBatch			= cfgLoadInt("config", "aica.NoBatch", 0);
 	settings.aica.NoSound			= cfgLoadInt("config", "aica.NoSound", 0);
@@ -377,4 +378,5 @@ void SaveSettings()
 	cfgSaveInt("config","Dreamcast.RTC",		settings.dreamcast.RTC);
 	cfgSaveInt("config","Dreamcast.Region",		settings.dreamcast.region);
 	cfgSaveInt("config","Dreamcast.Broadcast",	settings.dreamcast.broadcast);
+	cfgSaveInt("config","Dreamcast.Rtt",		settings.dreamcast.rttOption);
 }
diff --git a/core/rend/gles/gles.cpp b/core/rend/gles/gles.cpp
index e7bb861c4..f978e698a 100755
--- a/core/rend/gles/gles.cpp
+++ b/core/rend/gles/gles.cpp
@@ -1,4 +1,5 @@
 #include <math.h>
+#include <types.h>
 #include "gles.h"
 #include "rend/TexCache.h"
 #include "cfg/cfg.h"
@@ -1779,6 +1780,8 @@ bool RenderFrame()
 #endif
 	}
 
+	printf("RTT option: %d", settings.dreamcast.rttOption);
+
 	//Clear depth
 	//Color is cleared by the bgp
 	if (settings.rend.WideScreen)
diff --git a/core/types.h b/core/types.h
index dadb01cab..bc91bea78 100644
--- a/core/types.h
+++ b/core/types.h
@@ -640,6 +640,7 @@ struct settings_t
 		u32 RTC;
 		u32 region;
 		u32 broadcast;
+		u32 rttOption;
 	} dreamcast;
 
 	struct
diff --git a/shell/android-studio/reicast/src/main/java/com/reicast/emulator/Emulator.java b/shell/android-studio/reicast/src/main/java/com/reicast/emulator/Emulator.java
index 1f005bb76..52c555b53 100644
--- a/shell/android-studio/reicast/src/main/java/com/reicast/emulator/Emulator.java
+++ b/shell/android-studio/reicast/src/main/java/com/reicast/emulator/Emulator.java
@@ -16,6 +16,7 @@ public class Emulator extends Application {
     public static final String pref_cable = "dc_cable";
     public static final String pref_dcregion = "dc_region";
     public static final String pref_broadcast = "dc_broadcast";
+    public static final String pref_rtt = "dc_rtt";
     public static final String pref_limitfps = "limit_fps";
     public static final String pref_nosound = "sound_disabled";
     public static final String pref_mipmaps = "use_mipmaps";
@@ -34,6 +35,7 @@ public class Emulator extends Application {
     public static int cable = 3;
     public static int dcregion = 3;
     public static int broadcast = 4;
+    public static int rtt = 3;
     public static boolean limitfps = true;
     public static boolean nobatch = false;
     public static boolean nosound = false;
@@ -57,6 +59,7 @@ public class Emulator extends Application {
         Emulator.cable = mPrefs.getInt(pref_cable, cable);
         Emulator.dcregion = mPrefs.getInt(pref_dcregion, dcregion);
         Emulator.broadcast = mPrefs.getInt(pref_broadcast, broadcast);
+        Emulator.rtt = mPrefs.getInt(pref_rtt, rtt);
         Emulator.limitfps = mPrefs.getBoolean(pref_limitfps, limitfps);
         Emulator.nosound = mPrefs.getBoolean(pref_nosound, nosound);
         Emulator.mipmaps = mPrefs.getBoolean(pref_mipmaps, mipmaps);
@@ -80,6 +83,7 @@ public class Emulator extends Application {
         JNIdc.cable(Emulator.cable);
         JNIdc.region(Emulator.dcregion);
         JNIdc.broadcast(Emulator.broadcast);
+        JNIdc.rtt(Emulator.rtt);
         JNIdc.limitfps(Emulator.limitfps ? 1 : 0);
         JNIdc.nobatch(Emulator.nobatch ? 1 : 0);
         JNIdc.nosound(Emulator.nosound ? 1 : 0);
diff --git a/shell/android-studio/reicast/src/main/java/com/reicast/emulator/config/OptionsFragment.java b/shell/android-studio/reicast/src/main/java/com/reicast/emulator/config/OptionsFragment.java
index c5e4c40ed..07e2d1c84 100644
--- a/shell/android-studio/reicast/src/main/java/com/reicast/emulator/config/OptionsFragment.java
+++ b/shell/android-studio/reicast/src/main/java/com/reicast/emulator/config/OptionsFragment.java
@@ -378,6 +378,24 @@ public class OptionsFragment extends Fragment {
 			}
 		});
 
+		//----------------------------------------
+		String[] rtts = getResources().getStringArray(R.array.rtt);
+		Spinner rtt_spnr = (Spinner) getView().findViewById(R.id.rtt_spinner);
+		ArrayAdapter<String> rttAdapter = new ArrayAdapter<>(
+				getActivity(), R.layout.spinner_selected, rtts);
+		rttAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
+		rtt_spnr.setAdapter(rttAdapter);
+		rtt_spnr.setSelection(mPrefs.getInt(Emulator.pref_rtt, Emulator.rtt), true);
+		rtt_spnr.setOnItemSelectedListener(new OnItemSelectedListener() {
+			public void onItemSelected(AdapterView<?> parent, View view, int pos, long id) {
+				mPrefs.edit().putInt(Emulator.pref_rtt, pos).apply();
+			}
+
+			public void onNothingSelected(AdapterView<?> arg0) {
+			}
+		});
+//----------------------------------------
+
 		OnCheckedChangeListener limitfps_option = new OnCheckedChangeListener() {
 
 			public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
@@ -711,6 +729,7 @@ public class OptionsFragment extends Fragment {
 		mPrefs.edit().remove(Emulator.pref_cable).apply();
 		mPrefs.edit().remove(Emulator.pref_dcregion).apply();
 		mPrefs.edit().remove(Emulator.pref_broadcast).apply();
+		mPrefs.edit().remove(Emulator.pref_rtt).apply();
 		mPrefs.edit().remove(Emulator.pref_limitfps).apply();
 		mPrefs.edit().remove(Emulator.pref_mipmaps).apply();
 		mPrefs.edit().remove(Emulator.pref_widescreen).apply();
@@ -730,6 +749,7 @@ public class OptionsFragment extends Fragment {
 		Emulator.cable = 3;
 		Emulator.dcregion = 3;
 		Emulator.broadcast = 4;
+		Emulator.rtt = 3;
 		Emulator.limitfps = true;
 		Emulator.mipmaps = true;
 		Emulator.widescreen = false;
diff --git a/shell/android-studio/reicast/src/main/java/com/reicast/emulator/emu/JNIdc.java b/shell/android-studio/reicast/src/main/java/com/reicast/emulator/emu/JNIdc.java
index ec8c5604c..d6327069a 100644
--- a/shell/android-studio/reicast/src/main/java/com/reicast/emulator/emu/JNIdc.java
+++ b/shell/android-studio/reicast/src/main/java/com/reicast/emulator/emu/JNIdc.java
@@ -36,6 +36,7 @@ public final class JNIdc
 	public static native void cable(int cable);
 	public static native void region(int region);
 	public static native void broadcast(int broadcast);
+	public static native void rtt(int rtt);
 	public static native void limitfps(int limiter);
 	public static native void nobatch(int nobatch);
 	public static native void nosound(int noaudio);
diff --git a/shell/android-studio/reicast/src/main/jni/src/Android.cpp b/shell/android-studio/reicast/src/main/jni/src/Android.cpp
index de4ef695f..deccebceb 100644
--- a/shell/android-studio/reicast/src/main/jni/src/Android.cpp
+++ b/shell/android-studio/reicast/src/main/jni/src/Android.cpp
@@ -52,6 +52,7 @@ JNIEXPORT void JNICALL Java_com_reicast_emulator_emu_JNIdc_safemode(JNIEnv *env,
 JNIEXPORT void JNICALL Java_com_reicast_emulator_emu_JNIdc_cable(JNIEnv *env,jobject obj, jint cable)  __attribute__((visibility("default")));
 JNIEXPORT void JNICALL Java_com_reicast_emulator_emu_JNIdc_region(JNIEnv *env,jobject obj, jint region)  __attribute__((visibility("default")));
 JNIEXPORT void JNICALL Java_com_reicast_emulator_emu_JNIdc_broadcast(JNIEnv *env,jobject obj, jint broadcast)  __attribute__((visibility("default")));
+JNIEXPORT void JNICALL Java_com_reicast_emulator_emu_JNIdc_rtt(JNIEnv *env,jobject obj, jint rtt)  __attribute__((visibility("default")));
 JNIEXPORT void JNICALL Java_com_reicast_emulator_emu_JNIdc_limitfps(JNIEnv *env,jobject obj, jint limiter)  __attribute__((visibility("default")));
 JNIEXPORT void JNICALL Java_com_reicast_emulator_emu_JNIdc_nobatch(JNIEnv *env,jobject obj, jint nobatch)  __attribute__((visibility("default")));
 JNIEXPORT void JNICALL Java_com_reicast_emulator_emu_JNIdc_nosound(JNIEnv *env,jobject obj, jint noaudio)  __attribute__((visibility("default")));
@@ -102,6 +103,12 @@ JNIEXPORT void JNICALL Java_com_reicast_emulator_emu_JNIdc_broadcast(JNIEnv *env
     settings.dreamcast.broadcast = broadcast;
 }
 
+JNIEXPORT void JNICALL Java_com_reicast_emulator_emu_JNIdc_rtt(JNIEnv *env,jobject obj, jint rtt)
+{
+    settings.dreamcast.rttOption = rtt;
+}
+
+
 JNIEXPORT void JNICALL Java_com_reicast_emulator_emu_JNIdc_limitfps(JNIEnv *env,jobject obj, jint limiter)
 {
     settings.aica.LimitFPS = limiter;
diff --git a/shell/android-studio/reicast/src/main/res/layout-v14/configure_fragment.xml b/shell/android-studio/reicast/src/main/res/layout-v14/configure_fragment.xml
index 866364961..ffa7f2566 100644
--- a/shell/android-studio/reicast/src/main/res/layout-v14/configure_fragment.xml
+++ b/shell/android-studio/reicast/src/main/res/layout-v14/configure_fragment.xml
@@ -636,6 +636,35 @@
                 </LinearLayout>
             </TableRow>
 
+            <TableRow
+                android:layout_marginTop="10dp"
+                android:gravity="center_vertical" >
+
+                <TextView
+                    android:id="@+id/rtt_text"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="0.5"
+                    android:ems="10"
+                    android:gravity="center_vertical|left"
+                    android:text="@string/select_rtt" />
+
+                <LinearLayout
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:gravity="right"
+                    android:orientation="vertical" >
+
+                    <Spinner
+                        android:id="@+id/rtt_spinner"
+                        android:layout_width="wrap_content"
+                        android:layout_height="0dp"
+                        android:layout_weight="1"
+                        android:ems="10" />
+                </LinearLayout>
+            </TableRow>
+
             <TableRow
                 android:layout_marginTop="10dp"
                 android:gravity="center_vertical" >
diff --git a/shell/android-studio/reicast/src/main/res/layout/configure_fragment.xml b/shell/android-studio/reicast/src/main/res/layout/configure_fragment.xml
index 715a72899..aa4ec85f1 100644
--- a/shell/android-studio/reicast/src/main/res/layout/configure_fragment.xml
+++ b/shell/android-studio/reicast/src/main/res/layout/configure_fragment.xml
@@ -636,6 +636,35 @@
                 </LinearLayout>
             </TableRow>
 
+            <TableRow
+                android:layout_marginTop="10dp"
+                android:gravity="center_vertical" >
+
+                <TextView
+                    android:id="@+id/rtt_text"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="0.5"
+                    android:ems="10"
+                    android:gravity="center_vertical|left"
+                    android:text="@string/select_rtt" />
+
+                <LinearLayout
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:gravity="right"
+                    android:orientation="vertical" >
+
+                    <Spinner
+                        android:id="@+id/rtt_spinner"
+                        android:layout_width="wrap_content"
+                        android:layout_height="0dp"
+                        android:layout_weight="1"
+                        android:ems="10" />
+                </LinearLayout>
+            </TableRow>
+
             <TableRow
                 android:layout_marginTop="10dp"
                 android:gravity="center_vertical" >
diff --git a/shell/android-studio/reicast/src/main/res/values-pl/strings.xml b/shell/android-studio/reicast/src/main/res/values-pl/strings.xml
index 5d5e9bb2a..9007c250f 100644
--- a/shell/android-studio/reicast/src/main/res/values-pl/strings.xml
+++ b/shell/android-studio/reicast/src/main/res/values-pl/strings.xml
@@ -18,6 +18,7 @@
     <string name="select_dynarec">Opcje Dynarec</string>
     <string name="select_unstable">Niestabilne optymalizacje</string>
     <string name="select_region">Region DC</string>
+    <string name="select_rtt">Renderuj do tekstury</string>
     <string name="select_limitfps">Limit FPS</string>
     <string name="select_mipmaps">Użyj Mipmap (fix dla starego SGX540)</string>
     <string name="select_stretch">Tryb Szerokoekranowy</string>
diff --git a/shell/android-studio/reicast/src/main/res/values-ru/strings.xml b/shell/android-studio/reicast/src/main/res/values-ru/strings.xml
index 65cccc0a7..652383a93 100644
--- a/shell/android-studio/reicast/src/main/res/values-ru/strings.xml
+++ b/shell/android-studio/reicast/src/main/res/values-ru/strings.xml
@@ -38,6 +38,7 @@
     <string name="select_cable">Тип кабеля</string>
     <string name="select_region">Регион Dreamcast</string>
     <string name="select_broadcast">Система ТВ</string>
+    <string name="select_rtt">Рендеринг текстуры (RTT)</string>
     <string name="select_limitfps">Ограничение FPS</string>
     <string name="select_mipmaps">MIP-карты (откл. для SGX540)</string>
     <string name="select_stretch">Широкоэкранный режим</string>
diff --git a/shell/android-studio/reicast/src/main/res/values/donottranslate.xml b/shell/android-studio/reicast/src/main/res/values/donottranslate.xml
index 72e64ba77..805954e77 100644
--- a/shell/android-studio/reicast/src/main/res/values/donottranslate.xml
+++ b/shell/android-studio/reicast/src/main/res/values/donottranslate.xml
@@ -61,6 +61,14 @@
         <item>9 - PAL-E</item>
     </string-array>
 
+    <string-array name="rtt">
+        <item>Disabled - skip frames</item>
+        <item>Zeros</item>
+        <item>Ones</item>
+        <item>Shadow circle</item>
+        <item>Full</item>
+    </string-array>
+
     <string-array name="bioscode">
         <item>J</item>
         <item>E</item>
diff --git a/shell/android-studio/reicast/src/main/res/values/strings.xml b/shell/android-studio/reicast/src/main/res/values/strings.xml
index 22620e428..a2eb11513 100644
--- a/shell/android-studio/reicast/src/main/res/values/strings.xml
+++ b/shell/android-studio/reicast/src/main/res/values/strings.xml
@@ -42,6 +42,7 @@
     <string name="select_cable">Cable Type</string>
     <string name="select_region">DC Region</string>
     <string name="select_broadcast">Broadcast</string>
+    <string name="select_rtt">Render to texture</string>
     <string name="select_limitfps">Limit FPS</string>
     <string name="select_mipmaps">Use Mipmaps (fixes SGX540)</string>
     <string name="select_stretch">Widescreen Mode</string>