diff --git a/common/lc_profile.cpp b/common/lc_profile.cpp
index 4fcab594..37fa2bb3 100644
--- a/common/lc_profile.cpp
+++ b/common/lc_profile.cpp
@@ -109,8 +109,8 @@ lcProfileEntry gProfileEntries[LC_NUM_PROFILE_KEYS] =
 	lcProfileEntry("HTML", "PartsWidth", 128),                                       // LC_PROFILE_HTML_PARTS_WIDTH
 	lcProfileEntry("HTML", "PartsHeight", 128),                                      // LC_PROFILE_HTML_PARTS_HEIGHT
 
-	lcProfileEntry("POVRay", "Path", ""),                                            // LC_PROFILE_POVRAY_PATH
-	lcProfileEntry("POVRay", "LGEOPath", "/usr/bin/povray"),                         // LC_PROFILE_POVRAY_LGEO_PATH
+	lcProfileEntry("POVRay", "Path", "/usr/bin/povray"),                             // LC_PROFILE_POVRAY_PATH
+	lcProfileEntry("POVRay", "LGEOPath", ""),                                        // LC_PROFILE_POVRAY_LGEO_PATH
 	lcProfileEntry("POVRay", "Width", 1280),                                         // LC_PROFILE_POVRAY_WIDTH
 	lcProfileEntry("POVRay", "Height", 720)                                          // LC_PROFILE_POVRAY_HEIGHT
 };
diff --git a/qt/lc_renderdialog.cpp b/qt/lc_renderdialog.cpp
index b9e33932..7c2ba2e2 100644
--- a/qt/lc_renderdialog.cpp
+++ b/qt/lc_renderdialog.cpp
@@ -137,6 +137,7 @@ void lcRenderDialog::on_RenderButton_clicked()
 
 #ifdef Q_OS_WIN
 	POVRayPath = QDir::cleanPath(QCoreApplication::applicationDirPath() + QLatin1String("/povray/povconsole32-sse2.exe"));
+	Arguments.append("+SMleocad-povray");
 #endif
 
 #ifdef Q_OS_LINUX
@@ -147,6 +148,7 @@ void lcRenderDialog::on_RenderButton_clicked()
 
 #ifdef Q_OS_MACOS
 	POVRayPath = QDir::cleanPath(QCoreApplication::applicationDirPath() + QLatin1String("/povray/povconsole"));
+	Arguments.append("+SMleocad-povray");
 #endif
 
 	mProcess = new QProcess(this);
diff --git a/tools/povray/README.txt b/tools/povray/README.txt
new file mode 100644
index 00000000..2fd7f6ab
--- /dev/null
+++ b/tools/povray/README.txt
@@ -0,0 +1,4 @@
+This is a fork from POV-Ray 3.7 with small changes to make it use shared memory for rendering, so that LeoCAD can display the image while it's being rendered.
+
+You can find the forked source code at https://github.com/leozide/povray, and the original version at http://www.povray.org
+
diff --git a/tools/povray/povconsole32-sse2.exe b/tools/povray/povconsole32-sse2.exe
new file mode 100644
index 00000000..3856c72b
Binary files /dev/null and b/tools/povray/povconsole32-sse2.exe differ