diff --git a/apps/openmw/mwrender/characterpreview.cpp b/apps/openmw/mwrender/characterpreview.cpp
index 89db3e5f46..061f4d5094 100644
--- a/apps/openmw/mwrender/characterpreview.cpp
+++ b/apps/openmw/mwrender/characterpreview.cpp
@@ -17,6 +17,7 @@
 #include <components/fallback/fallback.hpp>
 #include <components/sceneutil/lightmanager.hpp>
 #include <components/sceneutil/shadow.hpp>
+#include <components/settings/settings.hpp>
 
 #include "../mwbase/environment.hpp"
 #include "../mwbase/world.hpp"
@@ -135,7 +136,7 @@ namespace MWRender
         mCamera->setProjectionMatrixAsPerspective(fovYDegrees, sizeX/static_cast<float>(sizeY), 0.1f, 10000.f); // zNear and zFar are autocomputed
         mCamera->setViewport(0, 0, sizeX, sizeY);
         mCamera->setRenderOrder(osg::Camera::PRE_RENDER);
-        mCamera->attach(osg::Camera::COLOR_BUFFER, mTexture);
+        mCamera->attach(osg::Camera::COLOR_BUFFER, mTexture, 0, 0, false, Settings::Manager::getInt("antialiasing", "Video"));
         mCamera->setName("CharacterPreview");
         mCamera->setComputeNearFarMode(osg::Camera::COMPUTE_NEAR_FAR_USING_BOUNDING_VOLUMES);
         mCamera->setCullMask(~(Mask_UpdateVisitor));
diff --git a/apps/openmw/mwrender/localmap.cpp b/apps/openmw/mwrender/localmap.cpp
index 401e21ae46..90c85f39fa 100644
--- a/apps/openmw/mwrender/localmap.cpp
+++ b/apps/openmw/mwrender/localmap.cpp
@@ -233,7 +233,17 @@ void LocalMap::setupRenderToTexture(osg::ref_ptr<osg::Camera> camera, int x, int
     texture->setWrap(osg::Texture::WRAP_S, osg::Texture::CLAMP_TO_EDGE);
     texture->setWrap(osg::Texture::WRAP_T, osg::Texture::CLAMP_TO_EDGE);
 
-    camera->attach(osg::Camera::COLOR_BUFFER, texture);
+    unsigned int samples = 0;
+    unsigned int colourSamples = 0;
+    if (Settings::Manager::getBool("convert alpha test to alpha-to-coverage", "Shaders"))
+    {
+        // Alpha-to-coverage requires a multisampled framebuffer.
+        // OSG will set that up automatically and resolve it to the specified single-sample texture for us.
+        // For some reason, two samples are needed, at least with some drivers.
+        samples = 2;
+        colourSamples = 1;
+    }
+    camera->attach(osg::Camera::COLOR_BUFFER, texture, 0, 0, false, samples, colourSamples);
 
     camera->addChild(mSceneRoot);
     mRoot->addChild(camera);
diff --git a/apps/openmw/mwrender/water.cpp b/apps/openmw/mwrender/water.cpp
index b9018e0a27..3d3ec4ef6e 100644
--- a/apps/openmw/mwrender/water.cpp
+++ b/apps/openmw/mwrender/water.cpp
@@ -271,7 +271,17 @@ public:
         mRefractionTexture->setFilter(osg::Texture::MIN_FILTER, osg::Texture::LINEAR);
         mRefractionTexture->setFilter(osg::Texture::MAG_FILTER, osg::Texture::LINEAR);
 
-        attach(osg::Camera::COLOR_BUFFER, mRefractionTexture);
+        unsigned int samples = 0;
+        unsigned int colourSamples = 0;
+        if (Settings::Manager::getBool("convert alpha test to alpha-to-coverage", "Shaders"))
+        {
+            // Alpha-to-coverage requires a multisampled framebuffer.
+            // OSG will set that up automatically and resolve it to the specified single-sample texture for us.
+            // For some reason, two samples are needed, at least with some drivers.
+            samples = 2;
+            colourSamples = 1;
+        }
+        attach(osg::Camera::COLOR_BUFFER, mRefractionTexture, 0, 0, false, samples, colourSamples);
 
         mRefractionDepthTexture = new osg::Texture2D;
         mRefractionDepthTexture->setTextureSize(rttSize, rttSize);
@@ -356,7 +366,17 @@ public:
         mReflectionTexture->setWrap(osg::Texture::WRAP_S, osg::Texture::CLAMP_TO_EDGE);
         mReflectionTexture->setWrap(osg::Texture::WRAP_T, osg::Texture::CLAMP_TO_EDGE);
 
-        attach(osg::Camera::COLOR_BUFFER, mReflectionTexture);
+        unsigned int samples = 0;
+        unsigned int colourSamples = 0;
+        if (Settings::Manager::getBool("convert alpha test to alpha-to-coverage", "Shaders"))
+        {
+            // Alpha-to-coverage requires a multisampled framebuffer.
+            // OSG will set that up automatically and resolve it to the specified single-sample texture for us.
+            // For some reason, two samples are needed, at least with some drivers.
+            samples = 2;
+            colourSamples = 1;
+        }
+        attach(osg::Camera::COLOR_BUFFER, mReflectionTexture, 0, 0, false, samples, colourSamples);
 
         // XXX: should really flip the FrontFace on each renderable instead of forcing clockwise.
         osg::ref_ptr<osg::FrontFace> frontFace (new osg::FrontFace);