diff --git a/services/surfaceflinger/CompositionEngine/include/compositionengine/LayerFECompositionState.h b/services/surfaceflinger/CompositionEngine/include/compositionengine/LayerFECompositionState.h
index 77400eb..5a3b9ac 100644
--- a/services/surfaceflinger/CompositionEngine/include/compositionengine/LayerFECompositionState.h
+++ b/services/surfaceflinger/CompositionEngine/include/compositionengine/LayerFECompositionState.h
@@ -20,6 +20,7 @@
 
 #include <gui/HdrMetadata.h>
 #include <math/mat4.h>
+#include <ui/BlurRegion.h>
 #include <ui/FloatRect.h>
 #include <ui/Rect.h>
 #include <ui/Region.h>
@@ -118,6 +119,9 @@
     // length of the shadow in screen space
     float shadowRadius{0.f};
 
+    // List of regions that require blur
+    std::vector<BlurRegion> blurRegions;
+
     /*
      * Geometry state
      */
diff --git a/services/surfaceflinger/CompositionEngine/src/Output.cpp b/services/surfaceflinger/CompositionEngine/src/Output.cpp
index c625b2e..3852f45 100644
--- a/services/surfaceflinger/CompositionEngine/src/Output.cpp
+++ b/services/surfaceflinger/CompositionEngine/src/Output.cpp
@@ -669,7 +669,8 @@
 compositionengine::OutputLayer* Output::findLayerRequestingBackgroundComposition() const {
     compositionengine::OutputLayer* layerRequestingBgComposition = nullptr;
     for (auto* layer : getOutputLayersOrderedByZ()) {
-        if (layer->getLayerFE().getCompositionState()->backgroundBlurRadius > 0) {
+        if (layer->getLayerFE().getCompositionState()->backgroundBlurRadius > 0 ||
+            layer->getLayerFE().getCompositionState()->blurRegions.size() > 0) {
             layerRequestingBgComposition = layer;
         }
     }
diff --git a/services/surfaceflinger/CompositionEngine/tests/OutputTest.cpp b/services/surfaceflinger/CompositionEngine/tests/OutputTest.cpp
index 3dd1839..9badb99 100644
--- a/services/surfaceflinger/CompositionEngine/tests/OutputTest.cpp
+++ b/services/surfaceflinger/CompositionEngine/tests/OutputTest.cpp
@@ -4014,6 +4014,34 @@
     mOutput->updateAndWriteCompositionState(args);
 }
 
+TEST_F(OutputUpdateAndWriteCompositionStateTest, handlesBlurRegionRequests) {
+    InjectedLayer layer1;
+    InjectedLayer layer2;
+    InjectedLayer layer3;
+
+    // Layer requesting blur, or below, should request client composition.
+    EXPECT_CALL(*layer1.outputLayer, updateCompositionState(false, true, ui::Transform::ROT_0));
+    EXPECT_CALL(*layer1.outputLayer, writeStateToHWC(false));
+    EXPECT_CALL(*layer2.outputLayer, updateCompositionState(false, true, ui::Transform::ROT_0));
+    EXPECT_CALL(*layer2.outputLayer, writeStateToHWC(false));
+    EXPECT_CALL(*layer3.outputLayer, updateCompositionState(false, false, ui::Transform::ROT_0));
+    EXPECT_CALL(*layer3.outputLayer, writeStateToHWC(false));
+
+    BlurRegion region;
+    layer2.layerFEState.blurRegions.push_back(region);
+
+    injectOutputLayer(layer1);
+    injectOutputLayer(layer2);
+    injectOutputLayer(layer3);
+
+    mOutput->editState().isEnabled = true;
+
+    CompositionRefreshArgs args;
+    args.updatingGeometryThisFrame = false;
+    args.devOptForceClientComposition = false;
+    mOutput->updateAndWriteCompositionState(args);
+}
+
 TEST_F(GenerateClientCompositionRequestsTest, handlesLandscapeModeSplitScreenRequests) {
     // In split-screen landscape mode, the screen is rotated 90 degrees, with
     // one layer on the left covering the left side of the output, and one layer
diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index f657a00..57493d2 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp
@@ -482,6 +482,7 @@
     compositionState->blendMode = static_cast<Hwc2::IComposerClient::BlendMode>(blendMode);
     compositionState->alpha = alpha;
     compositionState->backgroundBlurRadius = drawingState.backgroundBlurRadius;
+    compositionState->blurRegions = drawingState.blurRegions;
 }
 
 void Layer::prepareGeometryCompositionState() {
@@ -550,7 +551,8 @@
             isOpaque(drawingState) && !usesRoundedCorners && getAlpha() == 1.0_hf;
 
     // Force client composition for special cases known only to the front-end.
-    if (isHdrY410() || usesRoundedCorners || drawShadows()) {
+    if (isHdrY410() || usesRoundedCorners || drawShadows() ||
+        getDrawingState().blurRegions.size() > 0) {
         compositionState->forceClientComposition = true;
     }
 }
@@ -646,6 +648,7 @@
     layerSettings.alpha = alpha;
     layerSettings.sourceDataspace = getDataSpace();
     layerSettings.backgroundBlurRadius = getBackgroundBlurRadius();
+    layerSettings.blurRegions = getBlurRegions();
     return layerSettings;
 }
 
@@ -1285,6 +1288,14 @@
     return true;
 }
 
+bool Layer::setBlurRegions(const std::vector<BlurRegion>& blurRegions) {
+    mCurrentState.sequence++;
+    mCurrentState.blurRegions = blurRegions;
+    mCurrentState.modified = true;
+    setTransactionFlags(eTransactionNeeded);
+    return true;
+}
+
 bool Layer::setFlags(uint8_t flags, uint8_t mask) {
     const uint32_t newFlags = (mCurrentState.flags & ~mask) | (flags & mask);
     if (mCurrentState.flags == newFlags) return false;
@@ -2172,6 +2183,10 @@
     return getDrawingState().backgroundBlurRadius;
 }
 
+const std::vector<BlurRegion>& Layer::getBlurRegions() const {
+    return getDrawingState().blurRegions;
+}
+
 Layer::RoundedCornerState Layer::getRoundedCornerState() const {
     const auto& p = mDrawingParent.promote();
     if (p != nullptr) {
diff --git a/services/surfaceflinger/Layer.h b/services/surfaceflinger/Layer.h
index 7112cbc..5d6c7ea 100644
--- a/services/surfaceflinger/Layer.h
+++ b/services/surfaceflinger/Layer.h
@@ -26,6 +26,7 @@
 #include <renderengine/Mesh.h>
 #include <renderengine/Texture.h>
 #include <sys/types.h>
+#include <ui/BlurRegion.h>
 #include <ui/FloatRect.h>
 #include <ui/FrameStats.h>
 #include <ui/GraphicBuffer.h>
@@ -255,6 +256,9 @@
         // be rendered around the layer.
         float shadowRadius;
 
+        // Layer regions that are made of custom materials, like frosted glass
+        std::vector<BlurRegion> blurRegions;
+
         // Priority of the layer assigned by Window Manager.
         int32_t frameRateSelectionPriority;
 
@@ -391,6 +395,7 @@
     // When non-zero, everything below this layer will be blurred by backgroundBlurRadius, which
     // is specified in pixels.
     virtual bool setBackgroundBlurRadius(int backgroundBlurRadius);
+    virtual bool setBlurRegions(const std::vector<BlurRegion>& effectRegions);
     virtual bool setTransparentRegionHint(const Region& transparent);
     virtual bool setFlags(uint8_t flags, uint8_t mask);
     virtual bool setLayerStack(uint32_t layerStack);
@@ -1110,6 +1115,9 @@
     // final shadow radius for this layer. If a shadow is specified for a layer, then effective
     // shadow radius is the set shadow radius, otherwise its the parent's shadow radius.
     float mEffectiveShadowRadius = 0.f;
+
+    // A list of regions on this layer that should have blurs.
+    const std::vector<BlurRegion>& getBlurRegions() const;
 };
 
 } // namespace android
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 3977e2b..fa15d60 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -3684,6 +3684,9 @@
     if (what & layer_state_t::eBackgroundBlurRadiusChanged && !mDisableBlurs && mSupportsBlur) {
         if (layer->setBackgroundBlurRadius(s.backgroundBlurRadius)) flags |= eTraversalNeeded;
     }
+    if (what & layer_state_t::eBlurRegionsChanged) {
+        if (layer->setBlurRegions(s.blurRegions)) flags |= eTraversalNeeded;
+    }
     if (what & layer_state_t::eLayerStackChanged) {
         ssize_t idx = mCurrentState.layersSortedByZ.indexOf(layer);
         // We only allow setting layer stacks for top level layers,
diff --git a/services/surfaceflinger/SurfaceInterceptor.cpp b/services/surfaceflinger/SurfaceInterceptor.cpp
index 2d5566f..3548923 100644
--- a/services/surfaceflinger/SurfaceInterceptor.cpp
+++ b/services/surfaceflinger/SurfaceInterceptor.cpp
@@ -140,6 +140,7 @@
     addCropLocked(transaction, layerId, layer->mCurrentState.crop_legacy);
     addCornerRadiusLocked(transaction, layerId, layer->mCurrentState.cornerRadius);
     addBackgroundBlurRadiusLocked(transaction, layerId, layer->mCurrentState.backgroundBlurRadius);
+    addBlurRegionsLocked(transaction, layerId, layer->mCurrentState.blurRegions);
     if (layer->mCurrentState.barrierLayer_legacy != nullptr) {
         addDeferTransactionLocked(transaction, layerId,
                                   layer->mCurrentState.barrierLayer_legacy.promote(),
@@ -361,6 +362,25 @@
     blurRadiusChange->set_background_blur_radius(backgroundBlurRadius);
 }
 
+void SurfaceInterceptor::addBlurRegionsLocked(Transaction* transaction, int32_t layerId,
+                                              const std::vector<BlurRegion>& blurRegions) {
+    SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
+    BlurRegionsChange* blurRegionsChange(change->mutable_blur_regions());
+    for (const auto blurRegion : blurRegions) {
+        const auto blurRegionChange = blurRegionsChange->add_blur_regions();
+        blurRegionChange->set_blur_radius(blurRegion.blurRadius);
+        blurRegionChange->set_corner_radius_tl(blurRegion.cornerRadiusTL);
+        blurRegionChange->set_corner_radius_tr(blurRegion.cornerRadiusTR);
+        blurRegionChange->set_corner_radius_bl(blurRegion.cornerRadiusBL);
+        blurRegionChange->set_corner_radius_br(blurRegion.cornerRadiusBR);
+        blurRegionChange->set_alpha(blurRegion.alpha);
+        blurRegionChange->set_left(blurRegion.left);
+        blurRegionChange->set_top(blurRegion.top);
+        blurRegionChange->set_right(blurRegion.right);
+        blurRegionChange->set_bottom(blurRegion.bottom);
+    }
+}
+
 void SurfaceInterceptor::addDeferTransactionLocked(Transaction* transaction, int32_t layerId,
         const sp<const Layer>& layer, uint64_t frameNumber)
 {
@@ -456,6 +476,9 @@
     if (state.what & layer_state_t::eBackgroundBlurRadiusChanged) {
         addBackgroundBlurRadiusLocked(transaction, layerId, state.backgroundBlurRadius);
     }
+    if (state.what & layer_state_t::eBlurRegionsChanged) {
+        addBlurRegionsLocked(transaction, layerId, state.blurRegions);
+    }
     if (state.what & layer_state_t::eDeferTransaction_legacy) {
         sp<Layer> otherLayer = nullptr;
         if (state.barrierSurfaceControl_legacy != nullptr) {
diff --git a/services/surfaceflinger/SurfaceInterceptor.h b/services/surfaceflinger/SurfaceInterceptor.h
index 97ff547..3df79c6 100644
--- a/services/surfaceflinger/SurfaceInterceptor.h
+++ b/services/surfaceflinger/SurfaceInterceptor.h
@@ -165,6 +165,8 @@
     void addCornerRadiusLocked(Transaction* transaction, int32_t layerId, float cornerRadius);
     void addBackgroundBlurRadiusLocked(Transaction* transaction, int32_t layerId,
                                        int32_t backgroundBlurRadius);
+    void addBlurRegionsLocked(Transaction* transaction, int32_t layerId,
+                              const std::vector<BlurRegion>& effectRegions);
     void addDeferTransactionLocked(Transaction* transaction, int32_t layerId,
             const sp<const Layer>& layer, uint64_t frameNumber);
     void addSurfaceChangesLocked(Transaction* transaction, const layer_state_t& state);
diff --git a/services/surfaceflinger/layerproto/layers.proto b/services/surfaceflinger/layerproto/layers.proto
index f3f5626..9f25674 100644
--- a/services/surfaceflinger/layerproto/layers.proto
+++ b/services/surfaceflinger/layerproto/layers.proto
@@ -125,6 +125,9 @@
   int32 background_blur_radius = 52;
 
   uint32 owner_uid = 53;
+
+  // Regions of a layer, where blur should be applied.
+  repeated BlurRegion blur_regions = 54;
 }
 
 message PositionProto {
@@ -211,3 +214,16 @@
   // This will be a 4x4 matrix of float values
   repeated float val = 1;
 }
+
+message BlurRegion {
+    uint32 blur_radius = 1;
+    uint32 corner_radius_tl = 2;
+    uint32 corner_radius_tr = 3;
+    uint32 corner_radius_bl = 4;
+    float corner_radius_br = 5;
+    float alpha = 6;
+    int32 left = 7;
+    int32 top = 8;
+    int32 right = 9;
+    int32 bottom = 10;
+}
\ No newline at end of file
diff --git a/services/surfaceflinger/tests/SurfaceInterceptor_test.cpp b/services/surfaceflinger/tests/SurfaceInterceptor_test.cpp
index a5a569b..81e648a 100644
--- a/services/surfaceflinger/tests/SurfaceInterceptor_test.cpp
+++ b/services/surfaceflinger/tests/SurfaceInterceptor_test.cpp
@@ -51,6 +51,7 @@
 constexpr float POSITION_UPDATE = 121;
 const Rect CROP_UPDATE(16, 16, 32, 32);
 const float SHADOW_RADIUS_UPDATE = 35.0f;
+std::vector<BlurRegion> BLUR_REGIONS_UPDATE;
 
 const String8 DISPLAY_NAME("SurfaceInterceptor Display Test");
 constexpr auto TEST_BG_SURFACE_NAME = "BG Interceptor Test Surface";
@@ -181,6 +182,7 @@
     bool cornerRadiusUpdateFound(const SurfaceChange& change, bool foundCornerRadius);
     bool backgroundBlurRadiusUpdateFound(const SurfaceChange& change,
                                          bool foundBackgroundBlurRadius);
+    bool blurRegionsUpdateFound(const SurfaceChange& change, bool foundBlurRegions);
     bool matrixUpdateFound(const SurfaceChange& change, bool foundMatrix);
     bool scalingModeUpdateFound(const SurfaceChange& change, bool foundScalingMode);
     bool transparentRegionHintUpdateFound(const SurfaceChange& change, bool foundTransparentRegion);
@@ -219,6 +221,7 @@
     void cropUpdate(Transaction&);
     void cornerRadiusUpdate(Transaction&);
     void backgroundBlurRadiusUpdate(Transaction&);
+    void blurRegionsUpdate(Transaction&);
     void matrixUpdate(Transaction&);
     void transparentRegionHintUpdate(Transaction&);
     void layerStackUpdate(Transaction&);
@@ -357,6 +360,12 @@
     t.setBackgroundBlurRadius(mBGSurfaceControl, BACKGROUND_BLUR_RADIUS_UPDATE);
 }
 
+void SurfaceInterceptorTest::blurRegionsUpdate(Transaction& t) {
+    BLUR_REGIONS_UPDATE.empty();
+    BLUR_REGIONS_UPDATE.push_back(BlurRegion());
+    t.setBlurRegions(mBGSurfaceControl, BLUR_REGIONS_UPDATE);
+}
+
 void SurfaceInterceptorTest::layerUpdate(Transaction& t) {
     t.setLayer(mBGSurfaceControl, LAYER_UPDATE);
 }
@@ -430,6 +439,7 @@
     runInTransaction(&SurfaceInterceptorTest::alphaUpdate);
     runInTransaction(&SurfaceInterceptorTest::cornerRadiusUpdate);
     runInTransaction(&SurfaceInterceptorTest::backgroundBlurRadiusUpdate);
+    runInTransaction(&SurfaceInterceptorTest::blurRegionsUpdate);
     runInTransaction(&SurfaceInterceptorTest::layerUpdate);
     runInTransaction(&SurfaceInterceptorTest::cropUpdate);
     runInTransaction(&SurfaceInterceptorTest::matrixUpdate);
@@ -518,6 +528,17 @@
     return foundBackgroundBlur;
 }
 
+bool SurfaceInterceptorTest::blurRegionsUpdateFound(const SurfaceChange& change,
+                                                    bool foundBlurRegions) {
+    bool hasBlurRegions(change.blur_regions().blur_regions_size() == BLUR_REGIONS_UPDATE.size());
+    if (hasBlurRegions && !foundBlurRegions) {
+        foundBlurRegions = true;
+    } else if (hasBlurRegions && foundBlurRegions) {
+        []() { FAIL(); }();
+    }
+    return foundBlurRegions;
+}
+
 bool SurfaceInterceptorTest::layerUpdateFound(const SurfaceChange& change, bool foundLayer) {
     bool hasLayer(change.layer().layer() == LAYER_UPDATE);
     if (hasLayer && !foundLayer) {
@@ -706,6 +727,9 @@
                         case SurfaceChange::SurfaceChangeCase::kBackgroundBlurRadius:
                             foundUpdate = backgroundBlurRadiusUpdateFound(change, foundUpdate);
                             break;
+                        case SurfaceChange::SurfaceChangeCase::kBlurRegions:
+                            foundUpdate = blurRegionsUpdateFound(change, foundUpdate);
+                            break;
                         case SurfaceChange::SurfaceChangeCase::kMatrix:
                             foundUpdate = matrixUpdateFound(change, foundUpdate);
                             break;
@@ -889,6 +913,11 @@
                 SurfaceChange::SurfaceChangeCase::kBackgroundBlurRadius);
 }
 
+TEST_F(SurfaceInterceptorTest, InterceptBlurRegionsUpdateWorks) {
+    captureTest(&SurfaceInterceptorTest::blurRegionsUpdate,
+                SurfaceChange::SurfaceChangeCase::kBlurRegions);
+}
+
 TEST_F(SurfaceInterceptorTest, InterceptMatrixUpdateWorks) {
     captureTest(&SurfaceInterceptorTest::matrixUpdate, SurfaceChange::SurfaceChangeCase::kMatrix);
 }