Merge pull request #748 from secondlife/geenz/mirror-masking

Add mirrors prototype UI + data model

12 files changed, 166 insertions, 250 deletions

diff --git a/indra/llprimitive/llprimitive.cpp b/indra/llprimitive/llprimitive.cpp
index f67959de5b..53d09df618 100644
--- a/indra/llprimitive/llprimitive.cpp
+++ b/indra/llprimitive/llprimitive.cpp
@@ -1825,40 +1825,6 @@ bool LLLightParams::fromLLSD(LLSD& sd)
 
 //============================================================================
 
-LLMirrorParams::LLMirrorParams()
-{
-    mType = PARAMS_MIRROR;
-}
-
-BOOL LLMirrorParams::pack(LLDataPacker &dp) const
-{
-    return TRUE;
-}
-
-BOOL LLMirrorParams::unpack(LLDataPacker &dp)
-{
-    return TRUE;
-}
-
-bool LLMirrorParams::operator==(const LLNetworkData& data) const
-{
-    if (data.mType != PARAMS_REFLECTION_PROBE)
-    {
-        return false;
-    }
-    return true;
-}
-
-void LLMirrorParams::copy(const LLNetworkData& data)
-{
-    const LLMirrorParams *param = (LLMirrorParams*)&data;
-    mType = param->mType;
-}
-
-//============================================================================
-
-//============================================================================
-
 LLReflectionProbeParams::LLReflectionProbeParams()
 {
     mType = PARAMS_REFLECTION_PROBE;
@@ -1968,6 +1934,19 @@ void LLReflectionProbeParams::setIsDynamic(bool is_dynamic)
     }
 }
 
+
+void LLReflectionProbeParams::setIsMirror(bool is_mirror)
+{
+    if (is_mirror)
+    {
+        mFlags |= FLAG_MIRROR;
+    }
+    else
+    {
+        mFlags &= ~FLAG_MIRROR;
+    }
+}
+
 //============================================================================
 LLFlexibleObjectData::LLFlexibleObjectData()
 {
diff --git a/indra/llprimitive/llprimitive.h b/indra/llprimitive/llprimitive.h
index 88bac34ef2..5622483861 100644
--- a/indra/llprimitive/llprimitive.h
+++ b/indra/llprimitive/llprimitive.h
@@ -109,7 +109,6 @@ public:
         PARAMS_EXTENDED_MESH = 0x70,
         PARAMS_RENDER_MATERIAL = 0x80,
         PARAMS_REFLECTION_PROBE = 0x90,
-        PARAMS_MIRROR = 0x100,
 	};
 	
 public:
@@ -173,16 +172,6 @@ public:
 	F32 getCutoff() const					{ return mCutoff; }
 };
 
-class LLMirrorParams : public LLNetworkData
-{
-public:
-    LLMirrorParams();
-    /*virtual*/ BOOL pack(LLDataPacker &dp) const;
-    /*virtual*/ BOOL unpack(LLDataPacker &dp);
-    /*virtual*/ bool operator==(const LLNetworkData& data) const;
-    /*virtual*/ void copy(const LLNetworkData& data);
-};
-
 extern const F32 REFLECTION_PROBE_MIN_AMBIANCE;
 extern const F32 REFLECTION_PROBE_MAX_AMBIANCE;
 extern const F32 REFLECTION_PROBE_DEFAULT_AMBIANCE;
@@ -197,6 +186,7 @@ public:
     {
         FLAG_BOX_VOLUME     = 0x01, // use a box influence volume
         FLAG_DYNAMIC        = 0x02, // render dynamic objects (avatars) into this Reflection Probe
+		FLAG_MIRROR			= 0x04, // This probe is used for reflections on realtime mirrors.
     };
 
 protected:
@@ -220,11 +210,13 @@ public:
     void setClipDistance(F32 distance) { mClipDistance = llclamp(distance, REFLECTION_PROBE_MIN_CLIP_DISTANCE, REFLECTION_PROBE_MAX_CLIP_DISTANCE); }
     void setIsBox(bool is_box);
     void setIsDynamic(bool is_dynamic);
+    void setIsMirror(bool is_mirror);
 
     F32 getAmbiance() const { return mAmbiance; }
     F32 getClipDistance() const { return mClipDistance; }
     bool getIsBox() const { return (mFlags & FLAG_BOX_VOLUME) != 0; }
     bool getIsDynamic() const { return (mFlags & FLAG_DYNAMIC) != 0; }
+    bool getIsMirror() const { return (mFlags & FLAG_MIRROR) != 0; }
 };
 
 //-------------------------------------------------
diff --git a/indra/newview/app_settings/settings.xml b/indra/newview/app_settings/settings.xml
index f2ba4ba29e..ef51c7f0dc 100644
--- a/indra/newview/app_settings/settings.xml
+++ b/indra/newview/app_settings/settings.xml
@@ -10421,7 +10421,7 @@
         <key>Type</key>
         <string>S32</string>
         <key>Value</key>
-        <integer>2048</integer>
+        <integer>1024</integer>
     </map>
 	<key>RenderHeroProbeDistance</key>
 	<map>
diff --git a/indra/newview/llheroprobemanager.cpp b/indra/newview/llheroprobemanager.cpp
index 39f5bdec5a..c9728b8d93 100644
--- a/indra/newview/llheroprobemanager.cpp
+++ b/indra/newview/llheroprobemanager.cpp
@@ -127,38 +127,22 @@ void LLHeroProbeManager::update()
                 else
                 {
                     // Valid drawables only please.  Unregister this one.
-                    unregisterHeroDrawable(vo);
+                    unregisterViewerObject(vo);
                 }
             }
             else
             {
-                unregisterHeroDrawable(vo);
+                unregisterViewerObject(vo);
             }
         }
 
         if (mNearestHero != nullptr && mNearestHero->mDrawable.notNull())
         {
-            U8        mode     = mNearestHero->mirrorFace();
-            mode    = llmin(mNearestHero->mDrawable->getNumFaces() - 1, mode);
-
-            mCurrentFace       = mNearestHero->mDrawable->getFace(mode);
-            LLVector3 hero_pos = mCurrentFace->getPositionAgent();
-
-
-            // Calculate the average normal.
-            LLVector4a *posp = mCurrentFace->getViewerObject()->getVolume()->getVolumeFace(mCurrentFace->getTEOffset()).mPositions;
-            U16        *indp = mCurrentFace->getViewerObject()->getVolume()->getVolumeFace(mCurrentFace->getTEOffset()).mIndices;
-            // get first three vertices (first triangle)
-            LLVector4a v0 = posp[indp[0]];
-            LLVector4a   v1 = posp[indp[1]];
-            LLVector4a   v2 = posp[indp[2]];
-
-            v1.sub(v0);
-            v2.sub(v0);
-            LLVector3 face_normal = LLVector3(v1[0], v1[1], v1[2]) % LLVector3(v2[0], v2[1], v2[2]);
+            LLVector3 hero_pos = mNearestHero->getPositionAgent();
+            LLVector3 face_normal = LLVector3(0, 0, 1);
 
+            face_normal *= mNearestHero->mDrawable->getXform()->getWorldRotation();
             face_normal.normalize();
-            face_normal *= mCurrentFace->getXform()->getWorldRotation();
 
             LLVector3 offset = camera_pos - hero_pos;
             LLVector3 project = face_normal * (offset * face_normal);
@@ -166,7 +150,7 @@ void LLHeroProbeManager::update()
             LLVector3 point   = (reject - project) + hero_pos;
 
             mCurrentClipPlane.setVec(hero_pos, face_normal);
-            mMirrorPosition = mNearestHero->getPositionAgent();
+            mMirrorPosition = hero_pos;
             mMirrorNormal   = face_normal;
         
 
@@ -254,6 +238,30 @@ void LLHeroProbeManager::updateProbeFace(LLReflectionMap* probe, U32 face, F32 n
 
         LLRenderTarget *screen_rt = &gPipeline.mHeroProbeRT.screen;
         LLRenderTarget *depth_rt  = &gPipeline.mHeroProbeRT.deferredScreen;
+        
+        // perform a gaussian blur on the super sampled render before downsampling
+        {
+            gGaussianProgram.bind();
+            gGaussianProgram.uniform1f(resScale, 1.f / (mProbeResolution * 2));
+            S32 diffuseChannel = gGaussianProgram.enableTexture(LLShaderMgr::DEFERRED_DIFFUSE, LLTexUnit::TT_TEXTURE);
+
+            // horizontal
+            gGaussianProgram.uniform2f(direction, 1.f, 0.f);
+            gGL.getTexUnit(diffuseChannel)->bind(screen_rt);
+            mRenderTarget.bindTarget();
+            gPipeline.mScreenTriangleVB->setBuffer();
+            gPipeline.mScreenTriangleVB->drawArrays(LLRender::TRIANGLES, 0, 3);
+            mRenderTarget.flush();
+
+            // vertical
+            gGaussianProgram.uniform2f(direction, 0.f, 1.f);
+            gGL.getTexUnit(diffuseChannel)->bind(&mRenderTarget);
+            screen_rt->bindTarget();
+            gPipeline.mScreenTriangleVB->setBuffer();
+            gPipeline.mScreenTriangleVB->drawArrays(LLRender::TRIANGLES, 0, 3);
+            screen_rt->flush();
+            gGaussianProgram.unbind();
+        }
 
         S32 mips = log2((F32)mProbeResolution) + 0.5f;
 
@@ -527,24 +535,21 @@ void LLHeroProbeManager::doOcclusion()
     }
 }
 
-void LLHeroProbeManager::registerHeroDrawable(LLVOVolume* drawablep)
+void LLHeroProbeManager::registerViewerObject(LLVOVolume* drawablep)
 {
+    llassert(drawablep != nullptr);
+
     if (mHeroVOList.find(drawablep) == mHeroVOList.end())
     {
+        // Probe isn't in our list for consideration.  Add it.
         mHeroVOList.insert(drawablep);
-        LL_INFOS() << "Mirror drawable registered." << LL_ENDL;
     }
 }
 
-void LLHeroProbeManager::unregisterHeroDrawable(LLVOVolume* drawablep)
+void LLHeroProbeManager::unregisterViewerObject(LLVOVolume* drawablep)
 {
     if (mHeroVOList.find(drawablep) != mHeroVOList.end())
     {
         mHeroVOList.erase(drawablep);
     }
 }
-
-bool LLHeroProbeManager::isViableMirror(LLFace* face) const
-{
-    return face == mCurrentFace;
-}
diff --git a/indra/newview/llheroprobemanager.h b/indra/newview/llheroprobemanager.h
index 0b32768bb1..7485a8cd72 100644
--- a/indra/newview/llheroprobemanager.h
+++ b/indra/newview/llheroprobemanager.h
@@ -68,10 +68,8 @@ public:
     // perform occlusion culling on all active reflection probes
     void doOcclusion();
 
-    void registerHeroDrawable(LLVOVolume* drawablep);
-    void unregisterHeroDrawable(LLVOVolume* drawablep);
-
-    bool isViableMirror(LLFace* face) const;
+    void registerViewerObject(LLVOVolume *drawablep);
+    void unregisterViewerObject(LLVOVolume* drawablep);
 
     bool isMirrorPass() const { return mRenderingMirror; }
 
@@ -140,6 +138,5 @@ private:
     
     std::set<LLVOVolume*>               mHeroVOList;
     LLVOVolume*                         mNearestHero;
-    LLFace*                             mCurrentFace;
 };
 
diff --git a/indra/newview/llpanelvolume.cpp b/indra/newview/llpanelvolume.cpp
index a306a0a9ac..e0d95c5386 100644
--- a/indra/newview/llpanelvolume.cpp
+++ b/indra/newview/llpanelvolume.cpp
@@ -114,11 +114,6 @@ BOOL	LLPanelVolume::postBuild()
 		getChild<LLUICtrl>("FlexForceZ")->setValidateBeforeCommit(precommitValidate);
 	}
 
-    // Mirror Parameters
-    {
-        childSetCommitCallback("Mirror Checkbox Ctrl", onCommitIsMirror, this);
-    }
-    
 	// LIGHT Parameters
 	{
 		childSetCommitCallback("Light Checkbox Ctrl",onCommitIsLight,this);
@@ -155,7 +150,7 @@ BOOL	LLPanelVolume::postBuild()
     // REFLECTION PROBE Parameters
     {
         childSetCommitCallback("Reflection Probe", onCommitIsReflectionProbe, this);
-        childSetCommitCallback("Probe Dynamic", onCommitProbe, this);
+        childSetCommitCallback("Probe Update Type", onCommitProbe, this);
         childSetCommitCallback("Probe Volume Type", onCommitProbe, this);
         childSetCommitCallback("Probe Ambiance", onCommitProbe, this);
         childSetCommitCallback("Probe Near Clip", onCommitProbe, this);
@@ -309,10 +304,6 @@ void LLPanelVolume::getState( )
 		getChildView("select_single")->setVisible(true);
 		getChildView("select_single")->setEnabled(true);
 	}
-	
-    BOOL is_mirror = volobjp && volobjp->isMirror();
-    getChild<LLUICtrl>("Mirror Checkbox Ctrl")->setValue(is_mirror);
-    getChildView("Mirror Checkbox Ctrl")->setEnabled(editable && single_volume && volobjp);
     
 	// Light properties
 	BOOL is_light = volobjp && volobjp->getIsLight();
@@ -401,17 +392,18 @@ void LLPanelVolume::getState( )
 
     bool probe_enabled = is_probe && editable && single_volume;
 
-    getChildView("Probe Dynamic")->setEnabled(probe_enabled);
+    getChildView("Probe Update Type")->setEnabled(probe_enabled);
     getChildView("Probe Volume Type")->setEnabled(probe_enabled);
     getChildView("Probe Ambiance")->setEnabled(probe_enabled);
     getChildView("Probe Near Clip")->setEnabled(probe_enabled);
+    getChildView("Probe Update Label")->setEnabled(probe_enabled);
 
     if (!probe_enabled)
     {
         getChild<LLComboBox>("Probe Volume Type", true)->clear();
         getChild<LLSpinCtrl>("Probe Ambiance", true)->clear();
         getChild<LLSpinCtrl>("Probe Near Clip", true)->clear();
-        getChild<LLCheckBoxCtrl>("Probe Dynamic", true)->clear();
+        getChild<LLComboBox>("Probe Update Type", true)->clear();
     }
     else
     {
@@ -425,10 +417,28 @@ void LLPanelVolume::getState( )
             volume_type = "Sphere";
         }
 
+		std::string update_type;
+        if (volobjp->getReflectionProbeIsDynamic())
+        {
+            update_type = "Dynamic";
+        }
+        else if (volobjp->getReflectionProbeIsMirror())
+        {
+            update_type = "Mirror";
+
+        }
+        else
+        {
+            update_type = "Static";
+		}
+
+        getChildView("Probe Ambiance")->setEnabled(update_type != "Mirror");
+        getChildView("Probe Near Clip")->setEnabled(update_type != "Mirror");
+
         getChild<LLComboBox>("Probe Volume Type", true)->setValue(volume_type);
         getChild<LLSpinCtrl>("Probe Ambiance", true)->setValue(volobjp->getReflectionProbeAmbiance());
         getChild<LLSpinCtrl>("Probe Near Clip", true)->setValue(volobjp->getReflectionProbeNearClip());
-        getChild<LLCheckBoxCtrl>("Probe Dynamic", true)->setValue(volobjp->getReflectionProbeIsDynamic());
+        getChild<LLComboBox>("Probe Update Type", true)->setValue(update_type);
     }
 
     // Animated Mesh
@@ -715,7 +725,7 @@ void LLPanelVolume::clearCtrls()
 
     getChildView("Reflection Probe")->setEnabled(false);;
     getChildView("Probe Volume Type")->setEnabled(false);
-    getChildView("Probe Dynamic")->setEnabled(false);
+    getChildView("Probe Update Type")->setEnabled(false);
     getChildView("Probe Ambiance")->setEnabled(false);
     getChildView("Probe Near Clip")->setEnabled(false);
     getChildView("Animated Mesh Checkbox Ctrl")->setEnabled(false);
@@ -755,20 +765,6 @@ void LLPanelVolume::sendIsLight()
 	LL_INFOS() << "update light sent" << LL_ENDL;
 }
 
-void LLPanelVolume::sendIsMirror()
-{
-    LLViewerObject* objectp = mObject;
-    if (!objectp || (objectp->getPCode() != LL_PCODE_VOLUME))
-    {
-        return;
-    }
-    LLVOVolume *volobjp = (LLVOVolume *)objectp;
-    
-    BOOL value = getChild<LLUICtrl>("Mirror Checkbox Ctrl")->getValue();
-    volobjp->setIsMirror(value);
-    LL_INFOS() << "update mirror sent" << LL_ENDL;
-}
-
 void notify_cant_select_reflection_probe()
 {
     if (!gSavedSettings.getBOOL("SelectReflectionProbes"))
@@ -1422,7 +1418,14 @@ void LLPanelVolume::onCommitProbe(LLUICtrl* ctrl, void* userdata)
 
     volobjp->setReflectionProbeAmbiance((F32)self->getChild<LLUICtrl>("Probe Ambiance")->getValue().asReal());
     volobjp->setReflectionProbeNearClip((F32)self->getChild<LLUICtrl>("Probe Near Clip")->getValue().asReal());
-    volobjp->setReflectionProbeIsDynamic(self->getChild<LLUICtrl>("Probe Dynamic")->getValue().asBoolean());
+
+    std::string update_type = self->getChild<LLUICtrl>("Probe Update Type")->getValue().asString();
+
+	volobjp->setReflectionProbeIsDynamic(update_type == "Dynamic");
+    volobjp->setReflectionProbeIsMirror(update_type == "Mirror");
+
+    self->getChildView("Probe Ambiance")->setEnabled(update_type != "Mirror");
+    self->getChildView("Probe Near Clip")->setEnabled(update_type != "Mirror");
 
     std::string shape_type = self->getChild<LLUICtrl>("Probe Volume Type")->getValue().asString();
 
@@ -1469,12 +1472,6 @@ void LLPanelVolume::onCommitIsLight( LLUICtrl* ctrl, void* userdata )
 	self->sendIsLight();
 }
 
-void LLPanelVolume::onCommitIsMirror( LLUICtrl* ctrl, void* userdata )
-{
-    LLPanelVolume* self = (LLPanelVolume*) userdata;
-    self->sendIsMirror();
-}
-
 // static
 void LLPanelVolume::setLightTextureID(const LLUUID &asset_id, const LLUUID &item_id, LLVOVolume* volobjp)
 {
diff --git a/indra/newview/llpanelvolume.h b/indra/newview/llpanelvolume.h
index a658351624..aafefa918f 100644
--- a/indra/newview/llpanelvolume.h
+++ b/indra/newview/llpanelvolume.h
@@ -57,8 +57,7 @@ public:
 	void			refresh();
 
 	void			sendIsLight();
-    
-    void            sendIsMirror();
+
     // when an object is becoming a refleciton probe, present a dialog asking for confirmation
     // otherwise, send the reflection probe update immediately
     void            sendIsReflectionProbe();
@@ -72,7 +71,6 @@ public:
 	
 	static void 	onCommitIsLight(		LLUICtrl* ctrl, void* userdata);
 	static void 	onCommitLight(			LLUICtrl* ctrl, void* userdata);
-    static void     onCommitIsMirror(       LLUICtrl* ctrl, void* userdata);
     static void 	onCommitIsReflectionProbe(LLUICtrl* ctrl, void* userdata);
     static void     onCommitProbe(LLUICtrl* ctrl, void* userdata);
 	void 			onCommitIsFlexible(		LLUICtrl* ctrl, void* userdata);
diff --git a/indra/newview/llviewerobject.cpp b/indra/newview/llviewerobject.cpp
index 691a2e14d3..d71814bd3f 100644
--- a/indra/newview/llviewerobject.cpp
+++ b/indra/newview/llviewerobject.cpp
@@ -313,9 +313,7 @@ LLViewerObject::LLViewerObject(const LLUUID &id, const LLPCode pcode, LLViewerRe
 	mLastUpdateCached(FALSE),
 	mCachedMuteListUpdateTime(0),
 	mCachedOwnerInMuteList(false),
-	mRiggedAttachedWarned(false),
-	mIsMirror(false),
-	mMirrorFace(3)
+	mRiggedAttachedWarned(false)
 {
 	if (!is_global)
 	{
@@ -1149,39 +1147,6 @@ U32 LLViewerObject::extractSpatialExtents(LLDataPackerBinaryBuffer *dp, LLVector
 	return parent_id;
 }
 
-void detectMirror(const std::string &str, bool &mirror, U8 &mode)
-{
-    
-    std::stringstream ss(str);
-    std::string word;
-    while (ss >> word)
-    {
-        if (word == "IsMirror")
-        {
-            mirror = true;
-        }
-
-		if (mirror)
-		{
-			bool num = false;
-            std::string::const_iterator it = word.begin();
-            while (it != word.end())
-            {
-                num = std::isdigit(*it);
-                ++it;
-
-				if (!num)
-					break;
-            }
-
-			if (num)
-			{
-                mode = atoi(word.c_str());
-			}
-		}
-    }
-}
-
 U32 LLViewerObject::processUpdateMessage(LLMessageSystem *mesgsys,
 					 void **user_data,
 					 U32 block_num,
@@ -1557,8 +1522,6 @@ U32 LLViewerObject::processUpdateMessage(LLMessageSystem *mesgsys,
 
 					std::string temp_string;
 					mesgsys->getStringFast(_PREHASH_ObjectData, _PREHASH_Text, temp_string, block_num );
-					
-                    detectMirror(temp_string, mIsMirror, mMirrorFace);
                     
 					LLColor4U coloru;
 					mesgsys->getBinaryDataFast(_PREHASH_ObjectData, _PREHASH_TextColor, coloru.mV, 4, block_num);
@@ -1946,8 +1909,6 @@ U32 LLViewerObject::processUpdateMessage(LLMessageSystem *mesgsys,
 					std::string temp_string;
 					dp->unpackString(temp_string, "Text");
                     
-                    detectMirror(temp_string, mIsMirror, mMirrorFace);
-                    
 					LLColor4U coloru;
 					dp->unpackBinaryDataFixed(coloru.mV, 4, "Color");
 					coloru.mV[3] = 255 - coloru.mV[3];
@@ -6328,11 +6289,6 @@ LLViewerObject::ExtraParameter* LLViewerObject::createNewParameterEntry(U16 para
           new_block = new LLReflectionProbeParams();
           break;
       }
-      case LLNetworkData::PARAMS_MIRROR:
-      {
-          new_block = new LLMirrorParams();
-          break;
-      }
 	  default:
 	  {
 		  LL_INFOS_ONCE() << "Unknown param type: " << param_type << LL_ENDL;
diff --git a/indra/newview/llviewerobject.h b/indra/newview/llviewerobject.h
index f3c00e83dc..80da7b2f73 100644
--- a/indra/newview/llviewerobject.h
+++ b/indra/newview/llviewerobject.h
@@ -257,8 +257,6 @@ public:
 	virtual BOOL isRiggedMesh() const				{ return FALSE; }
 	virtual BOOL hasLightTexture() const			{ return FALSE; }
     virtual BOOL isReflectionProbe() const          { return FALSE; }
-    virtual BOOL isMirror() const                   { return FALSE; }
-    virtual U8   mirrorFace() const					{ return 0; }
 
 	// This method returns true if the object is over land owned by
 	// the agent, one of its groups, or it encroaches and 
@@ -880,9 +878,6 @@ protected:
 	F32 mPhysicsCost;
 	F32 mLinksetPhysicsCost;
     
-    bool    mIsMirror;
-    U8      mMirrorFace;
-    
     // If true, "shrink wrap" this volume in its spatial partition.  See "shrinkWrap"
     bool mShouldShrinkWrap = false;
 
diff --git a/indra/newview/llvovolume.cpp b/indra/newview/llvovolume.cpp
index 9813039145..54e0a0113d 100644
--- a/indra/newview/llvovolume.cpp
+++ b/indra/newview/llvovolume.cpp
@@ -249,9 +249,6 @@ LLVOVolume::~LLVOVolume()
 	mTextureAnimp = NULL;
 	delete mVolumeImpl;
 	mVolumeImpl = NULL;
-    
-    if (mIsMirror)
-        gPipeline.mHeroProbeManager.unregisterHeroDrawable(this);
 
 	gMeshRepo.unregisterMesh(this);
 
@@ -1000,11 +997,6 @@ LLDrawable *LLVOVolume::createDrawable(LLPipeline *pipeline)
         updateReflectionProbePtr();
     }
     
-    if (isMirror())
-    {
-        gPipeline.mHeroProbeManager.registerHeroDrawable(this);
-    }
-    
 	updateRadius();
 	bool force_update = true; // avoid non-alpha mDistance update being optimized away
 	mDrawable->updateDistance(*LLViewerCamera::getInstance(), force_update);
@@ -3327,48 +3319,6 @@ F32 LLVOVolume::getLightCutoff() const
 	}
 }
 
-bool LLVOVolume::setIsMirror(BOOL is_mirror)
-{
-    BOOL was_mirror = isMirror();
-    if (is_mirror != was_mirror)
-    {
-        if (is_mirror)
-        {
-            setParameterEntryInUse(LLNetworkData::PARAMS_MIRROR, TRUE, true);
-        }
-        else
-        {
-            setParameterEntryInUse(LLNetworkData::PARAMS_MIRROR, FALSE, true);
-        }
-    }
-    
-    updateMirrorDrawable();
-    
-    return was_mirror != is_mirror;
-}
-
-void LLVOVolume::updateMirrorDrawable()
-{
-    if (isMirror())
-    {
-        gPipeline.mHeroProbeManager.registerHeroDrawable(this);
-    }
-    else
-    {
-        gPipeline.mHeroProbeManager.unregisterHeroDrawable(this);
-    }
-}
-
-BOOL LLVOVolume::isMirror() const
-{
-    return mIsMirror;
-}
-
-U8 LLVOVolume::mirrorFace() const
-{
-    return mMirrorFace;
-}
-
 BOOL LLVOVolume::isReflectionProbe() const
 {
     return getParameterEntryInUse(LLNetworkData::PARAMS_REFLECTION_PROBE);
@@ -3458,6 +3408,22 @@ bool LLVOVolume::setReflectionProbeIsDynamic(bool is_dynamic)
     return false;
 }
 
+bool LLVOVolume::setReflectionProbeIsMirror(bool is_mirror)
+{
+    LLReflectionProbeParams *param_block = (LLReflectionProbeParams *) getParameterEntry(LLNetworkData::PARAMS_REFLECTION_PROBE);
+    if (param_block)
+    {
+        if (param_block->getIsMirror() != is_mirror)
+        {
+            param_block->setIsMirror(is_mirror);
+            parameterChanged(LLNetworkData::PARAMS_REFLECTION_PROBE, true);
+            return true;
+        }
+    }
+
+    return false;
+}
+
 F32 LLVOVolume::getReflectionProbeAmbiance() const
 {
     const LLReflectionProbeParams* param_block = (const LLReflectionProbeParams*)getParameterEntry(LLNetworkData::PARAMS_REFLECTION_PROBE);
@@ -3506,6 +3472,18 @@ bool LLVOVolume::getReflectionProbeIsDynamic() const
     return false;
 }
 
+bool LLVOVolume::getReflectionProbeIsMirror() const
+{
+    const LLReflectionProbeParams *param_block =
+        (const LLReflectionProbeParams *) getParameterEntry(LLNetworkData::PARAMS_REFLECTION_PROBE);
+    if (param_block)
+    {
+        return param_block->getIsMirror();
+    }
+
+    return false;
+}
+
 U32 LLVOVolume::getVolumeInterfaceID() const
 {
 	if (mVolumeImpl)
@@ -4419,25 +4397,34 @@ void LLVOVolume::parameterChanged(U16 param_type, LLNetworkData* data, BOOL in_u
 	}
    
     updateReflectionProbePtr();
-    
-    if (isMirror())
-        gPipeline.mHeroProbeManager.registerHeroDrawable(this);
-    else
-        gPipeline.mHeroProbeManager.unregisterHeroDrawable(this);
 }
 
 void LLVOVolume::updateReflectionProbePtr()
 {
     if (isReflectionProbe())
     {
-        if (mReflectionProbe.isNull())
+        if (mReflectionProbe.isNull() && !getReflectionProbeIsMirror())
         {
             mReflectionProbe = gPipeline.mReflectionMapManager.registerViewerObject(this);
         }
+        else if (mReflectionProbe.isNull() && getReflectionProbeIsMirror())
+		{
+			// Geenz: This is a special case - what we want here is a hero probe.
+			// What we want to do here is instantiate a hero probe from the hero probe manager.
+            gPipeline.mHeroProbeManager.registerViewerObject(this);
+		}
     }
-    else if (mReflectionProbe.notNull())
+    else if (mReflectionProbe.notNull() || getReflectionProbeIsMirror())
     {
-        mReflectionProbe = nullptr;
+        if (mReflectionProbe.notNull())
+        {
+            mReflectionProbe = nullptr;
+        }
+
+		if (getReflectionProbeIsMirror())
+        {
+            gPipeline.mHeroProbeManager.unregisterViewerObject(this);
+        }
     }
 }
 
diff --git a/indra/newview/llvovolume.h b/indra/newview/llvovolume.h
index b03fc4b862..cac09609b3 100644
--- a/indra/newview/llvovolume.h
+++ b/indra/newview/llvovolume.h
@@ -294,11 +294,6 @@ public:
 	F32 getLightRadius() const;
 	F32 getLightFalloff(const F32 fudge_factor = 1.f) const;
 	F32 getLightCutoff() const;
-    
-    // Mirrors
-    bool setIsMirror(BOOL is_mirror);
-    void updateMirrorDrawable();
-    U8   mirrorFace() const override;
 
     // Reflection Probes
     bool setIsReflectionProbe(BOOL is_probe);
@@ -306,14 +301,14 @@ public:
     bool setReflectionProbeNearClip(F32 near_clip);
     bool setReflectionProbeIsBox(bool is_box);
     bool setReflectionProbeIsDynamic(bool is_dynamic);
+    bool setReflectionProbeIsMirror(bool is_mirror);
 
     BOOL isReflectionProbe() const override;
     F32 getReflectionProbeAmbiance() const;
     F32 getReflectionProbeNearClip() const;
     bool getReflectionProbeIsBox() const;
     bool getReflectionProbeIsDynamic() const;
-    
-    BOOL isMirror() const override;
+    bool getReflectionProbeIsMirror() const;
 
 	// Flexible Objects
 	U32 getVolumeInterfaceID() const;
diff --git a/indra/newview/skins/default/xui/en/floater_tools.xml b/indra/newview/skins/default/xui/en/floater_tools.xml
index 510351b471..4f4216c85a 100644
--- a/indra/newview/skins/default/xui/en/floater_tools.xml
+++ b/indra/newview/skins/default/xui/en/floater_tools.xml
@@ -2412,15 +2412,6 @@ even though the user gets a free copy.
              width="278" />
             <check_box
              height="16"
-             label="Mirror"
-             layout="topleft"
-             left="10"
-             name="Mirror Checkbox Ctrl"
-             tool_tip="Causes object to be a mirror"
-             top_pad="8"
-             width="60" />
-            <check_box
-             height="16"
              label="Light"
              layout="topleft"
              left="10"
@@ -2568,15 +2559,39 @@ even though the user gets a free copy.
              name="Box"
              value="Box"/>
           </combo_box>
-          <check_box
-             height="16"
-             label="Dynamic"
+          <text
+             type="string"
+             length="1"
+             follows="left|top"
+             height="10"
              layout="topleft"
              left="10"
-             name="Probe Dynamic"
-             tool_tip="When enabled, Avatars will appear in reflections within this probe's influence volume."
-             bottom_delta="19"
-             width="60" />
+             name="Probe Update Label"
+             text_readonly_color="LabelDisabledColor"
+             width="100">
+            Probe Update
+          </text>
+          <combo_box
+			   height="19"
+			   top_delta="0"
+         left="144"
+			   follows="left|top"
+			   name="Probe Update Type"
+			   tool_tip="Determines how the probe updates.  Static updates the slowest and without avatars.  Dynamic updates more frequently, with avatars visible in the probes.  Mirror turns this probe into a realtime planar projected mirror probe, but does not calculate ambiance."
+			   width="108">
+            <combo_box.item
+             label="Static"
+             name="Static"
+             value="Static" />
+            <combo_box.item
+             label="Dynamic"
+             name="Dynamic"
+             value="Dynamic"/>
+            <combo_box.item
+             label="Mirror"
+             name="Mirror"
+             value="Mirror"/>
+          </combo_box>
           <spinner bottom_delta="19"
                    decimal_digits="3"
                    follows="left|top"