5 files changed, 32 insertions, 4 deletions
diff --git a/indra/llprimitive/llgltfmaterial.h b/indra/llprimitive/llgltfmaterial.h
index 9f817d6a19..9b50d16884 100644
--- a/indra/llprimitive/llgltfmaterial.h
+++ b/indra/llprimitive/llgltfmaterial.h
@@ -110,6 +110,17 @@ public:
     static const char* const GLTF_FILE_EXTENSION_TRANSFORM_ROTATION;
     static const LLUUID GLTF_OVERRIDE_NULL_UUID;
 
+    // *TODO: If/when we implement additional GLTF extensions, they may not be
+    // compatible with our GLTF terrain implementation. We may want to disallow
+    // materials with some features from being set on terrain, if their
+    // implementation on terrain is not compliant with the spec:
+    //     - KHR_materials_transmission: Probably OK?
+    //     - KHR_materials_ior: Probably OK?
+    //     - KHR_materials_volume: Likely incompatible, as our terrain
+    //       heightmaps cannot currently be described as finite enclosed
+    //       volumes.
+    // See also LLPanelRegionTerrainInfo::validateMaterials
+
     // get a UUID based on a hash of this LLGLTFMaterial
     LLUUID getHash() const;
 
@@ -257,10 +268,10 @@ public:
     F32 mAlphaCutoff;
 
     AlphaMode mAlphaMode;
-    bool mDoubleSided;
+    bool mDoubleSided = false;
 
     // Override specific flags for state that can't use off-by-epsilon or UUID
     // hack
-    bool mOverrideDoubleSided;
-    bool mOverrideAlphaMode;
+    bool mOverrideDoubleSided = false;
+    bool mOverrideAlphaMode = false;
 };
diff --git a/indra/llprimitive/llprimitive.cpp b/indra/llprimitive/llprimitive.cpp
index 8c9076bd8b..a4f9132ddd 100644
--- a/indra/llprimitive/llprimitive.cpp
+++ b/indra/llprimitive/llprimitive.cpp
@@ -1934,6 +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 45307d567c..c4fe4fdf62 100644
--- a/indra/llprimitive/llprimitive.h
+++ b/indra/llprimitive/llprimitive.h
@@ -186,6 +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:
@@ -209,11 +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/llprimitive/lltextureentry.cpp b/indra/llprimitive/lltextureentry.cpp
index 71caff1686..ee2a4c769a 100644
--- a/indra/llprimitive/lltextureentry.cpp
+++ b/indra/llprimitive/lltextureentry.cpp
@@ -685,6 +685,7 @@ S32 LLTextureEntry::setMaterialParams(const LLMaterialPtr pMaterialParams)
 		mMaterialUpdatePending = true;
 	}
 	mMaterial = pMaterialParams;
+    
 	return TEM_CHANGE_TEXTURE;
 }
 
diff --git a/indra/llprimitive/lltextureentry.h b/indra/llprimitive/lltextureentry.h
index f5f2c0172d..0935147688 100644
--- a/indra/llprimitive/lltextureentry.h
+++ b/indra/llprimitive/lltextureentry.h
@@ -134,7 +134,7 @@ public:
     S32  setGlow(F32 glow);
 	S32  setMaterialID(const LLMaterialID& pMaterialID);
 	S32  setMaterialParams(const LLMaterialPtr pMaterialParams);
-	
+    
 	virtual const LLUUID &getID() const { return mID; }
 	const LLColor4 &getColor() const { return mColor; }
     const F32 getAlpha() const { return mColor.mV[VALPHA]; }