diff --git a/indra/llmath/llvolume.cpp b/indra/llmath/llvolume.cpp
index 0c6cf1dfae..761fc171c4 100644
--- a/indra/llmath/llvolume.cpp
+++ b/indra/llmath/llvolume.cpp
@@ -2078,6 +2078,7 @@ LLVolume::LLVolume(const LLVolumeParams ¶ms, const F32 detail, const BOOL ge
mFaceMask = 0x0;
mDetail = detail;
mSculptLevel = -2;
+ mSurfaceArea = 1.f; //only calculated for sculpts, defaults to 1 for all other prims
mIsMeshAssetLoaded = FALSE;
mLODScaleBias.setVec(1,1,1);
mHullPoints = NULL;
@@ -3144,6 +3145,8 @@ void LLVolume::sculpt(U16 sculpt_width, U16 sculpt_height, S8 sculpt_components,
{
F32 area = sculptGetSurfaceArea();
+ mSurfaceArea = area;
+
const F32 SCULPT_MAX_AREA = 384.f;
if (area < SCULPT_MIN_AREA || area > SCULPT_MAX_AREA)
diff --git a/indra/llmath/llvolume.h b/indra/llmath/llvolume.h
index afd1ec5eed..76cf9de613 100644
--- a/indra/llmath/llvolume.h
+++ b/indra/llmath/llvolume.h
@@ -963,6 +963,7 @@ public:
S32 getNumFaces() const;
S32 getNumVolumeFaces() const { return mVolumeFaces.size(); }
F32 getDetail() const { return mDetail; }
+ F32 getSurfaceArea() const { return mSurfaceArea; }
const LLVolumeParams& getParams() const { return mParams; }
LLVolumeParams getCopyOfParams() const { return mParams; }
const LLProfile& getProfile() const { return *mProfilep; }
@@ -1065,6 +1066,7 @@ public:
BOOL mUnique;
F32 mDetail;
S32 mSculptLevel;
+ F32 mSurfaceArea; //unscaled surface area
BOOL mIsMeshAssetLoaded;
LLVolumeParams mParams;
diff --git a/indra/newview/app_settings/settings.xml b/indra/newview/app_settings/settings.xml
index 1ea623791d..3acc8a2446 100644
--- a/indra/newview/app_settings/settings.xml
+++ b/indra/newview/app_settings/settings.xml
@@ -9024,6 +9024,28 @@
Value
1
+ RenderAutoMuteByteLimit
+
+ RenderAutoMuteSurfaceAreaLimit
+
RenderUseShaderLOD