I was critically damp once. It was okay.

indra/llcharacter/lleditingmotion.cpp

@@ -240,7 +240,7 @@ BOOL LLEditingMotion::onUpdate(F32 time, U8* joint_mask)
 		mIKSolver.solve();
 
 		// use blending...
-		F32 slerp_amt = LLCriticalDamp::getInterpolant(TARGET_LAG_HALF_LIFE);
+		F32 slerp_amt = LLSmoothInterpolation::getInterpolant(TARGET_LAG_HALF_LIFE);
 		shoulderRot = slerp(slerp_amt, mShoulderJoint.getRotation(), shoulderRot);
 		elbowRot = slerp(slerp_amt, mElbowJoint.getRotation(), elbowRot);
 

indra/llcharacter/llheadrotmotion.cpp

@@ -181,8 +181,8 @@ BOOL LLHeadRotMotion::onUpdate(F32 time, U8* joint_mask)
 	LLQuaternion	currentRootRotWorld = mRootJoint->getWorldRotation();
 	LLQuaternion	currentInvRootRotWorld = ~currentRootRotWorld;
 
-	F32 head_slerp_amt = LLCriticalDamp::getInterpolant(HEAD_LOOKAT_LAG_HALF_LIFE);
+	F32 head_slerp_amt = LLSmoothInterpolation::getInterpolant(HEAD_LOOKAT_LAG_HALF_LIFE);
-	F32 torso_slerp_amt = LLCriticalDamp::getInterpolant(TORSO_LOOKAT_LAG_HALF_LIFE);
+	F32 torso_slerp_amt = LLSmoothInterpolation::getInterpolant(TORSO_LOOKAT_LAG_HALF_LIFE);
 
 	LLVector3* targetPos = (LLVector3*)mCharacter->getAnimationData("LookAtPoint");
 

indra/llcharacter/llkeyframemotion.cpp

@@ -1101,11 +1101,11 @@ void LLKeyframeMotion::applyConstraint(JointConstraint* constraint, F32 time, U8
 	if (constraint->mSharedData->mChainLength != 0 &&
 		dist_vec_squared(root_pos, target_pos) * 0.95f > constraint->mTotalLength * constraint->mTotalLength)
 	{
-		constraint->mWeight = lerp(constraint->mWeight, 0.f, LLCriticalDamp::getInterpolant(0.1f));
+		constraint->mWeight = lerp(constraint->mWeight, 0.f, LLSmoothInterpolation::getInterpolant(0.1f));
 	}
 	else
 	{
-		constraint->mWeight = lerp(constraint->mWeight, 1.f, LLCriticalDamp::getInterpolant(0.3f));
+		constraint->mWeight = lerp(constraint->mWeight, 1.f, LLSmoothInterpolation::getInterpolant(0.3f));
 	}
 
 	F32 weight = constraint->mWeight * ((shared_data->mEaseOutStopTime == 0.f) ? 1.f : 
@@ -1152,9 +1152,9 @@ void LLKeyframeMotion::applyConstraint(JointConstraint* constraint, F32 time, U8
 			// convert intermediate joint positions to world coordinates
 			positions[joint_num] = ( constraint->mPositions[joint_num] * mPelvisp->getWorldRotation()) + mPelvisp->getWorldPosition();
 			F32 time_constant = 1.f / clamp_rescale(constraint->mFixupDistanceRMS, 0.f, 0.5f, 0.2f, 8.f);
-//			LL_INFOS() << "Interpolant " << LLCriticalDamp::getInterpolant(time_constant, FALSE) << " and fixup distance " << constraint->mFixupDistanceRMS << " on " << mCharacter->findCollisionVolume(shared_data->mSourceConstraintVolume)->getName() << LL_ENDL;
+//			LL_INFOS() << "Interpolant " << LLSmoothInterpolation::getInterpolant(time_constant, FALSE) << " and fixup distance " << constraint->mFixupDistanceRMS << " on " << mCharacter->findCollisionVolume(shared_data->mSourceConstraintVolume)->getName() << LL_ENDL;
 			positions[joint_num] = lerp(positions[joint_num], kinematic_position, 
-				LLCriticalDamp::getInterpolant(time_constant, FALSE));
+				LLSmoothInterpolation::getInterpolant(time_constant, FALSE));
 		}
 
 		S32 iteration_count;

indra/llcharacter/llkeyframewalkmotion.cpp

@@ -258,7 +258,7 @@ BOOL LLWalkAdjustMotion::onUpdate(F32 time, U8* joint_mask)
 		// but this will cause the animation playback rate calculation below to 
 		// kick in too slowly and sometimes start playing the animation in reverse.
 
-		//mPelvisOffset -= PELVIS_COMPENSATION_WIEGHT * (foot_slip_vector * world_to_avatar_rot);//lerp(LLVector3::zero, -1.f * (foot_slip_vector * world_to_avatar_rot), LLCriticalDamp::getInterpolant(0.1f));
+		//mPelvisOffset -= PELVIS_COMPENSATION_WIEGHT * (foot_slip_vector * world_to_avatar_rot);//lerp(LLVector3::zero, -1.f * (foot_slip_vector * world_to_avatar_rot), LLSmoothInterpolation::getInterpolant(0.1f));
 
 		////F32 drift_comp_max = DRIFT_COMP_MAX_TOTAL * (llclamp(speed, 0.f, DRIFT_COMP_MAX_SPEED) / DRIFT_COMP_MAX_SPEED);
 		//F32 drift_comp_max = DRIFT_COMP_MAX_TOTAL;
@@ -287,7 +287,7 @@ BOOL LLWalkAdjustMotion::onUpdate(F32 time, U8* joint_mask)
 		F32 desired_speed_multiplier = llclamp(speed / foot_speed, min_speed_multiplier, ANIM_SPEED_MAX);
 
 		// blend towards new speed adjustment value
-		F32 new_speed_adjust = lerp(mAdjustedSpeed, desired_speed_multiplier, LLCriticalDamp::getInterpolant(SPEED_ADJUST_TIME_CONSTANT));
+		F32 new_speed_adjust = lerp(mAdjustedSpeed, desired_speed_multiplier, LLSmoothInterpolation::getInterpolant(SPEED_ADJUST_TIME_CONSTANT));
 
 		// limit that rate at which the speed adjustment changes
 		F32 speedDelta = llclamp(new_speed_adjust - mAdjustedSpeed, -SPEED_ADJUST_MAX_SEC * delta_time, SPEED_ADJUST_MAX_SEC * delta_time);
@@ -305,8 +305,8 @@ BOOL LLWalkAdjustMotion::onUpdate(F32 time, U8* joint_mask)
 	{	// standing/turning
 
 		// damp out speed adjustment to 0
-		mAnimSpeed = lerp(mAnimSpeed, 1.f, LLCriticalDamp::getInterpolant(0.2f));
+		mAnimSpeed = lerp(mAnimSpeed, 1.f, LLSmoothInterpolation::getInterpolant(0.2f));
-		//mPelvisOffset = lerp(mPelvisOffset, LLVector3::zero, LLCriticalDamp::getInterpolant(0.2f));
+		//mPelvisOffset = lerp(mPelvisOffset, LLVector3::zero, LLSmoothInterpolation::getInterpolant(0.2f));
 	}
 
 	// broadcast walk speed change
@@ -384,7 +384,7 @@ BOOL LLFlyAdjustMotion::onUpdate(F32 time, U8* joint_mask)
 	F32 target_roll = llclamp(ang_vel.mV[VZ], -4.f, 4.f) * roll_factor;
 
 	// roll is critically damped interpolation between current roll and angular velocity-derived target roll
-	mRoll = lerp(mRoll, target_roll, LLCriticalDamp::getInterpolant(0.1f));
+	mRoll = lerp(mRoll, target_roll, LLSmoothInterpolation::getInterpolant(0.1f));
 
 	LLQuaternion roll(mRoll, LLVector3(0.f, 0.f, 1.f));
 	mPelvisState->setRotation(roll);

indra/llcharacter/llmotion.cpp

@@ -199,7 +199,7 @@ void LLMotion::fadeOut()
 {
 	if (mFadeWeight > 0.01f)
 	{
-		mFadeWeight = lerp(mFadeWeight, 0.f, LLCriticalDamp::getInterpolant(0.15f));
+		mFadeWeight = lerp(mFadeWeight, 0.f, LLSmoothInterpolation::getInterpolant(0.15f));
 	}
 	else
 	{
@@ -214,7 +214,7 @@ void LLMotion::fadeIn()
 {
 	if (mFadeWeight < 0.99f)
 	{
-		mFadeWeight = lerp(mFadeWeight, 1.f, LLCriticalDamp::getInterpolant(0.15f));
+		mFadeWeight = lerp(mFadeWeight, 1.f, LLSmoothInterpolation::getInterpolant(0.15f));
 	}
 	else
 	{

indra/llcharacter/lltargetingmotion.cpp

@@ -104,7 +104,7 @@ LLMotion::LLMotionInitStatus LLTargetingMotion::onInitialize(LLCharacter *charac
 //-----------------------------------------------------------------------------
 BOOL LLTargetingMotion::onUpdate(F32 time, U8* joint_mask)
 {
-	F32 slerp_amt = LLCriticalDamp::getInterpolant(TORSO_TARGET_HALF_LIFE);
+	F32 slerp_amt = LLSmoothInterpolation::getInterpolant(TORSO_TARGET_HALF_LIFE);
 
 	LLVector3 target;
 	LLVector3* lookAtPoint = (LLVector3*)mCharacter->getAnimationData("LookAtPoint");

indra/llcommon/llcriticaldamp.cpp

@@ -33,63 +33,105 @@
 #include "linden_common.h"
 
 #include "llcriticaldamp.h"
+#include <algorithm>
 
 //-----------------------------------------------------------------------------
 // static members
 //-----------------------------------------------------------------------------
-LLFrameTimer LLCriticalDamp::sInternalTimer;
+LLFrameTimer LLSmoothInterpolation::sInternalTimer;
-std::map<F32, F32> LLCriticalDamp::sInterpolants;
+std::vector<LLSmoothInterpolation::Interpolant> LLSmoothInterpolation::sInterpolants;
-F32 LLCriticalDamp::sTimeDelta;
+F32 LLSmoothInterpolation::sTimeDelta;
+std::pair<F32, F32> sCachedEntry;
+
+// helper functors
+struct LLSmoothInterpolation::CompareTimeConstants
+{
+	bool operator()(const F32& a, const LLSmoothInterpolation::Interpolant& b) const
+	{
+		return a < b.mTimeScale;
+	}
+
+	bool operator()(const LLSmoothInterpolation::Interpolant& a, const F32& b) const
+	{
+		return a.mTimeScale < b; // bottom of a is higher than bottom of b
+	}
+
+	bool operator()(const LLSmoothInterpolation::Interpolant& a, const LLSmoothInterpolation::Interpolant& b) const
+	{
+		return a.mTimeScale < b.mTimeScale; // bottom of a is higher than bottom of b
+	}
+};
 
 //-----------------------------------------------------------------------------
-// LLCriticalDamp()
+// LLSmoothInterpolation()
 //-----------------------------------------------------------------------------
-LLCriticalDamp::LLCriticalDamp()
+LLSmoothInterpolation::LLSmoothInterpolation()
 {
 	sTimeDelta = 0.f;
+	sCachedEntry = std::pair<F32, F32>(-1.f, -1.f);
 }
 
 // static
 //-----------------------------------------------------------------------------
 // updateInterpolants()
 //-----------------------------------------------------------------------------
-void LLCriticalDamp::updateInterpolants()
+void LLSmoothInterpolation::updateInterpolants()
 {
 	sTimeDelta = sInternalTimer.getElapsedTimeAndResetF32();
 
-	F32 time_constant;
+	for (size_t i = 0; i < sInterpolants.size(); i++)
-
-	for (std::map<F32, F32>::iterator iter = sInterpolants.begin();
-		 iter != sInterpolants.end(); iter++)
 	{
-		time_constant = iter->first;
+		Interpolant& interp = sInterpolants[i];
-		F32 new_interpolant = 1.f - pow(2.f, -sTimeDelta / time_constant);
+		interp.mInterpolant = calcInterpolant(interp.mTimeScale);
-		new_interpolant = llclamp(new_interpolant, 0.f, 1.f);
+		if (sCachedEntry.first == interp.mTimeScale)
-		sInterpolants[time_constant] = new_interpolant;
+		{
+			sCachedEntry.second = interp.mInterpolant;
+		}
 	}
 } 
 
 //-----------------------------------------------------------------------------
 // getInterpolant()
 //-----------------------------------------------------------------------------
-F32 LLCriticalDamp::getInterpolant(const F32 time_constant, BOOL use_cache)
+F32 LLSmoothInterpolation::getInterpolant(F32SecondsImplicit time_constant, bool use_cache)
 {
 	if (time_constant == 0.f)
 	{
 		return 1.f;
 	}
 
-	if (use_cache && sInterpolants.count(time_constant))
-	{
-		return sInterpolants[time_constant];
-	}
-	
-	F32 interpolant = 1.f - pow(2.f, -sTimeDelta / time_constant);
-	interpolant = llclamp(interpolant, 0.f, 1.f);
 	if (use_cache)
 	{
-		sInterpolants[time_constant] = interpolant;
+		if (sCachedEntry.first == time_constant)
+		{
+			return sCachedEntry.second;
+		}
+		interpolant_vec_t::iterator find_it = std::lower_bound(sInterpolants.begin(), sInterpolants.end(), time_constant.value(), CompareTimeConstants());
+		if (find_it != sInterpolants.end() && find_it->mTimeScale == time_constant) 
+		{
+			sCachedEntry = std::make_pair(time_constant.value(), find_it->mInterpolant);
+			return find_it->mInterpolant;
+		}
+		else
+		{
+			Interpolant interp;
+			interp.mTimeScale = time_constant.value();
+			interp.mInterpolant = calcInterpolant(time_constant.value());
+			sInterpolants.insert(find_it, interp);
+			sCachedEntry = std::make_pair(time_constant.value(), interp.mInterpolant);
+			return interp.mInterpolant;
+		}
+	}
+	else
+	{
+		return calcInterpolant(time_constant.value());
 	}
-
+}
-	return interpolant;
+
+//-----------------------------------------------------------------------------
+// calcInterpolant()
+//-----------------------------------------------------------------------------
+F32 LLSmoothInterpolation::calcInterpolant(F32 time_constant)
+{
+	return llclamp(1.f - powf(2.f, -sTimeDelta / time_constant), 0.f, 1.f);
 }

indra/llcommon/llcriticaldamp.h

@@ -34,26 +34,46 @@
 #ifndef LL_LLCRITICALDAMP_H
 #define LL_LLCRITICALDAMP_H
 
-#include <map>
+#include <vector>
 
 #include "llframetimer.h"
+#include "llunits.h"
 
-class LL_COMMON_API LLCriticalDamp
+class LL_COMMON_API LLSmoothInterpolation 
 {
 public:
-	LLCriticalDamp();
+	LLSmoothInterpolation();
 
 	// MANIPULATORS
 	static void updateInterpolants();
 
 	// ACCESSORS
-	static F32 getInterpolant(const F32 time_constant, BOOL use_cache = TRUE);
+	static F32 getInterpolant(F32SecondsImplicit time_constant, bool use_cache = true);
+
+	template<typename T> 
+	static T lerp(T a, T b, F32SecondsImplicit time_constant, bool use_cache = true)
+	{
+		F32 interpolant = getInterpolant(time_constant, use_cache);
+		return ((a * (1.f - interpolant)) 
+				+ (b * interpolant));
+	}
 
 protected:
+	static F32 calcInterpolant(F32 time_constant);
+
+	struct CompareTimeConstants;
 	static LLFrameTimer sInternalTimer;	// frame timer for calculating deltas
 
-	static std::map<F32, F32> 	sInterpolants;
+	struct Interpolant
+	{
+		F32 mTimeScale;
+		F32 mInterpolant;
+	};
+	typedef std::vector<Interpolant> interpolant_vec_t;
+	static interpolant_vec_t 	sInterpolants;
 	static F32					sTimeDelta;
 };
 
+typedef LLSmoothInterpolation LLCriticalDamp;
+
 #endif  // LL_LLCRITICALDAMP_H

indra/llrender/llrender.cpp

@@ -2135,12 +2135,8 @@ void LLRender::end()
 	}
 }
 
-extern bool countFlushes;
-extern unsigned int flushCount;
-
 void LLRender::flush()
 {
-	if (countFlushes) ++flushCount;
 	if (mCount > 0)
 	{
 #if 0

indra/llui/llbutton.cpp

@@ -704,11 +704,11 @@ void LLButton::draw()
 		mCurGlowStrength = lerp(mCurGlowStrength,
 					mFlashing ? (flash? 1.0 : 0.0)
 					: mHoverGlowStrength,
-					LLCriticalDamp::getInterpolant(0.05f));
+					LLSmoothInterpolation::getInterpolant(0.05f));
 	}
 	else
 	{
-		mCurGlowStrength = lerp(mCurGlowStrength, 0.f, LLCriticalDamp::getInterpolant(0.05f));
+		mCurGlowStrength = lerp(mCurGlowStrength, 0.f, LLSmoothInterpolation::getInterpolant(0.05f));
 	}
 
 	// Draw button image, if available.

indra/llui/lllayoutstack.cpp

@@ -621,7 +621,7 @@ bool LLLayoutStack::animatePanels()
 			{
 				if (!mAnimatedThisFrame)
 				{
-					panelp->mVisibleAmt = lerp(panelp->mVisibleAmt, 1.f, LLCriticalDamp::getInterpolant(mOpenTimeConstant));
+					panelp->mVisibleAmt = lerp(panelp->mVisibleAmt, 1.f, LLSmoothInterpolation::getInterpolant(mOpenTimeConstant));
 					if (panelp->mVisibleAmt > 0.99f)
 					{
 						panelp->mVisibleAmt = 1.f;
@@ -646,7 +646,7 @@ bool LLLayoutStack::animatePanels()
 			{
 				if (!mAnimatedThisFrame)
 				{
-					panelp->mVisibleAmt = lerp(panelp->mVisibleAmt, 0.f, LLCriticalDamp::getInterpolant(mCloseTimeConstant));
+					panelp->mVisibleAmt = lerp(panelp->mVisibleAmt, 0.f, LLSmoothInterpolation::getInterpolant(mCloseTimeConstant));
 					if (panelp->mVisibleAmt < 0.001f)
 					{
 						panelp->mVisibleAmt = 0.f;
@@ -673,7 +673,7 @@ bool LLLayoutStack::animatePanels()
 			{
 				if (!mAnimatedThisFrame)
 				{
-					panelp->mCollapseAmt = lerp(panelp->mCollapseAmt, collapse_state, LLCriticalDamp::getInterpolant(mCloseTimeConstant));
+					panelp->mCollapseAmt = lerp(panelp->mCollapseAmt, collapse_state, LLSmoothInterpolation::getInterpolant(mCloseTimeConstant));
 				}
 			
 				if (llabs(panelp->mCollapseAmt - collapse_state) < 0.001f)

indra/llui/llmenugl.cpp

@@ -4509,7 +4509,7 @@ void LLTearOffMenu::draw()
 	if (getRect().getHeight() != mTargetHeight)
 	{
 		// animate towards target height
-		reshape(getRect().getWidth(), llceil(lerp((F32)getRect().getHeight(), mTargetHeight, LLCriticalDamp::getInterpolant(0.05f))));
+		reshape(getRect().getWidth(), llceil(lerp((F32)getRect().getHeight(), mTargetHeight, LLSmoothInterpolation::getInterpolant(0.05f))));
 	}
 	LLFloater::draw();
 }

indra/llui/llscrollbar.cpp

@@ -502,11 +502,11 @@ void LLScrollbar::draw()
 	BOOL hovered = getEnabled() && !other_captor && (hasMouseCapture() || mThumbRect.pointInRect(local_mouse_x, local_mouse_y));
 	if (hovered)
 	{
-		mCurGlowStrength = lerp(mCurGlowStrength, mHoverGlowStrength, LLCriticalDamp::getInterpolant(0.05f));
+		mCurGlowStrength = lerp(mCurGlowStrength, mHoverGlowStrength, LLSmoothInterpolation::getInterpolant(0.05f));
 	}
 	else
 	{
-		mCurGlowStrength = lerp(mCurGlowStrength, 0.f, LLCriticalDamp::getInterpolant(0.05f));
+		mCurGlowStrength = lerp(mCurGlowStrength, 0.f, LLSmoothInterpolation::getInterpolant(0.05f));
 	}
 
 

indra/llui/lltabcontainer.cpp

@@ -215,7 +215,7 @@ void LLTabContainer::draw()
 		}
 	}
 
-	setScrollPosPixels(mIsVertical ? target_pixel_scroll : lerp((F32)getScrollPosPixels(), (F32)target_pixel_scroll, LLCriticalDamp::getInterpolant(0.08f)));
+	setScrollPosPixels(mIsVertical ? target_pixel_scroll : lerp((F32)getScrollPosPixels(), (F32)target_pixel_scroll, LLSmoothInterpolation::getInterpolant(0.08f)));
 
 	BOOL has_scroll_arrows = !getTabsHidden() && ((mMaxScrollPos > 0) || (mScrollPosPixels > 0));
 	if (!mIsVertical)

indra/newview/llagentcamera.cpp

@@ -352,7 +352,7 @@ void LLAgentCamera::resetView(BOOL reset_camera, BOOL change_camera)
 			LLVector3 agent_at_axis = gAgent.getAtAxis();
 			agent_at_axis -= projected_vec(agent_at_axis, gAgent.getReferenceUpVector());
 			agent_at_axis.normalize();
-			gAgent.resetAxes(lerp(gAgent.getAtAxis(), agent_at_axis, LLCriticalDamp::getInterpolant(0.3f)));
+			gAgent.resetAxes(lerp(gAgent.getAtAxis(), agent_at_axis, LLSmoothInterpolation::getInterpolant(0.3f)));
 		}
 
 		setFocusOnAvatar(TRUE, ANIMATE);
@@ -1299,7 +1299,7 @@ void LLAgentCamera::updateCamera()
 	gAgentCamera.clearPanKeys();
 
 	// lerp camera focus offset
-	mCameraFocusOffset = lerp(mCameraFocusOffset, mCameraFocusOffsetTarget, LLCriticalDamp::getInterpolant(CAMERA_FOCUS_HALF_LIFE));
+	mCameraFocusOffset = lerp(mCameraFocusOffset, mCameraFocusOffsetTarget, LLSmoothInterpolation::getInterpolant(CAMERA_FOCUS_HALF_LIFE));
 
 	if ( mCameraMode == CAMERA_MODE_FOLLOW )
 	{
@@ -1418,7 +1418,7 @@ void LLAgentCamera::updateCamera()
 			const F32 SMOOTHING_HALF_LIFE = 0.02f;
 			
 			static const LLCachedControl<F32> camera_position_smoothing("CameraPositionSmoothing");
-			F32 smoothing = LLCriticalDamp::getInterpolant(camera_position_smoothing * SMOOTHING_HALF_LIFE, FALSE);
+			F32 smoothing = LLSmoothInterpolation::getInterpolant(camera_position_smoothing * SMOOTHING_HALF_LIFE, FALSE);
 					
 			if (!mFocusObject)  // we differentiate on avatar mode 
 			{
@@ -1448,7 +1448,7 @@ void LLAgentCamera::updateCamera()
 	}
 
 	
-	mCameraCurrentFOVZoomFactor = lerp(mCameraCurrentFOVZoomFactor, mCameraFOVZoomFactor, LLCriticalDamp::getInterpolant(FOV_ZOOM_HALF_LIFE));
+	mCameraCurrentFOVZoomFactor = lerp(mCameraCurrentFOVZoomFactor, mCameraFOVZoomFactor, LLSmoothInterpolation::getInterpolant(FOV_ZOOM_HALF_LIFE));
 
 //	LL_INFOS() << "Current FOV Zoom: " << mCameraCurrentFOVZoomFactor << " Target FOV Zoom: " << mCameraFOVZoomFactor << " Object penetration: " << mFocusObjectDist << LL_ENDL;
 
@@ -1615,7 +1615,7 @@ F32 LLAgentCamera::calcCustomizeAvatarUIOffset( const LLVector3d& camera_pos_glo
 		}
 	}
 	F32 range = (F32)dist_vec(camera_pos_global, gAgentCamera.getFocusGlobal());
-	mUIOffset = lerp(mUIOffset, ui_offset, LLCriticalDamp::getInterpolant(0.05f));
+	mUIOffset = lerp(mUIOffset, ui_offset, LLSmoothInterpolation::getInterpolant(0.05f));
 	return mUIOffset * range;
 }
 
@@ -1924,7 +1924,7 @@ LLVector3d LLAgentCamera::calcCameraPositionTargetGlobal(BOOL *hit_limit)
 
 			if (mTargetCameraDistance != mCurrentCameraDistance)
 			{
-				F32 camera_lerp_amt = LLCriticalDamp::getInterpolant(CAMERA_ZOOM_HALF_LIFE);
+				F32 camera_lerp_amt = LLSmoothInterpolation::getInterpolant(CAMERA_ZOOM_HALF_LIFE);
 
 				mCurrentCameraDistance = lerp(mCurrentCameraDistance, mTargetCameraDistance, camera_lerp_amt);
 			}
@@ -1941,7 +1941,7 @@ LLVector3d LLAgentCamera::calcCameraPositionTargetGlobal(BOOL *hit_limit)
 			if (isAgentAvatarValid())
 			{
 				LLVector3d camera_lag_d;
-				F32 lag_interp = LLCriticalDamp::getInterpolant(CAMERA_LAG_HALF_LIFE);
+				F32 lag_interp = LLSmoothInterpolation::getInterpolant(CAMERA_LAG_HALF_LIFE);
 				LLVector3 target_lag;
 				LLVector3 vel = gAgent.getVelocity();
 
@@ -1987,7 +1987,7 @@ LLVector3d LLAgentCamera::calcCameraPositionTargetGlobal(BOOL *hit_limit)
 				}
 				else
 				{
-					mCameraLag = lerp(mCameraLag, LLVector3::zero, LLCriticalDamp::getInterpolant(0.15f));
+					mCameraLag = lerp(mCameraLag, LLVector3::zero, LLSmoothInterpolation::getInterpolant(0.15f));
 				}
 
 				camera_lag_d.setVec(mCameraLag);

indra/newview/llappviewer.cpp

@@ -3775,8 +3775,8 @@ void LLAppViewer::idle()
 		LLEventTimer::updateClass();
 	}
 	{
-		LAZY_FT("LLCriticalDamp::updateInterpolants");
+		LAZY_FT("LLSmoothInterpolation::updateInterpolants");
-		LLCriticalDamp::updateInterpolants();
+		LLSmoothInterpolation::updateInterpolants();
 	}
 	{
 		LAZY_FT("LLMortician::updateClass");

indra/newview/lldrawable.cpp

@@ -581,7 +581,7 @@ F32 LLDrawable::updateXform(BOOL undamped)
 
 	if (damped && isVisible())
 	{
-		F32 lerp_amt = llclamp(LLCriticalDamp::getInterpolant(OBJECT_DAMPING_TIME_CONSTANT), 0.f, 1.f);
+		F32 lerp_amt = llclamp(LLSmoothInterpolation::getInterpolant(OBJECT_DAMPING_TIME_CONSTANT), 0.f, 1.f);
 		LLVector3 new_pos = lerp(old_pos, target_pos, lerp_amt);
 		dist_squared = dist_vec_squared(new_pos, target_pos);
 

indra/newview/llfasttimerview.cpp

@@ -1026,7 +1026,7 @@ void LLFastTimerView::draw()
 			}
 			
 			//interpolate towards new maximum
-			last_max = (U64) lerp((F32)last_max, (F32) cur_max, LLCriticalDamp::getInterpolant(0.1f));
+			last_max = (U64) lerp((F32)last_max, (F32) cur_max, LLSmoothInterpolation::getInterpolant(0.1f));
 			if (last_max - cur_max <= 1 ||  cur_max - last_max  <= 1)
 			{
 				last_max = cur_max;
@@ -1034,7 +1034,7 @@ void LLFastTimerView::draw()
 			F32 alpha_target = last_max > cur_max ?
 								llmin((F32) last_max/ (F32) cur_max - 1.f,1.f) :
 								llmin((F32) cur_max/ (F32) last_max - 1.f,1.f);
-			alpha_interp = lerp(alpha_interp, alpha_target, LLCriticalDamp::getInterpolant(0.1f));
+			alpha_interp = lerp(alpha_interp, alpha_target, LLSmoothInterpolation::getInterpolant(0.1f));
 
 			if (mHoverID != NULL)
 			{

indra/newview/llfloateravatarpicker.cpp

@@ -425,11 +425,11 @@ void LLFloaterAvatarPicker::drawFrustum()
 
 		if (gFocusMgr.childHasMouseCapture(getDragHandle()))
 		{
-			mContextConeOpacity = lerp(mContextConeOpacity, gSavedSettings.getF32("PickerContextOpacity"), LLCriticalDamp::getInterpolant(mContextConeFadeTime));
+			mContextConeOpacity = lerp(mContextConeOpacity, gSavedSettings.getF32("PickerContextOpacity"), LLSmoothInterpolation::getInterpolant(mContextConeFadeTime));
 		}
 		else
 		{
-			mContextConeOpacity = lerp(mContextConeOpacity, 0.f, LLCriticalDamp::getInterpolant(mContextConeFadeTime));
+			mContextConeOpacity = lerp(mContextConeOpacity, 0.f, LLSmoothInterpolation::getInterpolant(mContextConeFadeTime));
 		}
 	}
 }

indra/newview/llfloatercolorpicker.cpp

@@ -532,11 +532,11 @@ void LLFloaterColorPicker::draw()
 
 	if (gFocusMgr.childHasMouseCapture(getDragHandle()))
 	{
-		mContextConeOpacity = lerp(mContextConeOpacity, gSavedSettings.getF32("PickerContextOpacity"), LLCriticalDamp::getInterpolant(CONTEXT_FADE_TIME));
+		mContextConeOpacity = lerp(mContextConeOpacity, gSavedSettings.getF32("PickerContextOpacity"), LLSmoothInterpolation::getInterpolant(CONTEXT_FADE_TIME));
 	}
 	else
 	{
-		mContextConeOpacity = lerp(mContextConeOpacity, 0.f, LLCriticalDamp::getInterpolant(CONTEXT_FADE_TIME));
+		mContextConeOpacity = lerp(mContextConeOpacity, 0.f, LLSmoothInterpolation::getInterpolant(CONTEXT_FADE_TIME));
 	}
 
 	mPipetteBtn->setToggleState(LLToolMgr::getInstance()->getCurrentTool() == LLToolPipette::getInstance());

indra/newview/llfloatersnapshot.cpp

@@ -607,7 +607,7 @@ void LLSnapshotLivePreview::draw()
 		{
 			if (mFlashAlpha < 1.f)
 			{
-				mFlashAlpha = lerp(mFlashAlpha, 1.f, LLCriticalDamp::getInterpolant(0.02f));
+				mFlashAlpha = lerp(mFlashAlpha, 1.f, LLSmoothInterpolation::getInterpolant(0.02f));
 			}
 			else
 			{
@@ -616,7 +616,7 @@ void LLSnapshotLivePreview::draw()
 		}
 		else
 		{
-			mFlashAlpha = lerp(mFlashAlpha, 0.f, LLCriticalDamp::getInterpolant(0.15f));
+			mFlashAlpha = lerp(mFlashAlpha, 0.f, LLSmoothInterpolation::getInterpolant(0.15f));
 		}
 
 		if (mShineCountdown > 0)

indra/newview/llfolderviewitem.cpp

@@ -1280,7 +1280,7 @@ S32 LLFolderViewFolder::arrange( S32* width, S32* height, S32 filter_generation)
 	// animate current height towards target height
 	if (llabs(mCurHeight - mTargetHeight) > 1.f)
 	{
-		mCurHeight = lerp(mCurHeight, mTargetHeight, LLCriticalDamp::getInterpolant(mIsOpen ? FOLDER_OPEN_TIME_CONSTANT : FOLDER_CLOSE_TIME_CONSTANT));
+		mCurHeight = lerp(mCurHeight, mTargetHeight, LLSmoothInterpolation::getInterpolant(mIsOpen ? FOLDER_OPEN_TIME_CONSTANT : FOLDER_CLOSE_TIME_CONSTANT));
 
 		requestArrange();
 
@@ -2521,11 +2521,11 @@ void LLFolderViewFolder::draw()
 	}
 	else if (mIsOpen)
 	{
-		mControlLabelRotation = lerp(mControlLabelRotation, -90.f, LLCriticalDamp::getInterpolant(0.04f));
+		mControlLabelRotation = lerp(mControlLabelRotation, -90.f, LLSmoothInterpolation::getInterpolant(0.04f));
 	}
 	else
 	{
-		mControlLabelRotation = lerp(mControlLabelRotation, 0.f, LLCriticalDamp::getInterpolant(0.025f));
+		mControlLabelRotation = lerp(mControlLabelRotation, 0.f, LLSmoothInterpolation::getInterpolant(0.025f));
 	}
 
 	bool possibly_has_children = false;

indra/newview/llfollowcam.cpp

@@ -334,11 +334,11 @@ void LLFollowCam::update()
 				F32 force = focusOffsetDistance - focusThresholdNormalizedByDistance;
 			*/
 
-			F32 focusLagLerp = LLCriticalDamp::getInterpolant( mFocusLag );
+			F32 focusLagLerp = LLSmoothInterpolation::getInterpolant( mFocusLag );
 			focus_pt_agent = lerp( focus_pt_agent, whereFocusWantsToBe, focusLagLerp );
 			mSimulatedFocusGlobal = gAgent.getPosGlobalFromAgent(focus_pt_agent);
 		}
-		mRelativeFocus = lerp(mRelativeFocus, (focus_pt_agent - mSubjectPosition) * ~mSubjectRotation, LLCriticalDamp::getInterpolant(0.05f));
+		mRelativeFocus = lerp(mRelativeFocus, (focus_pt_agent - mSubjectPosition) * ~mSubjectRotation, LLSmoothInterpolation::getInterpolant(0.05f));
 	}// if focus is not locked ---------------------------------------------
 
 
@@ -421,7 +421,7 @@ void LLFollowCam::update()
 		//-------------------------------------------------------------------------------------------------
 		if ( distanceFromPositionToIdealPosition > mPositionThreshold )
 		{
-			F32 positionPullLerp = LLCriticalDamp::getInterpolant( mPositionLag );
+			F32 positionPullLerp = LLSmoothInterpolation::getInterpolant( mPositionLag );
 			simulated_pos_agent = lerp( simulated_pos_agent, whereCameraPositionWantsToBe, positionPullLerp );
 		}
 
@@ -441,7 +441,7 @@ void LLFollowCam::update()
 		updateBehindnessConstraint(gAgent.getPosAgentFromGlobal(mSimulatedFocusGlobal), simulated_pos_agent);
 		mSimulatedPositionGlobal = gAgent.getPosGlobalFromAgent(simulated_pos_agent);
 
-		mRelativePos = lerp(mRelativePos, (simulated_pos_agent - mSubjectPosition) * ~mSubjectRotation, LLCriticalDamp::getInterpolant(0.05f));
+		mRelativePos = lerp(mRelativePos, (simulated_pos_agent - mSubjectPosition) * ~mSubjectRotation, LLSmoothInterpolation::getInterpolant(0.05f));
 	} // if position is not locked -----------------------------------------------------------
 
 
@@ -496,7 +496,7 @@ BOOL LLFollowCam::updateBehindnessConstraint(LLVector3 focus, LLVector3& cam_pos
 
 		if ( cameraOffsetAngle > mBehindnessMaxAngle )
 		{
-			F32 fraction = ((cameraOffsetAngle - mBehindnessMaxAngle) / cameraOffsetAngle) * LLCriticalDamp::getInterpolant(mBehindnessLag);
+			F32 fraction = ((cameraOffsetAngle - mBehindnessMaxAngle) / cameraOffsetAngle) * LLSmoothInterpolation::getInterpolant(mBehindnessLag);
 			cam_position = focus + horizontalSubjectBack * (slerp(fraction, camera_offset_rotation, LLQuaternion::DEFAULT));
 			cam_position.mV[VZ] = cameraZ; // clamp z value back to what it was before we started messing with it
 			constraint_active = TRUE;

indra/newview/llhudnametag.cpp

@@ -965,7 +965,7 @@ void LLHUDNameTag::updateAll()
 //		{
 //			continue;
 //		}
-		(*this_object_it)->mPositionOffset = lerp((*this_object_it)->mPositionOffset, (*this_object_it)->mTargetPositionOffset, LLCriticalDamp::getInterpolant(POSITION_DAMPING_TC));
+		(*this_object_it)->mPositionOffset = lerp((*this_object_it)->mPositionOffset, (*this_object_it)->mTargetPositionOffset, LLSmoothInterpolation::getInterpolant(POSITION_DAMPING_TC));
 	}
 }
 

indra/newview/llmaniprotate.cpp

@@ -242,7 +242,7 @@ void LLManipRotate::render()
 
 		if (mManipPart == LL_ROT_Z)
 		{
-			mManipulatorScales = lerp(mManipulatorScales, LLVector4(1.f, 1.f, SELECTED_MANIPULATOR_SCALE, 1.f), LLCriticalDamp::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE));
+			mManipulatorScales = lerp(mManipulatorScales, LLVector4(1.f, 1.f, SELECTED_MANIPULATOR_SCALE, 1.f), LLSmoothInterpolation::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE));
 			gGL.pushMatrix();
 			{
 				// selected part
@@ -253,7 +253,7 @@ void LLManipRotate::render()
 		}
 		else if (mManipPart == LL_ROT_Y)
 		{
-			mManipulatorScales = lerp(mManipulatorScales, LLVector4(1.f, SELECTED_MANIPULATOR_SCALE, 1.f, 1.f), LLCriticalDamp::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE));
+			mManipulatorScales = lerp(mManipulatorScales, LLVector4(1.f, SELECTED_MANIPULATOR_SCALE, 1.f, 1.f), LLSmoothInterpolation::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE));
 			gGL.pushMatrix();
 			{
 				static const LLMatrix4a rot = gGL.genRot( 90.f, 1.f, 0.f, 0.f );
@@ -265,7 +265,7 @@ void LLManipRotate::render()
 		}
 		else if (mManipPart == LL_ROT_X)
 		{
-			mManipulatorScales = lerp(mManipulatorScales, LLVector4(SELECTED_MANIPULATOR_SCALE, 1.f, 1.f, 1.f), LLCriticalDamp::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE));
+			mManipulatorScales = lerp(mManipulatorScales, LLVector4(SELECTED_MANIPULATOR_SCALE, 1.f, 1.f, 1.f), LLSmoothInterpolation::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE));
 			gGL.pushMatrix();
 			{
 				static const LLMatrix4a rot = gGL.genRot( 90.f, 0.f, 1.f, 0.f );
@@ -277,13 +277,13 @@ void LLManipRotate::render()
 		}
 		else if (mManipPart == LL_ROT_ROLL)
 		{
-			mManipulatorScales = lerp(mManipulatorScales, LLVector4(1.f, 1.f, 1.f, SELECTED_MANIPULATOR_SCALE), LLCriticalDamp::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE));
+			mManipulatorScales = lerp(mManipulatorScales, LLVector4(1.f, 1.f, 1.f, SELECTED_MANIPULATOR_SCALE), LLSmoothInterpolation::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE));
 		}
 		else if (mManipPart == LL_NO_PART)
 		{
 			if (mHighlightedPart == LL_NO_PART)
 			{
-				mManipulatorScales = lerp(mManipulatorScales, LLVector4(1.f, 1.f, 1.f, 1.f), LLCriticalDamp::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE));
+				mManipulatorScales = lerp(mManipulatorScales, LLVector4(1.f, 1.f, 1.f, 1.f), LLSmoothInterpolation::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE));
 			}
 
 			LLGLEnable cull_face(GL_CULL_FACE);
@@ -298,7 +298,7 @@ void LLManipRotate::render()
 				{
 					if (mHighlightedPart == LL_ROT_Z)
 					{
-						mManipulatorScales = lerp(mManipulatorScales, LLVector4(1.f, 1.f, SELECTED_MANIPULATOR_SCALE, 1.f), LLCriticalDamp::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE));
+						mManipulatorScales = lerp(mManipulatorScales, LLVector4(1.f, 1.f, SELECTED_MANIPULATOR_SCALE, 1.f), LLSmoothInterpolation::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE));
 						gGL.scalef(mManipulatorScales.mV[VZ], mManipulatorScales.mV[VZ], mManipulatorScales.mV[VZ]);
 						// hovering over part
 						gl_ring( mRadiusMeters, width_meters, LLColor4( 0.f, 0.f, 1.f, 1.f ), LLColor4( 0.f, 0.f, 1.f, 0.5f ), CIRCLE_STEPS, i);
@@ -317,7 +317,7 @@ void LLManipRotate::render()
 					gGL.rotatef( rot );
 					if (mHighlightedPart == LL_ROT_Y)
 					{
-						mManipulatorScales = lerp(mManipulatorScales, LLVector4(1.f, SELECTED_MANIPULATOR_SCALE, 1.f, 1.f), LLCriticalDamp::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE));
+						mManipulatorScales = lerp(mManipulatorScales, LLVector4(1.f, SELECTED_MANIPULATOR_SCALE, 1.f, 1.f), LLSmoothInterpolation::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE));
 						gGL.scalef(mManipulatorScales.mV[VY], mManipulatorScales.mV[VY], mManipulatorScales.mV[VY]);
 						// hovering over part
 						gl_ring( mRadiusMeters, width_meters, LLColor4( 0.f, 1.f, 0.f, 1.f ), LLColor4( 0.f, 1.f, 0.f, 0.5f ), CIRCLE_STEPS, i);
@@ -336,7 +336,7 @@ void LLManipRotate::render()
 					gGL.rotatef( rot );
 					if (mHighlightedPart == LL_ROT_X)
 					{
-						mManipulatorScales = lerp(mManipulatorScales, LLVector4(SELECTED_MANIPULATOR_SCALE, 1.f, 1.f, 1.f), LLCriticalDamp::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE));
+						mManipulatorScales = lerp(mManipulatorScales, LLVector4(SELECTED_MANIPULATOR_SCALE, 1.f, 1.f, 1.f), LLSmoothInterpolation::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE));
 						gGL.scalef(mManipulatorScales.mV[VX], mManipulatorScales.mV[VX], mManipulatorScales.mV[VX]);
 	
 						// hovering over part
@@ -352,7 +352,7 @@ void LLManipRotate::render()
 
 				if (mHighlightedPart == LL_ROT_ROLL)
 				{
-					mManipulatorScales = lerp(mManipulatorScales, LLVector4(1.f, 1.f, 1.f, SELECTED_MANIPULATOR_SCALE), LLCriticalDamp::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE));
+					mManipulatorScales = lerp(mManipulatorScales, LLVector4(1.f, 1.f, 1.f, SELECTED_MANIPULATOR_SCALE), LLSmoothInterpolation::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE));
 				}
 
 			}

indra/newview/llmanipscale.cpp

@@ -543,11 +543,11 @@ void LLManipScale::highlightManipulators(S32 x, S32 y)
 	{
 		if (mHighlightedPart == MANIPULATOR_IDS[i])
 		{
-			mManipulatorScales[i] = lerp(mManipulatorScales[i], SELECTED_MANIPULATOR_SCALE, LLCriticalDamp::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE));
+			mManipulatorScales[i] = lerp(mManipulatorScales[i], SELECTED_MANIPULATOR_SCALE, LLSmoothInterpolation::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE));
 		}
 		else
 		{
-			mManipulatorScales[i] = lerp(mManipulatorScales[i], 1.f, LLCriticalDamp::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE));
+			mManipulatorScales[i] = lerp(mManipulatorScales[i], 1.f, LLSmoothInterpolation::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE));
 		}
 	}
 

indra/newview/llmaniptranslate.cpp

@@ -1925,18 +1925,18 @@ void LLManipTranslate::renderTranslationHandles()
 			{
 				if (index == mManipPart - LL_X_ARROW || index == mHighlightedPart - LL_X_ARROW)
 				{
-					mArrowScales.mV[index] = lerp(mArrowScales.mV[index], SELECTED_ARROW_SCALE, LLCriticalDamp::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE ));
+					mArrowScales.mV[index] = lerp(mArrowScales.mV[index], SELECTED_ARROW_SCALE, LLSmoothInterpolation::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE ));
-					mPlaneScales.mV[index] = lerp(mPlaneScales.mV[index], 1.f, LLCriticalDamp::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE ));
+					mPlaneScales.mV[index] = lerp(mPlaneScales.mV[index], 1.f, LLSmoothInterpolation::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE ));
 				}
 				else if (index == mManipPart - LL_YZ_PLANE || index == mHighlightedPart - LL_YZ_PLANE)
 				{
-					mArrowScales.mV[index] = lerp(mArrowScales.mV[index], 1.f, LLCriticalDamp::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE ));
+					mArrowScales.mV[index] = lerp(mArrowScales.mV[index], 1.f, LLSmoothInterpolation::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE ));
-					mPlaneScales.mV[index] = lerp(mPlaneScales.mV[index], SELECTED_ARROW_SCALE, LLCriticalDamp::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE ));
+					mPlaneScales.mV[index] = lerp(mPlaneScales.mV[index], SELECTED_ARROW_SCALE, LLSmoothInterpolation::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE ));
 				}
 				else
 				{
-					mArrowScales.mV[index] = lerp(mArrowScales.mV[index], 1.f, LLCriticalDamp::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE ));
+					mArrowScales.mV[index] = lerp(mArrowScales.mV[index], 1.f, LLSmoothInterpolation::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE ));
-					mPlaneScales.mV[index] = lerp(mPlaneScales.mV[index], 1.f, LLCriticalDamp::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE ));
+					mPlaneScales.mV[index] = lerp(mPlaneScales.mV[index], 1.f, LLSmoothInterpolation::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE ));
 				}
 			}
 

indra/newview/llnetmap.cpp

@@ -262,7 +262,7 @@ void LLNetMap::draw()
 	static LLUICachedControl<S32> center("MiniMapCenter");
 	if (center != MAP_CENTER_NONE)
 	{
-		mCurPan = lerp(mCurPan, mTargetPan, LLCriticalDamp::getInterpolant(0.1f));
+		mCurPan = lerp(mCurPan, mTargetPan, LLSmoothInterpolation::getInterpolant(0.1f));
 	}
 
 	// Prepare a scissor region

indra/newview/lltexturectrl.cpp

@@ -602,11 +602,11 @@ void LLFloaterTexturePicker::draw()
 
 	if (gFocusMgr.childHasMouseCapture(getDragHandle()))
 	{
-		mContextConeOpacity = lerp(mContextConeOpacity, gSavedSettings.getF32("PickerContextOpacity"), LLCriticalDamp::getInterpolant(CONTEXT_FADE_TIME));
+		mContextConeOpacity = lerp(mContextConeOpacity, gSavedSettings.getF32("PickerContextOpacity"), LLSmoothInterpolation::getInterpolant(CONTEXT_FADE_TIME));
 	}
 	else
 	{
-		mContextConeOpacity = lerp(mContextConeOpacity, 0.f, LLCriticalDamp::getInterpolant(CONTEXT_FADE_TIME));
+		mContextConeOpacity = lerp(mContextConeOpacity, 0.f, LLSmoothInterpolation::getInterpolant(CONTEXT_FADE_TIME));
 	}
 
 	updateImageStats();

indra/newview/llviewerdisplay.cpp

@@ -1152,7 +1152,7 @@ void render_hud_attachments()
 	gAgentCamera.mHUDTargetZoom = llclamp(gAgentCamera.mHUDTargetZoom, (!gRlvAttachmentLocks.hasLockedHUD()) ? 0.1f : 0.85f, 1.f);
 // [/RLVa:KB]
 	// smoothly interpolate current zoom level
-	gAgentCamera.mHUDCurZoom = lerp(gAgentCamera.mHUDCurZoom, gAgentCamera.mHUDTargetZoom, LLCriticalDamp::getInterpolant(0.03f));
+	gAgentCamera.mHUDCurZoom = lerp(gAgentCamera.mHUDCurZoom, gAgentCamera.mHUDTargetZoom, LLSmoothInterpolation::getInterpolant(0.03f));
 
 	if (LLPipeline::sShowHUDAttachments && !gDisconnected && setup_hud_matrices())
 	{

indra/newview/llvoavatar.cpp

@@ -3298,7 +3298,7 @@ void LLVOAvatar::idleUpdateWindEffect()
 		LLVector3 velocity = getVelocity();
 		F32 speed = velocity.length();
 		//RN: velocity varies too much frame to frame for this to work
-		mRippleAccel.clearVec();//lerp(mRippleAccel, (velocity - mLastVel) * time_delta, LLCriticalDamp::getInterpolant(0.02f));
+		mRippleAccel.clearVec();//lerp(mRippleAccel, (velocity - mLastVel) * time_delta, LLSmoothInterpolation::getInterpolant(0.02f));
 		mLastVel = velocity;
 		LLVector4 wind;
 		wind.setVec(getRegion()->mWind.getVelocityNoisy(getPositionAgent(), 4.f) - velocity);
@@ -3321,11 +3321,11 @@ void LLVOAvatar::idleUpdateWindEffect()
 		F32 interp;
 		if (wind.mV[VW] > mWindVec.mV[VW])
 		{
-			interp = LLCriticalDamp::getInterpolant(0.2f);
+			interp = LLSmoothInterpolation::getInterpolant(0.2f);
 		}
 		else
 		{
-			interp = LLCriticalDamp::getInterpolant(0.4f);
+			interp = LLSmoothInterpolation::getInterpolant(0.4f);
 		}
 		mWindVec = lerp(mWindVec, wind, interp);
 	
@@ -4018,7 +4018,7 @@ LLVector3 LLVOAvatar::idleUpdateNameTagPosition(const LLVector3& root_pos_last)
 		mTargetRootToHeadOffset = head_offset;
 	}
 	
-	mCurRootToHeadOffset = lerp(mCurRootToHeadOffset, mTargetRootToHeadOffset, LLCriticalDamp::getInterpolant(0.2f));
+	mCurRootToHeadOffset = lerp(mCurRootToHeadOffset, mTargetRootToHeadOffset, LLSmoothInterpolation::getInterpolant(0.2f));
 
 	LLVector3 name_position = mRoot->getLastWorldPosition() + (mCurRootToHeadOffset * root_rot);
 	name_position += (local_camera_up * root_rot) - (projected_vec(local_camera_at * root_rot, camera_to_av));	
@@ -4594,7 +4594,7 @@ BOOL LLVOAvatar::updateCharacter(LLAgent &agent)
 
 			// Set the root rotation, but do so incrementally so that it
 			// lags in time by some fixed amount.
-			//F32 u = LLCriticalDamp::getInterpolant(PELVIS_LAG);
+			//F32 u = LLSmoothInterpolation::getInterpolant(PELVIS_LAG);
 			F32 pelvis_lag_time = 0.f;
 			if (self_in_mouselook)
 			{

indra/newview/llworldmapview.cpp

@@ -337,8 +337,8 @@ void LLWorldMapView::draw()
 	mVisibleRegions.clear();
 	
 	// animate pan if necessary
-	sPanX = lerp(sPanX, sTargetPanX, LLCriticalDamp::getInterpolant(0.1f));
+	sPanX = lerp(sPanX, sTargetPanX, LLSmoothInterpolation::getInterpolant(0.1f));
-	sPanY = lerp(sPanY, sTargetPanY, LLCriticalDamp::getInterpolant(0.1f));
+	sPanY = lerp(sPanY, sTargetPanY, LLSmoothInterpolation::getInterpolant(0.1f));
 
 	const S32 width = getRect().getWidth();
 	const S32 height = getRect().getHeight();
@@ -905,7 +905,7 @@ F32 LLWorldMapView::drawLegacySimTile(LLSimInfo& sim_info, S32 left, S32 top, S3
 	if (!sim_drawable || sim_fetching)
 		sim_info.setAlpha( 0.f );
 	else if (llabs(sim_info.getAlpha() - fade_target) > ALPHA_CUTOFF) //This gives us a nice fade when a visible sims texture finishes loading, or visiblity has changed.
-		sim_info.setAlpha(lerp(sim_info.getAlpha(), fade_target, LLCriticalDamp::getInterpolant(0.15f)));
+		sim_info.setAlpha(lerp(sim_info.getAlpha(), fade_target, LLSmoothInterpolation::getInterpolant(0.15f)));
 	F32 alpha = sim_info.getAlpha();
 	
 	//call setKnownDrawSize if image is still loading, or its actually being drawn.