1 files changed, 25 insertions, 16 deletions

diff --git a/indra/newview/llflexibleobject.cpp b/indra/newview/llflexibleobject.cpp
index cd4718381b..98c0c0bf51 100644
--- a/indra/newview/llflexibleobject.cpp
+++ b/indra/newview/llflexibleobject.cpp
@@ -270,9 +270,6 @@ void LLVolumeImplFlexible::setAttributesOfAllSections(LLVector3* inScale)
 	mSection[0].mVelocity.setVec(0,0,0);
 	mSection[0].mAxisRotation.setQuat(begin_rot,0,0,1);
 
-	LLVector3 parentSectionPosition = mSection[0].mPosition;
-	LLVector3 last_direction = mSection[0].mDirection;
-
 	remapSections(mSection, mInitializedRes, mSection, mSimulateRes);
 	mInitializedRes = mSimulateRes;
 
@@ -297,6 +294,9 @@ void LLVolumeImplFlexible::onSetVolume(const LLVolumeParams &volume_params, cons
 
 void LLVolumeImplFlexible::updateRenderRes()
 {
+	if (!mAttributes)
+		return;
+
 	LLDrawable* drawablep = mVO->mDrawable;
 
 	S32 new_res = mAttributes->getSimulateLOD();
@@ -342,10 +342,10 @@ void LLVolumeImplFlexible::doIdleUpdate()
 	if (drawablep)
 	{
 		//LLFastTimer ftm(FTM_FLEXIBLE_UPDATE);
-		
+
 		//ensure drawable is active
 		drawablep->makeActive();
-			
+
 		if (gPipeline.hasRenderDebugFeatureMask(LLPipeline::RENDER_DEBUG_FEATURE_FLEXIBLE))
 		{
 			bool visible = drawablep->isVisible();
@@ -381,21 +381,31 @@ void LLVolumeImplFlexible::doIdleUpdate()
 							id = parent->getVolumeInterfaceID();
 						}
 
-						if ((LLDrawable::getCurrentFrame()+id)%update_period == 0)
-						{
+				if (mVO->isRootEdit())
+				{
+					id = mID;
+				}
+				else
+				{
+					LLVOVolume* parent = (LLVOVolume*) mVO->getParent();
+					id = parent->getVolumeInterfaceID();
+				}
+
+				if ((LLDrawable::getCurrentFrame()+id)%update_period == 0)
+				{
 							sUpdateDelay[mInstanceIndex] = (S32) update_period-1;
 
-							updateRenderRes();
+					updateRenderRes();
 
-							gPipeline.markRebuild(drawablep, LLDrawable::REBUILD_POSITION, FALSE);
-						}
-					}
+					gPipeline.markRebuild(drawablep, LLDrawable::REBUILD_POSITION, FALSE);
 				}
+			}
+		}
 				else
 				{
 					sUpdateDelay[mInstanceIndex] = (S32) update_period;
-				}
-			}
+	}
+}
 
 		}
 	}
@@ -420,7 +430,6 @@ void LLVolumeImplFlexible::doFlexibleUpdate()
 	if ((mSimulateRes == 0 || !mInitialized) && mVO->mDrawable->isVisible()) 
 	{
 		BOOL force_update = mSimulateRes == 0 ? TRUE : FALSE;
-
 		doIdleUpdate();
 
 		if (!force_update || !gPipeline.hasRenderDebugFeatureMask(LLPipeline::RENDER_DEBUG_FEATURE_FLEXIBLE))
@@ -429,13 +438,13 @@ void LLVolumeImplFlexible::doFlexibleUpdate()
 		}
 	}
 
-	if(!mInitialized)
+	if(!mInitialized || !mAttributes)
 	{
 		//the object is not visible
 		return ;
 	}
 
-	// stinson 11/12/2012: Need to check with davep on the following.
+	// Fix for MAINT-1894
 	// Skipping the flexible update if render res is negative.  If we were to continue with a negative value,
 	// the subsequent S32 num_render_sections = 1<<mRenderRes; code will specify a really large number of
 	// render sections which will then create a length exception in the std::vector::resize() method.