1 files changed, 46 insertions, 15 deletions

diff --git a/linden/indra/newview/llvopartgroup.cpp b/linden/indra/newview/llvopartgroup.cpp
index 11d7341..fb91cfa 100644
--- a/linden/indra/newview/llvopartgroup.cpp
+++ b/linden/indra/newview/llvopartgroup.cpp
@@ -95,7 +95,7 @@ void LLVOPartGroup::setPixelAreaAndAngle(LLAgent &agent)
 {
         // mPixelArea is calculated during render
         F32 mid_scale = getMidScale();
-        F32 range = (getRenderPosition()-LLViewerCamera::getInstance()->getOrigin()).magVec();
+        F32 range = (getRenderPosition()-LLViewerCamera::getInstance()->getOrigin()).length();
 
         if (range < 0.001f || isHUDAttachment())                // range == zero
         {
@@ -133,15 +133,16 @@ F32 LLVOPartGroup::getPartSize(S32 idx)
         return 0.f;
 }
 
+LLVector3 LLVOPartGroup::getCameraPosition() const
+{
+        return gAgent.getCameraPositionAgent();
+}
+
 BOOL LLVOPartGroup::updateGeometry(LLDrawable *drawable)
 {
         LLFastTimer ftm(LLFastTimer::FTM_UPDATE_PARTICLES);
 
         dirtySpatialGroup();
-
-        LLVector3 at;
-        LLVector3 position_agent;
-        LLVector3 camera_agent = LLViewerCamera::getInstance()->getOrigin();
         
         S32 num_parts = mViewerPartGroupp->getCount();
         LLFace *facep;
@@ -187,9 +188,9 @@ BOOL LLVOPartGroup::updateGeometry(LLDrawable *drawable)
                 const LLViewerPart *part = mViewerPartGroupp->mParticles[i];
 
                 LLVector3 part_pos_agent(part->mPosAgent);
-                at = part_pos_agent - camera_agent;
+                LLVector3 at(part_pos_agent - LLViewerCamera::getInstance()->getOrigin());
 
-                F32 camera_dist_squared = at.magVecSquared();
+                F32 camera_dist_squared = at.lengthSquared();
                 F32 inv_camera_dist_squared;
                 if (camera_dist_squared > 1.f)
                         inv_camera_dist_squared = 1.f / camera_dist_squared;
@@ -278,36 +279,38 @@ void LLVOPartGroup::getGeometry(S32 idx,
 
         
         LLVector3 part_pos_agent(part.mPosAgent);
-        LLVector3 camera_agent = gAgent.getCameraPositionAgent();
+        LLVector3 camera_agent = getCameraPosition(); 
         LLVector3 at = part_pos_agent - camera_agent;
-        LLVector3 up, right;
+        LLVector3 up;
+        LLVector3 right;
 
         right = at % LLVector3(0.f, 0.f, 1.f);
-        right.normVec();
+        right.normalize();
         up = right % at;
-        up.normVec();
+        up.normalize();
 
         if (part.mFlags & LLPartData::LL_PART_FOLLOW_VELOCITY_MASK)
         {
                 LLVector3 normvel = part.mVelocity;
-                normvel.normVec();
+                normvel.normalize();
                 LLVector2 up_fracs;
                 up_fracs.mV[0] = normvel*right;
                 up_fracs.mV[1] = normvel*up;
-                up_fracs.normVec();
+                up_fracs.normalize();
                 LLVector3 new_up;
                 LLVector3 new_right;
                 new_up = up_fracs.mV[0] * right + up_fracs.mV[1]*up;
                 new_right = up_fracs.mV[1] * right - up_fracs.mV[0]*up;
                 up = new_up;
                 right = new_right;
-                up.normVec();
-                right.normVec();
+                up.normalize();
+                right.normalize();
         }
 
         right *= 0.5f*part.mScale.mV[0];
         up *= 0.5f*part.mScale.mV[1];
 
+
         const LLVector3& normal = -LLViewerCamera::getInstance()->getXAxis();
                 
         *verticesp++ = part_pos_agent + up - right;
@@ -355,6 +358,13 @@ LLParticlePartition::LLParticlePartition()
         mLODPeriod = 1;
 }
 
+LLHUDParticlePartition::LLHUDParticlePartition() :
+        LLParticlePartition()
+{
+        mDrawableType = LLPipeline::RENDER_TYPE_HUD;
+        mPartitionType = LLViewerRegion::PARTITION_HUD_PARTICLE;
+}
+
 void LLParticlePartition::addGeometryCount(LLSpatialGroup* group, U32& vertex_count, U32& index_count)
 {
         group->mBufferUsage = mBufferUsage;
@@ -480,3 +490,24 @@ F32 LLParticlePartition::calcPixelArea(LLSpatialGroup* group, LLCamera& camera)
         return 1024.f;
 }
 
+U32 LLVOHUDPartGroup::getPartitionType() const
+{ 
+        // Commenting out and returning PARTITION_NONE because DEV-16909 
+        // (SVC-2396: Particles not handled properly as hud) didn't work completely 
+        // so this disables HUD particles until they can be fixed properly. -MG
+        //return LLViewerRegion::PARTITION_HUD_PARTICLE; 
+        return LLViewerRegion::PARTITION_NONE;
+}
+
+LLDrawable* LLVOHUDPartGroup::createDrawable(LLPipeline *pipeline)
+{
+        pipeline->allocDrawable(this);
+        mDrawable->setLit(FALSE);
+        mDrawable->setRenderType(LLPipeline::RENDER_TYPE_HUD);
+        return mDrawable;
+}
+
+LLVector3 LLVOHUDPartGroup::getCameraPosition() const
+{
+        return LLVector3(-1,0,0);
+}