SH-3909 Support avatar height offset

Adding a new visual param that allows users to manually adjust an offset for
how far off the ground (+ or -) their avatar's root bone is.

Supports the +-2m range people are used to adjusting in their viewers, but
new implementation should support server-generated appearances.

2 files changed, 9 insertions, 1 deletions

diff --git a/indra/llappearance/llavatarappearance.cpp b/indra/llappearance/llavatarappearance.cpp
index 89e64822f8..2d5744bb5e 100755
--- a/indra/llappearance/llavatarappearance.cpp
+++ b/indra/llappearance/llavatarappearance.cpp
@@ -462,6 +462,10 @@ void LLAvatarAppearance::computeBodySize()
 
 	LLVector3 foot  = mFootLeftp->getPosition();
 
+	F32 old_offset = mAvatarOffset.mV[VZ];
+
+	mAvatarOffset.mV[VZ] = getVisualParamWeight(11001);
+
 	mPelvisToFoot = hip.mV[VZ] * pelvis_scale.mV[VZ] -
 				 	knee.mV[VZ] * hip_scale.mV[VZ] -
 				 	ankle.mV[VZ] * knee_scale.mV[VZ] -
@@ -481,7 +485,10 @@ void LLAvatarAppearance::computeBodySize()
 	new_body_size.mV[VX] = DEFAULT_AGENT_DEPTH;
 	new_body_size.mV[VY] = DEFAULT_AGENT_WIDTH;
 
-	if (new_body_size != mBodySize)
+	mAvatarOffset.mV[VX] = 0.0f;
+	mAvatarOffset.mV[VY] = 0.0f;
+
+	if (new_body_size != mBodySize || old_offset != mAvatarOffset.mV[VZ])
 	{
 		mBodySize = new_body_size;
 		bodySizeChanged();
diff --git a/indra/llappearance/llavatarappearance.h b/indra/llappearance/llavatarappearance.h
index 11ea5e5a46..bce2540258 100755
--- a/indra/llappearance/llavatarappearance.h
+++ b/indra/llappearance/llavatarappearance.h
@@ -160,6 +160,7 @@ protected:
 	//--------------------------------------------------------------------
 public:
 	LLVector3			mBodySize;
+	LLVector3			mAvatarOffset;
 protected:
 	F32					mPelvisToFoot;