diff --git a/include/osgAnimation/MorphTransformHardware b/include/osgAnimation/MorphTransformHardware
index fde644a96..b061cccae 100644
--- a/include/osgAnimation/MorphTransformHardware
+++ b/include/osgAnimation/MorphTransformHardware
@@ -38,7 +38,13 @@ namespace osgAnimation
         META_Object(osgAnimation,MorphTransformHardware);
 
         virtual void operator()(MorphGeometry&);
-        void setShader(osg::Shader*);
+
+        inline void setShader(osg::Shader*s){_shader=s;}
+        inline osg::Shader * getShader()const{return _shader;}
+
+        ///texture unit reserved for morphtarget TBO default is 7
+        void setReservedTextureUnit(unsigned int t){_reservedTextureUnit=t;}
+        unsigned int getReservedTextureUnit() const {return _reservedTextureUnit;}
 
     protected:
 
@@ -49,6 +55,7 @@ namespace osgAnimation
         osg::ref_ptr<osg::Shader> _shader;
 
         bool _needInit;
+        unsigned int _reservedTextureUnit;
     };
 }
 
diff --git a/include/osgAnimation/RigTransformHardware b/include/osgAnimation/RigTransformHardware
index cbb825e16..91c586d33 100644
--- a/include/osgAnimation/RigTransformHardware
+++ b/include/osgAnimation/RigTransformHardware
@@ -43,12 +43,16 @@ namespace osgAnimation
         typedef std::map<std::string, unsigned int> BoneNamePaletteIndex;
         typedef std::vector<osg::Matrix> MatrixPalette;
 
-        osg::Vec4Array* getVertexAttrib(unsigned int index);
-        unsigned int getNumVertexAttrib() const     {return _boneWeightAttribArrays.size();}
+        ///set the first Vertex Attribute Array index of the rig generated by this technic (default:11)
+        void setFirstVertexAttributeTarget(unsigned int i){ _minAttribIndex=i;}
+        unsigned int getFirstVertexAttributeTarget()const { return _minAttribIndex;}
 
         void setShader(osg::Shader* shader)         {       _shader = shader;             }
         osg::Shader* getShader() const              {       return _shader;               }
 
+        osg::Vec4Array* getVertexAttrib(unsigned int index);
+        unsigned int getNumVertexAttrib() const     {return _boneWeightAttribArrays.size();}
+
         const unsigned int &getNumBonesPerVertex() const{   return _bonesPerVertex;       }
         const unsigned int &getNumVertexes() const      {   return _nbVertexes;           }
 
@@ -74,7 +78,7 @@ namespace osgAnimation
         osg::ref_ptr<osg::Shader> _shader;
 
         bool _needInit;
-
+        unsigned int _minAttribIndex;
         bool buildPalette(const BoneMap& boneMap ,const RigGeometry& rig);
 
     };
diff --git a/src/osgAnimation/MorphTransformHardware.cpp b/src/osgAnimation/MorphTransformHardware.cpp
index 86df7b465..f0915bbf1 100644
--- a/src/osgAnimation/MorphTransformHardware.cpp
+++ b/src/osgAnimation/MorphTransformHardware.cpp
@@ -19,29 +19,23 @@
 #include <sstream>
 
 ///texture unit reserved for morphtarget TBO
-#define MORPHTEXTUREUNIT 7
+#define DEFAULTMORPHTEXTUREUNIT 7
 
 using namespace osgAnimation;
 
-MorphTransformHardware::MorphTransformHardware()
+MorphTransformHardware::MorphTransformHardware():_needInit(true),_reservedTextureUnit(DEFAULTMORPHTEXTUREUNIT)
 {
-    _needInit = true;
-
 }
 
 MorphTransformHardware::MorphTransformHardware(const MorphTransformHardware& rth, const osg::CopyOp& copyop):
     MorphTransform(rth, copyop),
     _uniformTargetsWeight(rth._uniformTargetsWeight),
     _shader(rth._shader),
-    _needInit(rth._needInit)
+    _needInit(rth._needInit),
+    _reservedTextureUnit(rth._reservedTextureUnit)
 {
 }
 
-void MorphTransformHardware::setShader(osg::Shader* shader)
-{
-    _shader = shader;
-}
-
 bool MorphTransformHardware::init(MorphGeometry& morphGeometry)
 {
     osg::Vec3Array* pos = dynamic_cast<osg::Vec3Array*>(morphGeometry.getVertexArray());
@@ -104,7 +98,7 @@ bool MorphTransformHardware::init(MorphGeometry& morphGeometry)
 
     //create TBO Texture handle
     osg::Uniform * morphTBOHandle=new osg::Uniform(osg::Uniform::SAMPLER_BUFFER,"morphTargets");
-    morphTBOHandle->set(MORPHTEXTUREUNIT);
+    morphTBOHandle->set(_reservedTextureUnit);
 
     //create dynamic uniform for morphtargets animation weights
     _uniformTargetsWeight=new osg::Uniform(osg::Uniform::FLOAT,"morphWeights",morphlist.size());
@@ -174,7 +168,7 @@ bool MorphTransformHardware::init(MorphGeometry& morphGeometry)
 
     osg::ref_ptr<osg::StateSet> ss = morphGeometry.getOrCreateStateSet();
     ss->addUniform(_uniformTargetsWeight);
-    ss->setTextureAttribute(MORPHTEXTUREUNIT,morphTargetsTBO);
+    ss->setTextureAttribute(_reservedTextureUnit,morphTargetsTBO);
     ss->addUniform( morphTBOHandle);
     ss->addUniform(new osg::Uniform("nbMorphVertex", morphGeometry.getVertexArray()->getNumElements()));
 
diff --git a/src/osgAnimation/RigTransformHardware.cpp b/src/osgAnimation/RigTransformHardware.cpp
index fb51cb177..ae2e0dfa6 100644
--- a/src/osgAnimation/RigTransformHardware.cpp
+++ b/src/osgAnimation/RigTransformHardware.cpp
@@ -20,12 +20,13 @@
 
 using namespace osgAnimation;
 
-
+#define DEFAULT_FIRST_VERTATTRIB_TARGETTED 11
 RigTransformHardware::RigTransformHardware()
 {
     _needInit = true;
     _bonesPerVertex = 0;
     _nbVertexes = 0;
+    _minAttribIndex = DEFAULT_FIRST_VERTATTRIB_TARGETTED;
 }
 
 RigTransformHardware::RigTransformHardware(const RigTransformHardware& rth, const osg::CopyOp& copyop):
@@ -37,7 +38,8 @@ RigTransformHardware::RigTransformHardware(const RigTransformHardware& rth, cons
     _boneWeightAttribArrays(rth._boneWeightAttribArrays),
     _uniformMatrixPalette(rth._uniformMatrixPalette),
     _shader(rth._shader),
-    _needInit(rth._needInit)
+    _needInit(rth._needInit),
+    _minAttribIndex(rth._minAttribIndex)
 {
 }
 
@@ -198,7 +200,7 @@ bool RigTransformHardware::prepareData(RigGeometry& rig)
         OSG_INFO << "Shader " << str << std::endl;
     }
 
-    unsigned int attribIndex = 11;
+    unsigned int attribIndex = _minAttribIndex;
     unsigned int nbAttribs = getNumVertexAttrib();
     if(nbAttribs==0)
         OSG_WARN << "nbAttribs== " << nbAttribs << std::endl;