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Mesh skinning in software

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hi all , i'm trying to implement skinned mesh with dx9 , i know the background theory and the interfaces of dx9 but i'm facing a problem with the code below (tiny.x display in a fuzzy manner like the vertex data are not well transformed by the transform matrices ?) precision : the flow is Render() wich call Update() wich call ID3DXAnimationController->Advance() , SetupBoneMatrices() and UpdateMatricesBySoftware(). here is the code : void CSkinnedMesh::UpdateMatricesBySoftware(meshContainer *m) { ppTransformMatrices = new D3DXMATRIXA16[m->nBones]; for(UINT i=0;i<m->nBones;i++) { frame *f = reinterpret_cast<frame*>(D3DXFrameFind(root,m->pSkinInfo->GetBoneName(i))); D3DXMatrixMultiply(&ppTransformMatrices,&m->pBoneOffsetMatrices,&f->matCombined); } PBYTE *src; PBYTE *dst; m->origMesh->LockVertexBuffer(D3DLOCK_READONLY,(void**)&src); m->MeshData.pMesh->LockVertexBuffer(0,(void**)&dst); m->pSkinInfo->UpdateSkinnedMesh(ppTransformMatrices,NULL,src,dst); m->origMesh->UnlockVertexBuffer(); m->MeshData.pMesh->UnlockVertexBuffer(); } void CSkinnedMesh::SetupBoneMatrices(frame *f,D3DXMATRIX parentMatrix) { D3DXMatrixMultiply(&f->matCombined,&parentMatrix,&f->TransformationMatrix); if(f->pFrameFirstChild) SetupBoneMatrices(reinterpret_cast<frame*>(f->pFrameFirstChild),f->matCombined); if(f->pFrameSibling) SetupBoneMatrices(reinterpret_cast<frame*>(f->pFrameSibling),parentMatrix); } void CSkinnedMesh::Update(float time,meshContainer *m) { Animation->AdvanceTime(time,0); // Animation is a pointer to ID3DXAnimationController D3DXMATRIX i; D3DXMatrixIdentity(&i); SetupBoneMatrices(root,i); UpdateMatricesBySoftware(m); } D3DXFRAME *frameMesh = FindMesh(root); meshContainer *m = reinterpret_cast<meshContainer *>(frameMesh->pMeshContainer); LPD3DXMESH& mesh = m->MeshData.pMesh; Update(0.001f,m); tss(0,cop,arg1); tss(0,carg1,texture); D3DXMATRIX Identity; D3DXMatrixIdentity(&Identity); dev->SetTransform(D3DTS_WORLD, &Identity); // RENDERING DU PREMIER MESH for(UINT i=0;i<m->NumAttrib;i++) { dev->SetTexture(0,m->materials.tex); dev->SetMaterial(m->materials.mat); mesh->DrawSubset(i); } } Thanks in advance for any help ...

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