int CEditModel::PickSkeletal( PickSkeletalParam& Pick )
{
if( !GetSketetalFrame()|| !GetAnimateGroup() )
return GERROR;
CCamera* pCamera = CMainWindowTarget::GetInst()->GetCamera();
CMatrix matView = pCamera->getViewMatrix();
matView.InvertFast();
CMatrix matProj = pCamera->getProjectionMatrix();
CMatrix matViewProj = pCamera->getViewProjectMatrix();
UINT i = 0,j = 0;
for( i = 1; i < m_RenderMatrix.GetSkeletalCount(); i++ )
{
m_SkeletalPos[i].m_IsSelected = FALSE;
CMatrix tScaleMat;
CMatrix tRotateMat;
tRotateMat.SetRotateZ(-CMath::half_pi);
tScaleMat.SetScale(CVector3f(m_SkeletalPos[i].m_Scale));
if(!m_RenderMatrix.m_pMatrixUnit[i])
continue;
CMatrix matrix = m_RenderMatrix.m_pMatrixUnit[i]->GetMATRIX();
CVector3f PickVer[6];
CVector3f cur = CVector3f( (float)Pick.m_CurPos.x, (float)Pick.m_CurPos.y, 0);
float z = FLT_MAX;
int n1 = 0, n2 = 0;
for( j = 0; j < 6; j++ )
{
PickVer[j] = SklPos[j];
PickVer[j].FastMultiply(tScaleMat*tRotateMat*matrix );
//z = min( PickVer[j].z, z );//求出这个点的zubffer以便于之后选择离屏幕最近的那根骨骼
}
CVector3f v;
v.x = ( cur.x/Pick.m_Size.x - 1 ) / matProj._11;
v.y = -( cur.y/Pick.m_Size.y - 1 ) / matProj._22;
v.z = 1.0f;
CVector3f vPickRayDir,vPickRayOrig;
vPickRayDir.x = v.x*matView._11 + v.y*matView._21 + v.z*matView._31;
vPickRayDir.y = v.x*matView._12 + v.y*matView._22 + v.z*matView._32;
vPickRayDir.z = v.x*matView._13 + v.y*matView._23 + v.z*matView._33;
vPickRayOrig.x = matView._41;
vPickRayOrig.y = matView._42;
vPickRayOrig.z = matView._43;
float fu,fv,fd;
BOOL IsPicked = FALSE;
for( j = 0; j < 8; j++)
{
WORD* ind = SkeletalIndex + j*3;
IsPicked = CMath::IntersectTri(PickVer[ind[0]],PickVer[ind[1]],PickVer[ind[2]],vPickRayOrig,vPickRayDir,fu,fv,fd);
if(IsPicked)
break;
}
if( /*z<Pick.m_Z&&*/IsPicked )
{
//Pick.m_Z = z;
Pick.m_SkeletalID = i;
}
}
if( Pick.m_SkeletalID )
{
m_SkeletalPos[ Pick.m_SkeletalID ].m_IsSelected = TRUE;
}
Pick.m_SkeletalName = GetSketetalFrame()->GetRootSkeletal().GetSkeletalNameByID( Pick.m_SkeletalID );
DataChange();
return 0;
}
