ProcessInterpolatedList

void C_BaseEntity::ProcessInterpolatedList()
{
    CheckInterpolatedVarParanoidMeasurement();

    // Interpolate the minimal set of entities that need it.
    int iNext;
    for ( int iCur=g_InterpolationList.Head(); iCur != g_InterpolationList.InvalidIndex(); iCur=iNext )
    {
        iNext = g_InterpolationList.Next( iCur );
        C_BaseEntity *pCur = g_InterpolationList[iCur];

        pCur->m_bReadyToDraw = pCur->Interpolate( gpGlobals->curtime );
    }
}