VLASTNIVERTEX vrchTrojuhl[] =
  {
    {400.0, 180.0, 0.0, 1.0, D3DCOLOR_XRGB(255,0,0)},
    {500.0, 380.0, 0.0, 1.0, D3DCOLOR_XRGB(0,255,0)},
    {300.0, 380.0, 0.0, 1.0, D3DCOLOR_XRGB(0,0,255)},
  };

  IDirect3DVertexBuffer9* pVertexBuffer = NULL;
  HRESULT hVysledek = g_pZarizeniDirect3D->CreateVertexBuffer(
    3*sizeof(VLASTNIVERTEX), 0, D3DFVF_XYZRHW | D3DFVF_DIFFUSE,
    D3DPOOL_DEFAULT, &pVertexBuffer, NULL);

  if (FAILED(hVysledek))
  {
    DXTRACE_ERR("Chyba při vytv. vertex bufferu.", hVysledek);
  }

  VOID* pVrcholy;
  hVysledek = pVertexBuffer->Lock(0, 0, (viod**)&pVrcholy, 0);
  if (FAILED(hVysledek))
  {
    DXTRACE_ERR("Chyba při zamyk. vertex bufferu.", hVysledek);
  }
  memcpy(pVrcholy, vrchTrojuhl, sizeof(vrchTrojuhl));
  pVertexBuffer->Unlock();

  g_pZarizeniDirect3D->Clear(0, NULL, D3DCLEAR_TARGET,
    D3DCOLOR_XRGB(0,0,0), 1.0, 0);
  g_pZarizeniDirect3D->SetStreamSource(0, pVertexBuffer, 0,
    sizeof(VLASTNI_VERTEX));
  g_pZarizeniDirect3D->SetFVF(D3DFVF_XYZRHW | D3DFVF_DIFFUSE);
  g_pZarizeniDirect3D->BeginScene();
  g_pZarizeniDirect3D->DrawPrimitive(D3DPT_TRIANGLELIST, 0, 1);
  g_pZarizeniDirect3D->EndScene();

  g_pZarizeniDirect3D->Present(NULL, NULL, NULL, NULL);

  if (pVertexbuffer)
    pVertexBuffer->Release();