/// Initialise a dynamic vertex buffer for rendering imposters. bool ImposterSystem::InitVertexBuffer() { int vertexSize = sizeof(ImposterVertex); int vertexBufferSize = m_MaxNumImposters * NUM_IMPOSTER_VERTS * vertexSize; int usage = D3DUSAGE_WRITEONLY | D3DUSAGE_DYNAMIC; int vertFVF = D3DFVF_XYZ | D3DFVF_DIFFUSE | D3DFVF_TEX1; HRESULT hr; LPDIRECT3DDEVICE9 pD3DDevice = DXUTGetD3DDevice(); hr = pD3DDevice->CreateVertexBuffer(vertexBufferSize, usage, vertFVF, D3DPOOL_DEFAULT, &m_pVertexBuffer, NULL); if (FAILED(hr)) { ReportD3DError(hr); return false; } return true; }