/// BMP파일을 열어서 높이맵을 생성한다.
HRESULT ZTerrain::_BuildHeightMap( LPSTR lpFilename )
{
LPBYTE pDIB = DibLoadHandle( lpFilename );
if( !pDIB ) return E_FAIL;
m_cxDIB = DIB_CX( pDIB );
m_czDIB = DIB_CY( pDIB );
// 여기서 m_cxDIB나 m_czDIB가 (2^n+1)이 아닌경우 E_FAIL을 반환하도록 수정할 것
m_pvHeightMap = new TERRAINVERTEX[m_cxDIB * m_czDIB];
TERRAINVERTEX v;
for( int z = 0 ; z < m_czDIB ; z++ )
{
for( int x = 0 ; x < m_cxDIB ; x++ )
{
v.p.x = (float)( ( x - m_cxDIB / 2 ) * m_vfScale.x );
v.p.z = -(float)( ( z - m_czDIB / 2 ) * m_vfScale.z );
v.p.y = (float)( *( DIB_DATAXY_INV( pDIB, x, z ) ) ) * m_vfScale.y;
D3DXVec3Normalize( &v.n, &v.p );
v.t.x = (float)x / (float)( m_cxDIB - 1 );
v.t.y = (float)z / (float)( m_czDIB - 1 );
m_pvHeightMap[x + z * m_czDIB] = v;
}
}
DibDeleteHandle( pDIB );
return S_OK;
}
/// BMP파일을 열어서 높이맵을 생성한다.
HRESULT ZTerrain::_BuildHeightMap( const char* lpFilename )
{
#ifdef _UNICODE
char temp[256]={0,};
WideCharToMultiByte(CP_ACP, 0, lpFilename, -1, temp, 256, NULL, NULL);
LPBYTE pDIB = DibLoadHandle( temp );
#else
LPBYTE pDIB = DibLoadHandle( lpFilename );
#endif
if( !pDIB ) return E_FAIL;
char filename[256];
_splitpath_s(lpFilename,NULL,0,NULL,0,filename,256,NULL,0);
m_strNodeName = filename;
m_cxDIB = DIB_CX( pDIB );
m_czDIB = DIB_CY( pDIB );
// 여기서 m_cxDIB나 m_czDIB가 (2^n+1)이 아닌경우 E_FAIL을 반환하도록 수정할 것
m_pvHeightMap = new TERRAINVERTEX[m_cxDIB * m_czDIB];
TERRAINVERTEX v;
for( int z = 0 ; z < m_czDIB ; z++ )
{
for( int x = 0 ; x < m_cxDIB ; x++ )
{
v.p.x = (float)( ( x - m_cxDIB / 2 ) * m_vfScale.x );
v.p.z = -(float)( ( z - m_czDIB / 2 ) * m_vfScale.z );
v.p.y = (float)( *( DIB_DATAXY_INV( pDIB, x, z ) ) ) * m_vfScale.y;
D3DXVec3Normalize( &v.n, &v.p );
v.u = (float)x / (float)( m_cxDIB - 1 );
v.v = (float)z / (float)( m_czDIB - 1 );
m_pvHeightMap[x + z * m_czDIB] = v;
}
}
DibDeleteHandle( pDIB );
return S_OK;
}
