directx9 meshesRésolu

Question

Salut a tous.
Voila le tuto du sdk :
cela affiche un tigre avec texture,mais comment faire pour choisir la position dans un espace 3d?
Merci.

HRESULT InitGeometry()
{
    LPD3DXBUFFER pD3DXMtrlBuffer;


    // Load the mesh from the specified file
    if( FAILED( D3DXLoadMeshFromX( "Tiger.x", D3DXMESH_SYSTEMMEM, 
                                   g_pd3dDevice, NULL, 
                                   &pD3DXMtrlBuffer, NULL, &g_dwNumMaterials, 
                                   &g_pMesh ) ) )
    {
        // If model is not in current folder, try parent folder
        if( FAILED( D3DXLoadMeshFromX( "..\Tiger.x", D3DXMESH_SYSTEMMEM, 
                                    g_pd3dDevice, NULL, 
                                    &pD3DXMtrlBuffer, NULL, &g_dwNumMaterials, 
                                    &g_pMesh ) ) )
        {
            MessageBox(NULL, "Could not find tiger.x", "Meshes.exe", MB_OK);
            return E_FAIL;
        }
    }


    // We need to extract the material properties and texture names from the 
    // pD3DXMtrlBuffer
    D3DXMATERIAL* d3dxMaterials = (D3DXMATERIAL*)pD3DXMtrlBuffer->GetBufferPointer();
    g_pMeshMaterials = new D3DMATERIAL9[g_dwNumMaterials];
    g_pMeshTextures  = new LPDIRECT3DTEXTURE9[g_dwNumMaterials];


    for( DWORD i=0; i<g_dwNumMaterials; i++ )
    {
        // Copy the material
        g_pMeshMaterials[i] = d3dxMaterials[i].MatD3D;


        // Set the ambient color for the material (D3DX does not do this)
        g_pMeshMaterials[i].Ambient = g_pMeshMaterials[i].Diffuse;


        g_pMeshTextures[i] = NULL;
        if( d3dxMaterials[i].pTextureFilename != NULL && 
            lstrlen(d3dxMaterials[i].pTextureFilename) > 0 )
        {
            // Create the texture
            if( FAILED( D3DXCreateTextureFromFile( g_pd3dDevice, 
                                                d3dxMaterials[i].pTextureFilename, 
                                                &g_pMeshTextures[i] ) ) )
            {
                // If texture is not in current folder, try parent folder
                const TCHAR* strPrefix = TEXT("..\");
                const int lenPrefix = lstrlen( strPrefix );
                TCHAR strTexture[MAX_PATH];
                lstrcpyn( strTexture, strPrefix, MAX_PATH );
                lstrcpyn( strTexture + lenPrefix, d3dxMaterials[i].pTextureFilename, MAX_PATH - lenPrefix );
                // If texture is not in current folder, try parent folder
                if( FAILED( D3DXCreateTextureFromFile( g_pd3dDevice, 
                                                    strTexture, 
                                                    &g_pMeshTextures[i] ) ) )
                {
                    MessageBox(NULL, "Could not find texture map", "Meshes.exe", MB_OK);
                }
            }
        }
    }


    // Done with the material buffer
    pD3DXMtrlBuffer->Release();


    return S_OK;
}

mezaya · Accepted Answer

j'ai pas de code mais par exemple si tu veut mettre donc tigre sur la position (0,0,10) donc 10 en Z. tu initialise la camera comme d'habitude et tu ajoute une translation de 10 en Z : D3DXMATRIX matProj,matView,matWorld; // initialise projection D3DXMatrixPerspectiveFovLH( &matProj, D3DX_PI/3.0f, 640.f/480.f, 0.1f, 100.0f ); pDevice->SetTransform( D3DTS_PROJECTION, &matProj ); // initialise camera D3DXVECTOR3 Veye(0.f,0.f,-3.0f), Vat(0.0f,0.0f,0.0f), Vup(0.0f,1.0f,0.0f); D3DXMatrixLookAtLH( &matView, &Veye, &Vat, &Vup ); pDevice->SetTransform( D3DTS_VIEW, &matView ); // initialise position objet D3DXMatrixTranslation( &matWorld , 0 , 0 , 10 ); pDevice -> SetTransform( D3DTS_WORLD , &matWorld ); Voili,Voilou

mezaya · Answer

la position se gere avec la matrice de transformation : il suffit
d'appliquer des translation rotation... pour faire bouger l'objet car
ton tigre est surement centr&#233;e en (0,0,0)



D3DXMATRIX Matrice;

pDevice -> SetTransform( D3DTS_WORLD , &Matrice );

Voili,Voilou

niketou · Answer

Excuse tu ne peux pas me file le code stp,j'y arrive pas :(

Directx9 meshes

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