See my code:
const DWORD dwCustomFVF = (D3DFVF_XYZ|D3DFVF_DIFFUSE|D3DFVF_TEX1);struct SimpleVertex{ float x,y,z; DWORD diffuse; float u,v;};//wallSimpleVertex parede[4] ={ { -1.0f, 1.0f, 3.0f, 0, 0,0 }, { -1.0f, -1.0f, 3.0f, 0, 0,1 }, { 1.0f, 1.0f, 3.0f, 0, 1,0 }, { 1.0f, -1.0f, 3.0f, 0, 1,1 },};//object alphaSimpleVertex Vertices[4] ={ { -1.0f, 1.0f, 3.0f, 0, 0,0 }, { -1.0f, -1.0f, 3.0f, 0, 0,1 }, { 1.0f, 1.0f, 3.0f, 0, 1,0 }, { 1.0f, -1.0f, 3.0f, 0, 1,1 },};//configure all and load texturevoid AdjustStates(){ g_pd3dDevice->SetRenderState( D3DRS_CULLMODE, D3DCULL_NONE ); g_pd3dDevice->SetRenderState( D3DRS_LIGHTING, FALSE ); g_pd3dDevice->SetRenderState( D3DRS_ZENABLE, D3DZB_TRUE ); g_pd3dDevice->SetRenderState( D3DRS_SRCBLEND, D3DBLEND_SRCALPHA ); g_pd3dDevice->SetRenderState( D3DRS_DESTBLEND, D3DBLEND_DESTALPHA ); g_pd3dDevice->SetTextureStageState( 0, D3DTSS_ALPHAARG1, D3DTA_TEXTURE ); g_pd3dDevice->SetSamplerState(0, D3DSAMP_MINFILTER, D3DTEXF_LINEAR); g_pd3dDevice->SetSamplerState(0, D3DSAMP_MAGFILTER, D3DTEXF_LINEAR); g_pd3dDevice->SetSamplerState(0, D3DSAMP_MIPFILTER, D3DTEXF_LINEAR); D3DXMATRIX matProj; D3DXMatrixPerspectiveFovLH( &matProj, D3DX_PI/4, 1.5f, 1.0f, 100.0f ); g_pd3dDevice->SetTransform( D3DTS_PROJECTION, &matProj ); //create texture D3DXCreateTextureFromFile( g_pd3dDevice, L"textura.jpg", &texturaAlpha); D3DXCreateTextureFromFile( g_pd3dDevice, L"parede.jpg", &texturaWall );}//draw wallvoid drawParede(){ g_pd3dDevice->SetFVF(D3DFVF_TEX1); SetPosition(200,200,20); g_pd3dDevice->SetTexture(0, texturaWall ); g_pd3dDevice->DrawPrimitiveUP( D3DPT_TRIANGLESTRIP, 2, parede, sizeof(SimpleVertex) );}void Render(){ g_pd3dDevice->Clear( 0, NULL, D3DCLEAR_TARGET|D3DCLEAR_ZBUFFER, D3DCOLOR_XRGB(150,150,150), 1.0f, 0 ); if( SUCCEEDED( g_pd3dDevice->BeginScene() ) ) { drawParede(); SetPosition(1,1,1); g_pd3dDevice->SetFVF(dwCustomFVF); DWORD alpha = 255 * max (0, timeGetTime() / 15); for(int i = 0; i < 4; ++i) { //only alpha dont work Vertices.diffuse = D3DCOLOR_ARGB(alpha, alpha, alpha, alpha); } g_pd3dDevice->SetTexture(0, texturaAlpha); g_pd3dDevice->SetRenderState( D3DRS_ALPHABLENDENABLE, TRUE ); g_pd3dDevice->DrawPrimitiveUP( D3DPT_TRIANGLESTRIP, 2, Vertices, sizeof(SimpleVertex) ); g_pd3dDevice->SetRenderState( D3DRS_ALPHABLENDENABLE, FALSE); g_pd3dDevice->EndScene(); } g_pd3dDevice->Present( NULL, NULL, NULL, NULL );}
