DXUT 添加对话框背景

DXUT 添加对话框背景



第一步



在DXUTgui.cpp中添加



struct DXUT_SCREEN_VERTEX_TEXTURE

{

float x, y, z, r;

unsigned long color;

float tu, tv;



static DWORD FVF;

};

DWORD DXUT_SCREEN_VERTEX_TEXTURE::FVF = D3DFVF_XYZRHW | D3DFVF_DIFFUSE | D3DFVF_TEX1;



第二步



在DXUTgui.cpp中修改CDXUTDialog::OnRender9( floatfElapsedTime )函数



找到pd3dDevice->SetTextureStageState(0, D3DTSS_COLOROP, D3DTOP_SELECTARG2 );把它注释掉或删掉



将 if(!m_bMinimized && bBackgroundIsVisible )



{



内容替换为



DXUT_SCREEN_VERTEX_TEXTURE vertices[] =

{

{ ( float )m_x, ( float )m_y, 0,1, m_colorTopLeft, 0, 0},

{ ( float )m_x+m_width, ( float )m_y, 0,1, m_colorTopRight, 1, 0},

{ ( float )m_x+m_width, ( float )m_y+m_height, 0,1,m_colorBottomRight, 1, 1},



{ ( float )m_x, ( float )m_y, 0, 1,m_colorTopLeft, 0, 0},

{ ( float )m_x+ ( float)m_width, ( float )m_y+ ( float )m_height, 0,1, m_colorBottomRight, 1, 1},

{ ( float )m_x, ( float )m_y+ ( float )m_height, 0,1,m_colorBottomLeft, 0, 1}

};



pd3dDevice->SetVertexShader( NULL );

pd3dDevice->SetPixelShader( NULL );



pd3dDevice->SetRenderState( D3DRS_ZENABLE, FALSE );



if(m_iTexture !=-1)

pd3dDevice->SetTexture( 0,m_pManager->GetTextureNode(m_iTexture)->pTexture9 );

pd3dDevice->SetFVF( DXUT_SCREEN_VERTEX_TEXTURE::FVF );

pd3dDevice->DrawPrimitiveUP( D3DPT_TRIANGLEFAN, 4, vertices, sizeof(DXUT_SCREEN_VERTEX_TEXTURE ) );



}



第三步



在DXUTgui.h中找到CDXUTDialog类的声明



添加成员变量



int m_iTexture; 并在构造函数中初始化为-1



添加成员函数声明



void SetBackgroundTextures(const wchar_t*wch);



在DXUTgui.cpp中添加函数实现



voidCDXUTDialog::SetBackgroundTextures(const wchar_t* wch)

{

m_iTexture = m_pManager-> AddTexture(wch);

}



第四步



在SimpleSample.cpp的OnD3D9ResetDevice()中添加



g_HUD.SetBackgroundColors( D3DCOLOR_ARGB(255, 98, 138, 206 ),

D3DCOLOR_ARGB( 255, 255, 255, 255 ),

D3DCOLOR_ARGB( 255, 255, 255, 255 ),

D3DCOLOR_ARGB( 255, 255, 255, 255 ) );//材质背景颜色

g_HUD.SetSize( 170, 170 );

g_HUD.SetBackgroundTextures(L"bcgr1.jpg");添加对话框背景图片

当对话框填充窗口时, 就是为窗口背景