Mesh.cpp
资源名称:Direct3D.rar [点击查看]
上传用户:junlon
上传日期:2022-01-05
资源大小:39075k
文件大小:5k
源码类别:
DirextX编程
开发平台:
Visual C++
- //--------------------------------------------------------------------------------------
- // 主程序: Mesh.cpp , 作者:曾凡喜
- //
- // 本程序示例演示如何使用CZFXMesh类
- //
- // 完成时间:2008-05-11
- //--------------------------------------------------------------------------------------
- #include "zfxd3dUtility.h"
- #include "zfxMesh.h"
- #include <stdio.h>
- // D3D对象接口
- IDirect3D9* g_pd3d;
- // D3D设备接口
- IDirect3DDevice9* g_pd3dDevice;
- // 模型对象
- CZFXMesh g_mesh;
- // 纹理对象
- LPDIRECT3DTEXTURE9 g_pTex;
- bool g_useInnerTex = true;
- // 字体
- ID3DXFont* g_pFont = NULL;
- // 建立渲染环境
- bool Setup()
- {
- // 加载模型对象
- if(FAILED(g_mesh.LoadMeshFromFile(g_pd3dDevice, L"ball.x")))
- return false;
- // 加载纹理对象
- if(FAILED(D3DXCreateTextureFromFile(g_pd3dDevice, L"plane.bmp", &g_pTex)))
- g_pTex = NULL;
- // 设定渲染状态
- g_pd3dDevice->SetRenderState(D3DRS_AMBIENT, 0xffffffff);
- g_pd3dDevice->SetRenderState(D3DRS_LIGHTING, false);
- g_pd3dDevice->SetRenderState(D3DRS_CULLMODE, D3DCULL_NONE);
- // 设置投影矩阵
- D3DXMATRIX proj;
- D3DXMatrixPerspectiveFovLH(
- &proj,
- D3DX_PI * 0.25f, // 45 - degree
- 1024.0f/768.0f,
- 1.0f,
- 1000.0f);
- g_pd3dDevice->SetTransform(D3DTS_PROJECTION, &proj);
- return true;
- }
- bool DrawTextX()
- {
- //用于渲染侦FPS
- static int tmLastTime = GetTickCount();
- int tmNow = GetTickCount();
- //用于计算渲染FPS
- static int nFrameCount = 0;
- static int nFPS = 0;
- if(tmNow - tmLastTime > 1000)
- {
- //计算FPS
- tmLastTime = tmNow;
- nFPS = nFrameCount;
- nFrameCount = 0;
- }
- nFrameCount ++;
- char str[500];
- RECT rect;
- rect.left = rect.top = 10;
- rect.bottom = rect.top + 30;
- rect.right = rect.left + 260;
- sprintf_s(str, 500, "Current FPS:%d, please press Q to toggle WIREFRAME mode, A to toggle Inner texture mode", nFPS);
- g_pFont->DrawTextA(NULL, str, (int)strlen(str), &rect, DT_LEFT|DT_NOCLIP|DT_WORDBREAK, 0xffffff00);
- return true;
- }
- bool Display()
- {
- // 获取两次进入函数入口的时间间隔
- static float lastTime = (float)timeGetTime();
- float curTime = (float)timeGetTime();
- float timeDelta = (curTime - lastTime)*0.001f;
- lastTime = curTime;
- // 设定视口矩阵,你可以通过按下上下左右键改变视角
- static float angle = (3.0f * D3DX_PI) / 2.0f;
- static float height = 5.0f;
- if( ::GetAsyncKeyState(VK_LEFT) & 0x8000f )
- angle -= 0.5f * timeDelta;
- if( ::GetAsyncKeyState(VK_RIGHT) & 0x8000f )
- angle += 0.5f * timeDelta;
- if( ::GetAsyncKeyState(VK_UP) & 0x8000f )
- height += 1.5f * timeDelta;
- if( ::GetAsyncKeyState(VK_DOWN) & 0x8000f )
- height -= 1.5f * timeDelta;
- D3DXVECTOR3 eyept( cosf(angle) * 5.0f, height, sinf(angle) * 5.0f );
- D3DXVECTOR3 lookAt(0.0f, 0.0f, 0.0f);
- D3DXVECTOR3 up(0.0f, 1.0f, 0.0f);
- D3DXMATRIX view_mat;
- D3DXMatrixLookAtLH(&view_mat, &eyept, &lookAt, &up);
- g_pd3dDevice->SetTransform(D3DTS_VIEW, &view_mat);
- // 绘制场景
- g_pd3dDevice->Clear(0, 0, D3DCLEAR_TARGET | D3DCLEAR_ZBUFFER, 0x00000000, 1.0f, 0);
- g_pd3dDevice->BeginScene();
- // 渲染模型
- if(g_useInnerTex||!g_pTex)
- g_mesh.Render(g_pd3dDevice);
- else
- g_mesh.Render(g_pd3dDevice, &g_pTex);
- // 在屏幕上写字
- if(g_pFont)
- DrawTextX();
- g_pd3dDevice->EndScene();
- g_pd3dDevice->Present(0, 0, 0, 0);
- return true;
- }
- bool CleanUp()
- {
- SAFE_RELEASE(g_pd3dDevice);
- SAFE_RELEASE(g_pd3d);
- g_mesh.Release();
- SAFE_RELEASE(g_pTex);
- return true;
- }
- int WINAPI WinMain(HINSTANCE hInstance,
- HINSTANCE prevInstance,
- PSTR cmdLine,
- int showCmd)
- {
- // 应用程序初始化
- if(!InitD3DApp(hInstance, false/*true代表窗口模式*/,
- D3DDEVTYPE_HAL, &g_pd3d, &g_pd3dDevice, L"Mesh"/*窗口标题*/, 1024, 768))
- {
- MessageBoxW(0, L"应用程序初始化失败", 0, 0);
- return 0;
- }
- // 创建字体
- if(!InitDXFont(g_pd3dDevice, &g_pFont, L"Times New Roman"))
- g_pFont = NULL;
- Setup();
- // 进入消息循环
- MSG msg;
- ZeroMemory(&msg, sizeof(msg));
- while(msg.message != WM_QUIT)
- {
- if(PeekMessage(&msg, 0, 0, 0, PM_REMOVE))
- {
- TranslateMessage(&msg);
- DispatchMessage(&msg);
- }
- else
- {
- Display();
- }
- }
- CleanUp();
- return 0;
- }
- // 消息循环函数
- LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
- {
- static bool bWireFrame = false;
- switch( msg )
- {
- case WM_DESTROY:
- ::PostQuitMessage(0);
- break;
- case WM_KEYDOWN:
- if( wParam == VK_ESCAPE )
- ::DestroyWindow(hwnd);
- break;
- case WM_CHAR:
- if(wParam == 'q')
- {
- bWireFrame = !bWireFrame;
- if(bWireFrame)
- g_pd3dDevice->SetRenderState( D3DRS_FILLMODE, D3DFILL_WIREFRAME );
- else
- g_pd3dDevice->SetRenderState( D3DRS_FILLMODE, D3DFILL_SOLID );
- }
- else if(wParam == 'a')
- g_useInnerTex = !g_useInnerTex;
- break;
- }
- return ::DefWindowProc(hwnd, msg, wParam, lParam);
- }