版权声明:转载请注明出处。 https://blog.csdn.net/baidu_38304645/article/details/82837186
运行结果:
源代码:
#include <d3d9.h>
#include <d3dx9.h>
#include <time.h>
#define WINDOW_WIDTH 800
#define WINDOW_HEIGHT 600
#define WINDOW_TITLE L"顶点缓存"
#define SAFE_RELEASE(p) { if(p) {(p)->Release(); (p) = NULL;}} //销毁指针
//------------------------------------------------------------------------------------------------------------
//【顶点缓存使用步骤一】:设计顶点格式
//------------------------------------------------------------------------------------------------------------
struct CUSTOMVERTEX
{
float x, y, z, rhw; //顶点的三维坐标值
DWORD color; //顶点的颜色值
};
#define D3DFVF_CUSTOMVERTEX (D3DFVF_XYZRHW | D3DFVF_DIFFUSE) //FVF灵活顶点格式
//---------------------------------------【全局变量声明部分】------------------------------------------------
//描述:全局变量的声明
//-----------------------------------------------------------------------------------------------------------
LPDIRECT3DDEVICE9 g_pd3dDevice; //Direct 3D设备对象
ID3DXFont* g_pFont; //字体COM接口
LPDIRECT3DVERTEXBUFFER9 g_pVertexBuffer; //顶点缓冲区对象
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
HRESULT Direct3D_Init(HWND); //在这个函数中继续Direct3D的初始化
HRESULT Objects_Init(HWND); //在这个函数中进行要绘制的物体的资源初始化
void Direct3D_Render(HWND); //在这个函数中进行Direct3D渲染代码的书写
void Direct3D_ClearUp(); //在这个函数中清理COM资源以及其他资源
//----------------------------------------【WinMain()函数】-------------------------------------------------
//描述:Windows应用程序的入口函数
//-------------------------------------------------------------------------------------------------------------
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPreInstance, LPSTR lpCmdLine, int nCmdShow)
{
WNDCLASSEX wndClass = {0};
wndClass.cbSize = sizeof(WNDCLASSEX);
wndClass.style = CS_HREDRAW | CS_VREDRAW;
wndClass.lpfnWndProc = (WNDPROC)WndProc;
wndClass.cbClsExtra = 0;
wndClass.cbWndExtra = 0;
wndClass.hInstance = hInstance;
wndClass.hIcon = (HICON)LoadImage(NULL, L"icon.ico", IMAGE_ICON, 0, 0, LR_LOADFROMFILE | LR_DEFAULTSIZE);
wndClass.hCursor = LoadCursor(NULL, IDC_ARROW);
wndClass.hbrBackground = (HBRUSH)GetStockObject(GRAY_BRUSH);
wndClass.lpszMenuName = NULL;
wndClass.lpszClassName = L"3DGameBase";
if(!RegisterClassEx(&wndClass))
return -1;
HWND hWnd = CreateWindow(L"3DGameBase", WINDOW_TITLE, WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT,
WINDOW_WIDTH, WINDOW_HEIGHT, NULL, NULL, hInstance, NULL);
MoveWindow(hWnd, 250, 80, WINDOW_WIDTH, WINDOW_HEIGHT, true);
ShowWindow(hWnd, nCmdShow);
UpdateWindow(hWnd);
PlaySound(L"Final Fantasy XIII.wav", NULL, SND_LOOP | SND_ASYNC | SND_FILENAME);
if(FAILED(Direct3D_Init(hWnd)))
MessageBox(hWnd, L"Direct3D 初始化失败!", L"消息窗口", 0);
MSG msg = {0};
while(msg.message != WM_QUIT)
{
if(PeekMessage(&msg, 0, 0, 0, PM_REMOVE))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
else
Direct3D_Render(hWnd);
}
UnregisterClass(L"3DGameBase", wndClass.hInstance);
return 0;
}
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
switch(message)
{
case WM_PAINT:
Direct3D_Render(hWnd);
ValidateRect(hWnd, NULL); //使窗口区域生效
break;
case WM_KEYDOWN:
if(wParam == VK_ESCAPE)
DestroyWindow(hWnd);
break;
case WM_DESTROY:
//调用自定义的资源清理函数Direct3D_ClearUp();进行退出前的资源清理
Direct3D_ClearUp();
PostQuitMessage(0);
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
return 0;
}
//---------------------------------------------【Direct3D_Init()函数】-----------------------------------------
//描述:Direct3D初始化函数,进行Direct3D的初始化
//---------------------------------------------------------------------------------------------------------------
HRESULT Direct3D_Init(HWND hWnd)
{
//---------------------------------------------------------------------------------------------------------------
//【Direct3D初始化步骤一】:创建Direct3D接口对象,以便用该Direct3D对象创建Direct3D设备对象
//---------------------------------------------------------------------------------------------------------------
LPDIRECT3D9 pD3D = NULL; //Direct3D接口对象的创建。
if((pD3D = Direct3DCreate9(D3D_SDK_VERSION)) == NULL) //初始化Direct3D接口对象,并进行DirectX版本协商。
return E_FAIL;
//---------------------------------------------------------------------------------------------------------------
//【Direct3D初始化步骤二】:获取硬件设备信息
//---------------------------------------------------------------------------------------------------------------
D3DCAPS9 caps;
int vp = 0;
if(FAILED(pD3D->GetDeviceCaps(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, &caps)))
return E_FAIL;
if(caps.DevCaps & D3DDEVCAPS_HWTRANSFORMANDLIGHT)
vp = D3DCREATE_HARDWARE_VERTEXPROCESSING; //支持硬件顶点运算,采用硬件顶点运算
else
vp = D3DCREATE_SOFTWARE_VERTEXPROCESSING; //不支持硬件顶点运算,采用软件顶点运算
//---------------------------------------------------------------------------------------------------------------
//【Direct3D初始化步骤三】:填充D3DPRESENT_PARAMETERS结构体
//---------------------------------------------------------------------------------------------------------------
D3DPRESENT_PARAMETERS d3dpp;
ZeroMemory(&d3dpp, sizeof(d3dpp));
d3dpp.BackBufferWidth = WINDOW_WIDTH;
d3dpp.BackBufferHeight = WINDOW_HEIGHT;
d3dpp.BackBufferFormat = D3DFMT_A8R8G8B8;
d3dpp.BackBufferCount = 1;
d3dpp.MultiSampleType = D3DMULTISAMPLE_NONE;
d3dpp.MultiSampleQuality = 0;
d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
d3dpp.hDeviceWindow = hWnd;
d3dpp.Windowed = true;
d3dpp.EnableAutoDepthStencil = true;
d3dpp.AutoDepthStencilFormat = D3DFMT_D24S8;
d3dpp.Flags = 0;
d3dpp.FullScreen_RefreshRateInHz = 0;
d3dpp.PresentationInterval = D3DPRESENT_INTERVAL_IMMEDIATE;
//---------------------------------------------------------------------------------------------------------------
//【Direct3D初始化步骤四】:创建Direct3D设备接口。
//---------------------------------------------------------------------------------------------------------------
if(FAILED(pD3D->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, hWnd, vp, &d3dpp, &g_pd3dDevice)))
return E_FAIL;
SAFE_RELEASE(pD3D); //LPDIRECT3D9接口对象的使命完成,将其释放掉
if(FAILED(Objects_Init(hWnd))) // 调用一次Objects_Init,进行渲染资源的初始化
return E_FAIL;
return S_OK;
}
//---------------------------------------------------------------------------------------------------------------
//------------------------------------------【Objects_Init()】函数---------------------------------------------
//描述:渲染资源初始化函数,在此函数中进行要被渲染的物体的资源的初始化
//---------------------------------------------------------------------------------------------------------------
HRESULT Objects_Init(HWND hWnd)
{
//创建字体
if(FAILED(D3DXCreateFont(g_pd3dDevice, 72, 0, 0, 1, false, DEFAULT_CHARSET, OUT_DEFAULT_PRECIS,
DEFAULT_QUALITY, 0, TEXT("微软雅黑"), &g_pFont)))
return E_FAIL;
srand(time(NULL)); //初始化时间种子
//---------------------------------------------------------------------------------------------------------------
//【顶点缓存使用步骤二】:创建顶点缓存
//---------------------------------------------------------------------------------------------------------------
if(FAILED(g_pd3dDevice->CreateVertexBuffer(6 * sizeof(CUSTOMVERTEX), 0, D3DFVF_CUSTOMVERTEX, D3DPOOL_DEFAULT,
&g_pVertexBuffer, NULL)))
return E_FAIL;
//---------------------------------------------------------------------------------------------------------------
//【顶点缓存使用步骤三】:访问顶点缓存
//---------------------------------------------------------------------------------------------------------------
//顶点缓存数据的设置
CUSTOMVERTEX vertices[] =
{
//给顶点设置随机的颜色与位置
{300.0f, 100.0f, 0.0f, 1.0f, D3DCOLOR_XRGB(rand() % 256, rand() % 256, rand() % 256)},
{500.0f, 100.0f, 0.0f, 1.0f, D3DCOLOR_XRGB(rand() % 256, rand() % 256, rand() % 256)},
{300.0f, 300.0f, 0.0f, 1.0f, D3DCOLOR_XRGB(rand() % 256, rand() % 256, rand() % 256)},
{300.0f, 300.0f, 0.0f, 1.0f, D3DCOLOR_XRGB(rand() % 256, rand() % 256, rand() % 256)},
{800.0f*rand()/(RAND_MAX+1), 600.0f*rand()/(RAND_MAX+1), 0.0f, 1.0f, D3DCOLOR_XRGB(rand() % 256, rand() % 256, rand() % 256)},
{800.0f*rand()/(RAND_MAX+1), 600.0f*rand()/(RAND_MAX+1), 0.0f, 1.0f, D3DCOLOR_XRGB(rand() % 256, rand() % 256, rand() % 256)}
};
//填充顶点缓冲区
void *pVertices = NULL;
if(FAILED(g_pVertexBuffer->Lock(0, sizeof(vertices), &pVertices, 0)))
return E_FAIL;
memcpy(pVertices, vertices, sizeof(vertices)); //将vertices内容复制到pVertices
g_pVertexBuffer->Unlock();
g_pd3dDevice->SetRenderState(D3DRS_CULLMODE, false); //wq关闭背面消隐,使得绘出的三角形都可以显示
return S_OK;
}
//----------------------------------------【Direct3D_Render()函数】--------------------------------------------
//描述:使用Direct3D进行渲染
//---------------------------------------------------------------------------------------------------------------
void Direct3D_Render(HWND hWnd)
{
//---------------------------------------------------------------------------------------------------------------
//【Direct3D渲染步骤一】:清屏操作
//---------------------------------------------------------------------------------------------------------------
g_pd3dDevice->Clear(0, NULL, D3DCLEAR_TARGET, D3DCOLOR_XRGB(0,0,0), 1.0f, 0);
//---------------------------------------------------------------------------------------------------------------
//【Direct3D渲染步骤二】:开始绘制
//---------------------------------------------------------------------------------------------------------------
g_pd3dDevice->BeginScene(); //开始绘制
//---------------------------------------------------------------------------------------------------------------
//【Direct3D渲染步骤三】:正式绘制
//---------------------------------------------------------------------------------------------------------------
g_pd3dDevice->SetRenderState(D3DRS_SHADEMODE, D3DSHADE_GOURAUD); //对渲染状态进行设置 使用了高洛德模式, 效果好, 速度较慢。
//---------------------------------------------------------------------------------------------------------------
//【顶点缓存使用步骤四】:绘制图形
//---------------------------------------------------------------------------------------------------------------
g_pd3dDevice->SetStreamSource(0, g_pVertexBuffer, 0, sizeof(CUSTOMVERTEX)); //把包含的集合体信息的顶点缓存与渲染流水线相关联
g_pd3dDevice->SetFVF(D3DFVF_CUSTOMVERTEX); //指定我们使用的灵活顶点格式的宏名称
g_pd3dDevice->DrawPrimitive(D3DPT_TRIANGLELIST, 0, 2); // 根据顶点缓存中的顶点来进行绘制
//---------------------------------------------------------------------------------------------------------------
//【Direct3D渲染步骤四】:结束绘制
//---------------------------------------------------------------------------------------------------------------
g_pd3dDevice->EndScene(); //结束绘制
//---------------------------------------------------------------------------------------------------------------
//【Direct3D渲染步骤五】:显示翻转
//---------------------------------------------------------------------------------------------------------------
g_pd3dDevice->Present(NULL, NULL, NULL, NULL); //翻转与显示
}
//------------------------------------------------【 Direct3D_ClearUp函数】------------------------------------------
//描述:资源清理函数,在此函数中进行程序退出前资源的清理工作
//-------------------------------------------------------------------------------------------------------------------
void Direct3D_ClearUp()
{
SAFE_RELEASE(g_pd3dDevice);
//释放COM接口对象
SAFE_RELEASE(g_pFont);
SAFE_RELEASE(g_pVertexBuffer);
}