关于direct3D 显示三角图形问题~~~跪求大师解决~

[无魂冬冬]

求大神们帮我看看为啥就是不出那三角形~自己硬伤调试了一天没找出原因~我用的是VS2012；编译通过，没有提示错误~~~
代码有点长，有点乱~；劳烦各位牛b前辈费心~帮我解惑~
-------------------------------------------------------------------------------------

/////MyDirect3d.h
#pragma once
//
// Our custom FVF, which describes our custom vertex structure.  
#define D3DFVF_VERTEX (D3DFVF_XYZRHW | D3DFVF_DIFFUSE) 

class CMyDirect3d
{
public:
//
private:
	//
	HRESULT	hr;
	HWND	d3dhwnd;
	bool	d3dfullscreen;
	//
	D3DDISPLAYMODE	displayMode;
	LPDIRECT3D9 d3d	;
	LPDIRECT3DDEVICE9	d3dDevice;
	D3DPRESENT_PARAMETERS	d3dpp;

	//
	LPDIRECT3DVERTEXBUFFER9 vertexBuffer;
	D3DXMATRIX World;
	struct stD3DVertex
	{
		float x, y, z,rhw;
		DWORD color;
	};
//
public:
	CMyDirect3d(void);
	~CMyDirect3d(void);
	CMyDirect3d(HWND hwnd, bool fullscreen);
//
	bool Initialize();
	bool RenderScreen();
	bool InitializeObjects();

};

-----------------------------------------------------------------------------------

////MyDirect3d.cpp
#include "stdafx.h"
#include "MyDirect3d.h"


CMyDirect3d::CMyDirect3d(void)
{
}

CMyDirect3d::CMyDirect3d(HWND hwnd, bool fullscreen)
{
	d3dhwnd = hwnd;
	d3dfullscreen = fullscreen;
}

CMyDirect3d::~CMyDirect3d(void)
{
	if(d3dDevice != NULL) d3dDevice->Release();  
	if(d3d != NULL) d3d->Release();  
	if(vertexBuffer != NULL) vertexBuffer->Release();

	//
	d3dDevice = NULL;  
	d3d = NULL; 
	vertexBuffer = NULL;
	//MessageBox(NULL, TEXT("hfaf"), TEXT("he"), 0);
}
//////////////////////////////////////////////////////////////////////////
bool CMyDirect3d::Initialize()
{
	// Create the D3D object.
	d3d = Direct3DCreate9(D3D_SDK_VERSION);

	if (d3d == NULL)
	{
		return false;
	}
	// Get the desktop display mode. 
	if (FAILED(d3d->GetAdapterDisplayMode(D3DADAPTER_DEFAULT, &displayMode)))
	{
		return false;
	}
	// Set up the structure used to create the D3Device
	ZeroMemory(&d3dpp, sizeof(d3dpp));
	if (d3dfullscreen)
	{
		d3dpp.Windowed         = FALSE;
		d3dpp.BackBufferWidth  = 640;
		d3dpp.BackBufferHeight = 480;
	}
	else
		d3dpp.Windowed	= TRUE;
	d3dpp.SwapEffect       = D3DSWAPEFFECT_DISCARD;
	d3dpp.BackBufferFormat = displayMode.Format;
	hr = d3d->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, d3dhwnd, 
							D3DCREATE_HARDWARE_VERTEXPROCESSING, &d3dpp, &d3dDevice);
	if (FAILED(hr))
	{
		DXTRACE_ERR_MSGBOX(DXGetErrorStringW(hr),hr);
		return false;
	}
	//
	if (!InitializeObjects())
	{
		return false;
	}
	return true;
}//end Initialize
bool CMyDirect3d::InitializeObjects()
{
	//ColorVertex t;
	// Create the vertex buffer.
	hr = d3dDevice->CreateVertexBuffer(sizeof(stD3DVertex), 0, D3DFVF_VERTEX, D3DPOOL_DEFAULT, 
										&vertexBuffer, NULL);
	if (FAILED(hr))
	{
		DXTRACE_ERR_MSGBOX(DXGetErrorStringW(hr),hr);
		return false;
	}
	//
	stD3DVertex triangle[]=
	{
		420.0f,150.0f,0.5f,1.0f,D3DCOLOR_XRGB(255,0,0),
		420.0f,350.0f,0.5f,1.0f,D3DCOLOR_XRGB(0,255,0),
		300.0f,350.0f,0.5f,1.0f,D3DCOLOR_XRGB(0,0,255),
	};
	// Fill the vertex buffer
	void* p;
	hr = vertexBuffer->Lock(0, sizeof(stD3DVertex), (void**)&p, 0);
	if (FAILED(hr))
	{
		DXTRACE_ERR_MSGBOX(DXGetErrorStringW(hr),hr);
		return false;
	}
	memcpy(p, triangle, sizeof(stD3DVertex));
	vertexBuffer->Unlock();
	//
	//D3DXMATRIX proj;
	//D3DXMatrixPerspectiveFovLH(&proj, D3DX_PI*0.5f, 1.3333f, 1.0f, 1000.0f);
	//d3dDevice->SetTransform(D3DTS_PROJECTION, &proj);
	//d3dDevice->SetRenderState(D3DRS_LIGHTING, false);
	//
	return true;
}
//
bool CMyDirect3d::RenderScreen()
{
	// Clear the back-buffer
	hr = d3dDevice->Clear(0, NULL, D3DCLEAR_TARGET, 
					D3DCOLOR_XRGB(0, 0, 0), 1.0f, 0);
	if (FAILED(hr))
	{
		DXTRACE_ERR_MSGBOX(DXGetErrorStringW(hr),hr);
		return false;
	}
	// Begin the screen start rendering
	d3dDevice->BeginScene();
		//Render objDate
		hr = d3dDevice->SetStreamSource(0, vertexBuffer, 0, sizeof(stD3DVertex));
		if (FAILED(hr))
		{
			DXTRACE_ERR_MSGBOX(DXGetErrorStringW(hr),hr);
			return false;
		}
		hr = d3dDevice->SetFVF(D3DFVF_VERTEX);
		if (FAILED(hr))
		{
			DXTRACE_ERR_MSGBOX(DXGetErrorStringW(hr),hr);
			return false;
		}
		//D3DXMatrixTranslation(&World, -1.25f, 0.0f, 0.0f);
		//hr = d3dDevice->SetTransform(D3DTS_WORLD, &World);
		if (FAILED(hr))
		{
			DXTRACE_ERR_MSGBOX(DXGetErrorStringW(hr),hr);
			return false;
		}
		//hr = d3dDevice->SetRenderState(D3DRS_SHADEMODE, D3DSHADE_FLAT);
		if (FAILED(hr))
		{
			DXTRACE_ERR_MSGBOX(DXGetErrorStringW(hr),hr);
			return false;
		}
		hr = d3dDevice->DrawPrimitive(D3DPT_TRIANGLELIST, 0, 1);
		if (FAILED(hr))
		{
			DXTRACE_ERR_MSGBOX(DXGetErrorStringW(hr),hr);
			return false;
		}
	// End the screen stop rendering
	d3dDevice->EndScene();
	// Display the screen.
	d3dDevice->Present(NULL, NULL, NULL, NULL);

	return true;
}

-----------------------------------------------------------------------------------

//DrawTringle.h
#pragma once

#include "resource.h"

-----------------------------------------------------------------------------------

// DrawTriangle.cpp : 定义应用程序的入口点。
//

#include "stdafx.h"
#include "DrawTriangle.h"
#include "MyDirect3d.h"

#define MAX_LOADSTRING 100

// 全局变量:
HINSTANCE hInst;								// 当前实例
TCHAR szTitle[MAX_LOADSTRING];					// 标题栏文本
TCHAR szWindowClass[MAX_LOADSTRING];			// 主窗口类名
CMyDirect3d*	pmyd3d;

// 此代码模块中包含的函数的前向声明:
ATOM				MyRegisterClass(HINSTANCE hInstance);
BOOL				InitInstance(HINSTANCE, int);
LRESULT CALLBACK	WndProc(HWND, UINT, WPARAM, LPARAM);
INT_PTR CALLBACK	About(HWND, UINT, WPARAM, LPARAM);

int APIENTRY _tWinMain(_In_ HINSTANCE hInstance,
					 _In_opt_ HINSTANCE hPrevInstance,
					 _In_ LPTSTR    lpCmdLine,
					 _In_ int       nCmdShow)
{
	UNREFERENCED_PARAMETER(hPrevInstance);
	UNREFERENCED_PARAMETER(lpCmdLine);

	// TODO: 在此放置代码。
	MSG msg;
	HACCEL hAccelTable;
	ZeroMemory(&msg, sizeof(msg));
	// 初始化全局字符串
	LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
	LoadString(hInstance, IDC_DRAWTRIANGLE, szWindowClass, MAX_LOADSTRING);
	MyRegisterClass(hInstance);

	// 执行应用程序初始化:
	if (!InitInstance (hInstance, nCmdShow))
	{
		return FALSE;
	}

	hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_DRAWTRIANGLE));

	// 主消息循环:
	while (GetMessage(&msg, NULL, 0, 0))
	{
		if (PeekMessage(&msg, 0, 0, 0, PM_REMOVE))
		{
			TranslateMessage(&msg);
			DispatchMessage(&msg);
		}
		else
		{
			pmyd3d->RenderScreen();
		}
	}
	delete pmyd3d;

	return (int) msg.wParam;
}



//
//  函数: MyRegisterClass()
//
//  目的: 注册窗口类。
//
ATOM MyRegisterClass(HINSTANCE hInstance)
{
	WNDCLASSEX wcex;

	wcex.cbSize = sizeof(WNDCLASSEX);

	wcex.style			= CS_HREDRAW | CS_VREDRAW;
	wcex.lpfnWndProc	= WndProc;
	wcex.cbClsExtra		= 0;
	wcex.cbWndExtra		= 0;
	wcex.hInstance		= hInstance;
	wcex.hIcon			= LoadIcon(hInstance, MAKEINTRESOURCE(IDI_DRAWTRIANGLE));
	wcex.hCursor		= LoadCursor(NULL, IDC_ARROW);
	wcex.hbrBackground	= NULL;
	wcex.lpszMenuName	= MAKEINTRESOURCE(IDC_DRAWTRIANGLE);
	wcex.lpszClassName	= szWindowClass;
	wcex.hIconSm		= LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL));

	return RegisterClassEx(&wcex);
}

//
//   函数: InitInstance(HINSTANCE, int)
//
//   目的: 保存实例句柄并创建主窗口
//
//   注释:
//
//        在此函数中，我们在全局变量中保存实例句柄并
//        创建和显示主程序窗口。
//
BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
{
   HWND hWnd;

   hInst = hInstance; // 将实例句柄存储在全局变量中

   hWnd = CreateWindow(szWindowClass, szTitle, WS_OVERLAPPEDWINDOW,
	  CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, GetDesktopWindow(), NULL, hInstance, NULL);

   if (!hWnd)
   {
	  return FALSE;
   }
   pmyd3d = new CMyDirect3d(hWnd, false);
   if (!pmyd3d->Initialize())
   {
	   MessageBox(NULL, TEXT("ha"), TEXT("CMyDirect3d::Initialize is false"), 0);
   }
   ShowWindow(hWnd, nCmdShow);
   UpdateWindow(hWnd);

   return TRUE;
}

//
//  函数: WndProc(HWND, UINT, WPARAM, LPARAM)
//
//  目的: 处理主窗口的消息。
//
//  WM_COMMAND	- 处理应用程序菜单
//  WM_PAINT	- 绘制主窗口
//  WM_DESTROY	- 发送退出消息并返回
//
//
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
	int wmId, wmEvent;
	PAINTSTRUCT ps;
	HDC hdc;

	switch (message)
	{
	case WM_COMMAND:
		wmId    = LOWORD(wParam);
		wmEvent = HIWORD(wParam);
		// 分析菜单选择:
		switch (wmId)
		{
		case IDM_ABOUT:
			DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About);
			break;
		case IDM_EXIT:
			DestroyWindow(hWnd);
			break;
		default:
			return DefWindowProc(hWnd, message, wParam, lParam);
		}
		break;

	case WM_DESTROY:
		PostQuitMessage(0);
		return 0;
		break;
	default:
		return DefWindowProc(hWnd, message, wParam, lParam);
	}
	return 0;
}

// “关于”框的消息处理程序。
INT_PTR CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
	UNREFERENCED_PARAMETER(lParam);
	switch (message)
	{
	case WM_INITDIALOG:
		return (INT_PTR)TRUE;

	case WM_COMMAND:
		if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL)
		{
			EndDialog(hDlg, LOWORD(wParam));
			return (INT_PTR)TRUE;
		}
		break;
	}
	return (INT_PTR)FALSE;
}

-----------------------------------------------------------------------------------

// stdafx.h : 标准系统包含文件的包含文件，
// 或是经常使用但不常更改的
// 特定于项目的包含文件
//

#pragma once

#include "targetver.h"

#define WIN32_LEAN_AND_MEAN             //  从 Windows 头文件中排除极少使用的信息
// Windows 头文件:
#include <windows.h>

// C 运行时头文件
#include <stdlib.h>
#include <malloc.h>
#include <memory.h>
#include <tchar.h>


// TODO: 在此处引用程序需要的其他头文件
#include <d3d9.h>
#include <DxErr.h>
#include <d3dx9math.h>

----------------------------------------------------------------------------------
这里真诚拜谢各位~

[无魂冬冬]

drawText下把。当打印调试信息。。看看是不是你初始化的环境问题还是你搞的顶点缓存有问题。。 http://blog.csdn.net/poem_qianmo/article/details/8276363 可以看看浅墨的blog [/quote]谢谢、给我的建议~感谢

[无魂冬冬]

感谢shb8845369大哥为我解惑·~、我知道哪里错了、确实是这得问题

//这里也错了，传进去的是三个点的数据，而不是一个点的数据！！！所以用triangle才对
    hr = d3dDevice->CreateVertexBuffer(sizeof(triangle)/*stD3DVertex*/, 0, D3DFVF_VERTEX, D3DPOOL_DEFAULT, 
                                        &vertexBuffer, NULL);

、 不过我还是试了下 把stD3DVertex triangle[]定义在 CreateVertexBuffer后面、还是能行的

	// Create the vertex buffer.
	hr = d3dDevice->CreateVertexBuffer(3*sizeof(stD3DVertex), 0, D3DFVF_VERTEX, D3DPOOL_DEFAULT, 
										&vertexBuffer, NULL);
	if (FAILED(hr))
	{
		DXTRACE_ERR_MSGBOX(DXGetErrorStringW(hr),hr);
		return false;
	}
	//
	stD3DVertex triangle[]=
	{
		420.0f,150.0f,0.5f,1.0f,D3DCOLOR_XRGB(255,0,0),
		420.0f,350.0f,0.5f,1.0f,D3DCOLOR_XRGB(0,255,0),
		300.0f,350.0f,0.5f,1.0f,D3DCOLOR_XRGB(0,0,255),
	};
	// Fill the vertex buffer
	void* p;
	hr = vertexBuffer->Lock(0, sizeof(triangle), (void**)&p, 0);
	if (FAILED(hr))
	{
		DXTRACE_ERR_MSGBOX(DXGetErrorStringW(hr),hr);
		return false;
	}
	memcpy(p, triangle, sizeof(triangle));
	vertexBuffer->Unlock();
	//

[狂风暴雨]

没有转换坐标，投影到屏幕上所以看不到。

[狂风暴雨]

引用 1 楼 kfbyj 的回复:

没有转换坐标，投影到屏幕上所以看不到。

好吧。。我看错了。。你这用不到转换投影。。 drawText下把。当打印调试信息。。看看是不是你初始化的环境问题还是你搞的顶点缓存有问题。。 http://blog.csdn.net/poem_qianmo/article/details/8276363 可以看看浅墨的blog

[昆仑道长]

查了我半个多小时，主要有以下两个错误:
1、在DrawTriangle.cpp文件中，将
while(GetMessage(&msg, NULL, 0, 0))改为(msg.message != WM_QUIT)，要不然程序都没法正常退出。
2、在MyDirect3d.cpp文件中，InitializeObjects()函数中，triangle[]的声明必须在CreateVertexBuffer()之前而不是在之后，而且你传进去去的是stD3DVertex参数也是错误的，正确代码如下:

bool CMyDirect3d::InitializeObjects()
{
	//ColorVertex t;
	// Create the vertex buffer.

        //这里错了！应该先声明triangle再调用CreateVertexBuffer()函数！
        stD3DVertex triangle[]=
	{
            420.0f,150.0f,0.5f,1.0f,D3DCOLOR_XRGB(255,0,0),
            420.0f,350.0f,0.5f,1.0f,D3DCOLOR_XRGB(0,255,0),
            300.0f,350.0f,0.5f,1.0f,D3DCOLOR_XRGB(0,0,255),
	};
        //这里也错了，传进去的是三个点的数据，而不是一个点的数据！！！所以用triangle才对
	hr = d3dDevice->CreateVertexBuffer(sizeof(triangle)/*stD3DVertex*/, 0, D3DFVF_VERTEX, D3DPOOL_DEFAULT, 
										&vertexBuffer, NULL);
	if (FAILED(hr))
	{
		DXTRACE_ERR_MSGBOX(DXGetErrorStringW(hr),hr);
		return false;
	}
	//

	// Fill the vertex buffer
	VOID* p;
        //这里是同样的错误！！！
	hr = vertexBuffer->Lock(0, sizeof(triangle)/*stD3DVertex*/, (void**)&p, 0);
	if (FAILED(hr))
	{
		DXTRACE_ERR_MSGBOX(DXGetErrorStringW(hr),hr);
		return false;
	}
	memcpy(p, triangle, sizeof(triangle)/*stD3DVertex)*/);
	vertexBuffer->Unlock();
	//
	//D3DXMATRIX proj;
	//D3DXMatrixPerspectiveFovLH(&proj, D3DX_PI*0.5f, 1.3333f, 1.0f, 1000.0f);
	//d3dDevice->SetTransform(D3DTS_PROJECTION, &proj);
	//d3dDevice->SetRenderState(D3DRS_LIGHTING, false);
	//
	return true;
}

修改后的运行结果如下: