??1
#include?
<
D3DX9.h
>
??2
#include?
<
string
>
??3
typedef?std::
string
?String;
??4
#define
?SAFE_RELEASE(o)?{if(o){o->Release();o?=?0;}}
??5
??6
??7
LPDIRECT3D9?g_pD3D?
=
?
0
;????????????????
//
?D3D?Driver
??8
LPDIRECT3DDEVICE9?g_pd3dDevice?
=
?
0
;????
//
?D3D?設(shè)備
??9
D3DCAPS9?g_Caps?
=
?
{(D3DDEVTYPE)
0
}
;????
//
?D3D?的帽子
?10
LPDIRECT3DVERTEXBUFFER9?g_pVB?
=
?
0
;????
//
?頂點(diǎn)緩沖區(qū)
?11
LPDIRECT3DINDEXBUFFER9?g_pIB?
=
?
0
;????
//
?索引緩沖區(qū)
?12
LPDIRECT3DTEXTURE9?g_pTexture?
=
?
0
;????
//
?貼圖
?13
?14
//
?頂點(diǎn)定義
?15
#define
?D3DFVF_CUSTOMVERTEX?(D3DFVF_XYZ?|?D3DFVF_DIFFUSE?|?D3DFVF_TEX1)
?16
struct
?CUSTOMVERTEX
?17
{
?18
 ????D3DXVECTOR3?position;
?19
????D3DCOLOR?color;
?20
????
float
?u?,?v;
?21
 }
;
?22
?23
//
?錯(cuò)誤記錄
?24
void
?D3DErr(String?strMsg)
?25
{
?26
????MessageBox(
0
?,?strMsg.c_str()?,?
"
錯(cuò)誤
"
?,?MB_OK);
?27
}
?28
?29
//
?初始化頂點(diǎn)緩沖區(qū)
?30
HRESULT?InitVB()
?31
{
?32
????
//
?創(chuàng)建頂點(diǎn)緩沖區(qū)
?33
????
if
(FAILED(g_pd3dDevice
->
CreateVertexBuffer(
4
?
*
?
sizeof
(CUSTOMVERTEX)?,?
0
?,?D3DFVF_CUSTOMVERTEX?,?D3DPOOL_DEFAULT?,?
&
g_pVB?,?
0
)))
?34
????????
return
?E_FAIL;
?35
?36
????CUSTOMVERTEX?
*
pVertecies;
?37
????
//
?鎖定緩沖區(qū)
?38
????
if
(SUCCEEDED(g_pVB
->
Lock(
0
?,?
0
?,?(
void
**
)
&
pVertecies?,?
0
)))
?39
 ????
{
?40
????????pVertecies[
0
].position?
=
?D3DXVECTOR3(
-
1
?,?
1
?,?
0
);
?41
????????pVertecies[
1
].position?
=
?D3DXVECTOR3(
-
1
?,?
-
1
?,?
0
);
?42
????????pVertecies[
2
].position?
=
?D3DXVECTOR3(
1
?,?
1
?,?
0
);
?43
????????pVertecies[
3
].position?
=
?D3DXVECTOR3(
1
?,?
-
1
?,?
0
);
?44
?45
????????pVertecies[
0
].u?
=
?
0
;
?46
????????pVertecies[
0
].v?
=
?
0
;
?47
?48
????????pVertecies[
1
].u?
=
?
0
;
?49
????????pVertecies[
1
].v?
=
?
1
;
?50
?51
????????pVertecies[
2
].u?
=
?
1
;
?52
????????pVertecies[
2
].v?
=
?
0
;
?53
?54
????????pVertecies[
3
].u?
=
?
1
;
?55
????????pVertecies[
3
].v?
=
?
1
;
?56
?57
????????pVertecies[
0
].color?
=
?
0xFFFFFFFF
;
?58
????????pVertecies[
1
].color?
=
?
0xFFFFFFFF
;
?59
????????pVertecies[
2
].color?
=
?
0xFFFFFFFF
;
?60
????????pVertecies[
3
].color?
=
?
0xFFFFFFFF
;
?61
????????g_pVB
->
Unlock();
?62
 ????}
?63
????
else
?64
????
{
?65
????????
return
?E_FAIL;
?66
????}
?67
?68
????
//
?載入紋理
?69
????
if
(FAILED(D3DXCreateTextureFromFile(g_pd3dDevice?,?
"
..\\..\\Media\\BRICE.JPG
"
?,?
&
g_pTexture)))
?70
????
{
?71
????????D3DErr(
"
無法載入紋理Brice.jpg
"
);
?72
????????
return
?E_FAIL;
?73
????}
?74
????
return
?S_OK;
?75
}
?76
?77
//
?初始化模型
?78
HRESULT?InitGeometry()
?79
{
?80
????
//
?創(chuàng)建頂點(diǎn)緩沖區(qū)
?81
????
if
(FAILED(InitVB()))
?82
????????
return
?E_FAIL;
?83
????
return
?S_OK;
?84
}
?85
?86
//
?設(shè)置矩陣變換
?87
void
?SetTransform()
?88
{
?89
?90
????
//
?世界變換
?91
????D3DXMATRIX?matWorld?,?matT1?,?matT2?,?matR;
?92
????D3DXMatrixIdentity(
&
matWorld);
?93
????
//
?設(shè)置世界矩陣
?94
????g_pd3dDevice
->
SetTransform(D3DTS_WORLD?,?
&
matWorld);
?95
????
//
?Set?up?our?view?matrix.?A?view?matrix?can?be?defined?given?an?eye?point,
?96
????
//
?a?point?to?lookat,?and?a?direction?for?which?way?is?up.?Here,?we?set?the
?97
????
//
?eye?five?units?back?along?the?z-axis?and?up?three?units,?look?at?the
?98
????
//
?origin,?and?define?"up"?to?be?in?the?y-direction.
?99
????
//
?視口變換
100
????D3DXMATRIX?matView;
101
????D3DXMatrixLookAtLH(
&
matView?,?
&
D3DXVECTOR3(
0
?,?
0
?,?
-
5
)
102
????????,?
&
D3DXVECTOR3(
0
?,?
0
?,?
0
)?
103
????????,?
&
D3DXVECTOR3(
0
?,?
1
?,?
0
));
104
????g_pd3dDevice
->
SetTransform(D3DTS_VIEW?,?
&
matView);
105
????
//
?For?the?projection?matrix,?we?set?up?a?perspective?transform?(which
106
????
//
?transforms?geometry?from?3D?view?space?to?2D?viewport?space,?with
107
????
//
?a?perspective?divide?making?objects?smaller?in?the?distance).?To?build
108
????
//
?a?perpsective?transform,?we?need?the?field?of?view?(1/4?pi?is?common),
109
????
//
?the?aspect?ratio,?and?the?near?and?far?clipping?planes?(which?define?at
110
????
//
?what?distances?geometry?should?be?no?longer?be?rendered).
111
????D3DXMATRIXA16?matProj;
112
????
//
?這里我曾經(jīng)犯了個(gè)大錯(cuò)！！把ZNear的參數(shù)傳0進(jìn)去了！這樣會導(dǎo)致一個(gè)很嚴(yán)重的問題。。你試試就知道。但是我想不通為何會出現(xiàn)這個(gè)問題。。我笨啊
113
????D3DXMatrixPerspectiveFovLH(?
&
matProj,?D3DX_PI
/
4
,?
1.0f
,?
1.0f
,?
100.0f
?);
114
????g_pd3dDevice
->
SetTransform(?D3DTS_PROJECTION,?
&
matProj?);
115
116
????
//
?紋理坐標(biāo)平移
117
????D3DXMATRIXA16?matTexture;
118
????D3DXMatrixIdentity(
&
matTexture);
119
????
//
?要使用3*3矩陣來平移2D紋理，所以要設(shè)置31來平移。不懂為什么要設(shè)置31的話看看《計(jì)算機(jī)圖形學(xué)》的2D變換那章
120
????matTexture._31?
=
?timeGetTime()?
%
?
3000
?
/
?
1500.0f
;
121
????g_pd3dDevice
->
SetTransform(D3DTS_TEXTURE0?,?
&
matTexture);
122
123
}
124
125
//
?渲染場景
126
void
?Render()
127
{
128
????
if
(g_pd3dDevice)
129
????
{
130
????????
//
?清空場景
131
????????g_pd3dDevice
->
Clear(
0
?,?
0
?,?D3DCLEAR_TARGET?
|
?D3DCLEAR_ZBUFFER?,?D3DCOLOR_XRGB(
0
?,?
0
?,?
0
)?,?
1
?,?
0
);
132
????????
//
?開始渲染
133
????????
if
(SUCCEEDED(g_pd3dDevice
->
BeginScene()))
134
????????
{
135
????????????SetTransform();
136
????????????g_pd3dDevice
->
SetTexture(
0
?,?g_pTexture);
137
????????????
//
?要想用矩陣來平移2D紋理，必須設(shè)置D3DTSS_TEXTURETRANSFORMFLAGS成D3DTTFF_COUNT2
138
????????????g_pd3dDevice
->
SetTextureStageState(
0
,?D3DTSS_TEXTURETRANSFORMFLAGS,?D3DTTFF_COUNT2);
139
????????????
//
?這句在這里可有可無
140
????????????g_pd3dDevice
->
SetTextureStageState(
0
,?D3DTSS_TEXCOORDINDEX,?
0
);
141
????????????
142
????????????g_pd3dDevice
->
SetSamplerState(
0
?,?D3DSAMP_ADDRESSU?,?D3DTADDRESS_MIRROR);
143
????????????g_pd3dDevice
->
SetSamplerState(
0
?,?D3DSAMP_ADDRESSV?,?D3DTADDRESS_MIRROR);
144
????????????g_pd3dDevice
->
SetRenderState(D3DRS_LIGHTING?,?FALSE);
145
????????????
//
g_pd3dDevice->SetRenderState(D3DRS_FILLMODE?,?D3DFILL_WIREFRAME);
146
????????????g_pd3dDevice
->
SetStreamSource(
0
?,?g_pVB?,?
0
?,?
sizeof
(CUSTOMVERTEX));
147
????????????g_pd3dDevice
->
SetFVF(D3DFVF_CUSTOMVERTEX);
148
????????????g_pd3dDevice
->
DrawPrimitive(D3DPT_TRIANGLESTRIP?,?
0
?,?
2
);
149
????????????g_pd3dDevice
->
EndScene();
150
????????}
151
????????
//
?顯示
152
????????g_pd3dDevice
->
Present(
0
?,?
0
?,?
0
?,?
0
);
153
????}
154
}
155
156
//
?初始化?D3D?設(shè)備
157
HRESULT?InitD3D(HWND?hWnd)
158
{
159
????
//
?創(chuàng)建?D3D?Driver
160
????
if
(NULL?
==
?(g_pD3D?
=
?Direct3DCreate9(D3D_SDK_VERSION)))
161
????
{
162
????????D3DErr(
"
無法創(chuàng)建Direct3D9設(shè)備
"
);
163
????????
return
?E_FAIL;
164
????}
165
????
//
?獲取當(dāng)前顯示模式
166
????D3DDISPLAYMODE?d3ddm;
167
????
if
(FAILED(g_pD3D
->
GetAdapterDisplayMode(D3DADAPTER_DEFAULT?,?
&
d3ddm)))
168
????
{
169
????????D3DErr(
"
無法獲取D3D顯示器模式
"
);
170
????????
return
?E_FAIL;
171
????}
172
173
????
//
?獲取窗口的大小
174
????RECT?rect;
175
????GetClientRect(hWnd?,?
&
rect);
176
177
????
//
?填充參數(shù)
178
????D3DPRESENT_PARAMETERS?d3dpp;
179
????memset(
&
d3dpp?,?
0
?,?
sizeof
(d3dpp));
180
????d3dpp.BackBufferFormat?
=
?d3ddm.Format;
181
????d3dpp.BackBufferWidth?
=
?rect.right?
-
?rect.left;
182
????d3dpp.BackBufferHeight?
=
?rect.bottom?
-
?rect.top;
183
????d3dpp.SwapEffect?
=
?D3DSWAPEFFECT_DISCARD;
184
????d3dpp.Windowed?
=
?
true
;
185
????d3dpp.AutoDepthStencilFormat?
=
?D3DFMT_D16;
186
????d3dpp.EnableAutoDepthStencil?
=
?TRUE;
187
188
????
//
?獲取帽子
189
????
if
(FAILED(g_pD3D
->
GetDeviceCaps(D3DADAPTER_DEFAULT?,?D3DDEVTYPE_HAL?,?
&
g_Caps)))
190
????
{
191
????????D3DErr(
"
獲取D3D?帽子時(shí)發(fā)生錯(cuò)誤
"
);
192
????????
return
?E_FAIL;
193
????}
194
195
????
//
?創(chuàng)建D3D設(shè)備
196
????
if
(FAILED(g_pD3D
->
CreateDevice(D3DADAPTER_DEFAULT
197
????????,?D3DDEVTYPE_HAL
198
????????,?hWnd
199
????????
//
?檢查是否支持硬件頂點(diǎn)處理
200
????????,?g_Caps.DevCaps?
&
?D3DDEVCAPS_HWTRANSFORMANDLIGHT?
?
?D3DCREATE_HARDWARE_VERTEXPROCESSING?:?D3DCREATE_SOFTWARE_VERTEXPROCESSING
201
????????,?
&
d3dpp
202
????????,?
&
g_pd3dDevice
203
????????)
204
????????))
205
????
{
206
????????D3DErr(
"
創(chuàng)建D3D設(shè)備時(shí)發(fā)生錯(cuò)誤
"
);
207
????????
return
?E_FAIL;
208
????}
209
????g_pd3dDevice
->
SetRenderState(?D3DRS_CULLMODE,?D3DCULL_NONE?);
210
????g_pd3dDevice
->
SetRenderState(?D3DRS_ZENABLE,?TRUE?);
211
212
????
if
(FAILED(InitGeometry()))
213
????????
return
?E_FAIL;
214
????
return
?S_OK;
215
}
216
217
//
?清空所有占用的資源
218
void
?CleanUp()
219
{
220
????SAFE_RELEASE(g_pTexture);
221
????SAFE_RELEASE(g_pIB);
222
????SAFE_RELEASE(g_pVB);
223
????SAFE_RELEASE(g_pd3dDevice);
224
????SAFE_RELEASE(g_pD3D);
225
}
226
227
228
//
?消息處理
229
LRESULT?WINAPI?MsgProc(HWND?hWnd?,?UINT?message?,?WPARAM?wParam?,?LPARAM?lParam)
230
{
231
????
switch
(message)
232
????
{
233
????
case
?WM_DESTROY:
234
????????CleanUp();
235
????????PostQuitMessage(
0
);
236
????????
break
;
237
????}
238
????
return
?::DefWindowProc(hWnd,?message?,?wParam?,?lParam);
239
}
240
241
//
?Windows?入口
242
int
?WINAPI?WinMain(IN?HINSTANCE?hInstance,?IN?HINSTANCE?hPrevInstance,?IN?LPSTR?lpCmdLine,?IN?
int
?nShowCmd?)
243
{
244
????WNDCLASS?wndClass;
245
????memset(
&
wndClass?,?
0
?,?
sizeof
(wndClass));
246
????wndClass.hInstance?
=
?hInstance;
247
????wndClass.lpszClassName?
=
?
"
Tutorial02
"
;
248
????wndClass.lpfnWndProc?
=
?MsgProc;
249
????RegisterClass(
&
wndClass);
250
251
????
//
?創(chuàng)建窗口
252
????HWND?hWnd?
=
?CreateWindow(
"
Tutorial02
"
?,?
"
Tutorial02?Texture?Scrolling
"
?
253
????????,?WS_OVERLAPPEDWINDOW?,?
0
?,?
0
?,?
512
?,
512
?,?GetDesktopWindow()
254
????????,?
0
?,?wndClass.hInstance?,?
0
);
255
????
//
?顯示窗口
256
????ShowWindow(hWnd?,?SW_SHOWDEFAULT);
257
????UpdateWindow(hWnd);
258
259
????
//
?初始化?D3D?設(shè)備
260
????
if
(SUCCEEDED(InitD3D(hWnd)))
261
????
{
262
????????
//
?消息處理循環(huán)
263
????????MSG?msg;
264
????????memset(
&
msg?,?
0
?,?
sizeof
(msg));
265
????????
while
(msg.message?
!=
?WM_QUIT)
266
????????
{
267
????????????
if
(PeekMessage(
&
msg?,?
0
?,?
0
?,?
0
?,?PM_REMOVE))
268
????????????
{
269
????????????????TranslateMessage(
&
msg);
270
????????????????DispatchMessage(
&
msg);
271
????????????}
272
????????????
else
273
????????????
{
274
????????????????Render();
275
????????????}
276
????????}
277
????}
278
????
//
?清空場景
279
????CleanUp();
280
281
????UnregisterClass(
"
Tutorial02
"
?,?wndClass.hInstance);
282
283
????
return
?
0
;
284
}
|