لم يعمل البرنامج

#17 يناير 2009 في 15:32 صاحب الموضوع

اخوتي لا أعرف لماذا لم يعمل البرنامج التالي, وهو لرسم اسطوانة مفرغة, فقط كانت ترسم نصف الأسطوانة: علما بأن اعداد الأسطوانة كان في الدالة Setup()

انسخ الكود

[size="2"]#include "Utility.h"
IDirect3DDevice9* Device = 0;
const int Width = 640;
const int Height = 480;
const float h = 1.0f;
const float r = 1.0f;
const int N = 10;
IDirect3DVertexBuffer9* cylinder = 0;
struct Vertex
{
Vertex(){}
Vertex(float x, float y, float z, float nx, float ny, float nz)
{
_x = x;
_y = y;
_z = z;
_nx = nx;
_ny = ny;
_nz = nz;
}
float _x, _y, _z;
float _nx, _ny, _nz;
static const DWORD FVF;
};
const DWORD Vertex::FVF = D3DFVF_XYZ|D3DFVF_NORMAL;
bool Setup()
{
Device->CreateVertexBuffer(N*6*sizeof(Vertex) ,D3DUSAGE_WRITEONLY
, Vertex::FVF, D3DPOOL_MANAGED, &cylinder,0);
Vertex* v;
cylinder->Lock(0,0,(void**)&v, 0);
int i = 0;
float dt = 2.0f*D3DX_PI/N;
float eps = 0.001f;
for(float t = 0;t+eps<dt*N; t+=dt)
{
v[i+0] = Vertex(r*cos(t) , 0 , r*sin(t) , cos(t) , 0, sin(t));
v[i+1] = Vertex(r*cos(t+dt), h , r*sin(t+dt), cos(t+dt), 0, sin(t+dt));
v[i+2] = Vertex(r*cos(t+dt), 0 , r*sin(t+dt), cos(t+dt), 0, sin(t+dt));
v[i+3] = Vertex(r*cos(t) , 0 , r*sin(t) , cos(t) , 0, sin(t));
v[i+4] = Vertex(r*cos(t) , h , r*sin(t) , cos(t) , 0, sin(t));
v[i+5] = Vertex(r*cos(t+dt), h , r*sin(t+dt), cos(t+dt), 0, sin(t+dt));
i+=6;
}
cylinder->Unlock();
D3DXVECTOR3 position(0.0f, 5.0f, 0.0f);
D3DXVECTOR3 target(0.0f, 0.0f, 0.0f);
D3DXVECTOR3 up(0.0f, 0.0f, 1.0f);
D3DXMATRIX V;
D3DXMatrixLookAtLH(&V, &position, &target, &up);
Device->SetTransform(D3DTS_VIEW, &V);
D3DXMATRIX proj;
D3DXMatrixPerspectiveFovLH(
&proj,
D3DX_PI * 0.5f, // 90 - degree
(float)Width / (float)Height,
1.0f,
1000.0f);
Device->SetTransform(D3DTS_PROJECTION, &proj);
Device->SetMaterial(&d3d::WHITE_MTRL);
D3DXCOLOR c = d3d::YELLOW;
Device->SetLight(0, &d3d::InitDirectionalLight(&D3DXVECTOR3(1,0,0),&c));
Device->LightEnable(0, true);
Device->SetRenderState(D3DRS_NORMALIZENORMALS, true);
Device->SetRenderState(D3DRS_SPECULARENABLE, true);
Device->SetRenderState(D3DRS_FILLMODE,D3DFILL_WIREFRAME);
return true;
}
void Cleanup()
{
d3d::Release<IDirect3DVertexBuffer9*>(cylinder);
}
bool Display(float timeDelta)
{
if( Device )
{
//static float y = 0;
//D3DXMATRIX mat;
//D3DXMatrixTranslation(&mat,3*cos(y),0.0f, 3*sin(y));
//y += timeDelta;
//if(y>2*D3DX_PI)
// y = 0;
//Device->SetTransform(D3DTS_WORLD, &mat);
Device->Clear(0, 0, D3DCLEAR_TARGET | D3DCLEAR_ZBUFFER, 0xffffffff, 1.0f, 0);
Device->BeginScene();
Device->SetStreamSource(0, cylinder, 0, sizeof(Vertex));
Device->SetFVF(Vertex::FVF);
Device->DrawPrimitive(D3DPT_TRIANGLELIST, 0, N*2);
Device->EndScene();
Device->Present(0, 0, 0, 0);
}
return true;
}
LRESULT CALLBACK d3d::WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
switch( msg )
{
case WM_DESTROY:
::PostQuitMessage(0);
break;
case WM_KEYDOWN:
if( wParam == VK_ESCAPE )
::DestroyWindow(hwnd);
break;
}
return ::DefWindowProc(hwnd, msg, wParam, lParam);
}
int WINAPI WinMain(HINSTANCE hinstance,
HINSTANCE prevInstance,
PSTR cmdLine,
int showCmd)
{
if(!d3d::InitD3D(hinstance,
Width, Height, true, D3DDEVTYPE_HAL, &Device))
{
::MessageBox(0, L"InitD3D() - FAILED", 0, 0);
return 0;
}
if(!Setup())
{
::MessageBox(0, L"Setup() - FAILED", 0, 0);
return 0;
}
d3d::EnterMsgLoop( Display );
Cleanup();
Device->Release();
return 0;
}
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