D3D太阳系(轨道自转公转)

#include "DrawRound.h" ////////////////////////////////////////////////////////////////////// // Construction/Destruction ////////////////////////////////////////////////////////////////////// CDrawRound::CDrawRound(LPDIRECT3DDEVICE9 pD3DDevice) { m_pd3dDevice = pD3DDevice; m_Sun = InitVB(pD3DDevice, 3.0f, 30, 30); m_Mercury = InitVB(pD3DDevice,0.38f,20,20); m_Venus = InitVB(pD3DDevice,0.95f,20,20); m_Moon = InitVB(pD3DDevice,0.2f,20,20); m_Earth = InitVB(pD3DDevice,1.0f,20,20); m_Mars = InitVB(pD3DDevice,0.53f,20,20); m_Jupiter= InitVB(pD3DDevice,1.3f,20,20); m_Saturn= InitVB(pD3DDevice,1.2f,20,20); m_Uranus= InitVB(pD3DDevice,1.1f,20,20); m_Neptune= InitVB(pD3DDevice,1.05f,20,20); } #define FVF_VERTEX D3DFVF_XYZ|D3DFVF_NORMAL|D3DFVF_TEX1 CDrawRound::~CDrawRound() { m_Sun ->Release(); m_Earth ->Release(); m_Moon ->Release(); m_Sun = NULL; m_Earth = NULL; m_Moon = NULL; } LPD3DXMESH CDrawRound::InitVB(LPDIRECT3DDEVICE9 pd3dDevice, float fRad, UINT slices,UINT stacks) { //D3DXCreateSphere(m_pD3dDevice,0.5f,50,50,&mesh,NULL); CUSTOMVERTEX g_Vertices[37] ; float r=5; for(int i=0;i<37;i++) { float x = r*cos(i*10*3.14/180); float z = r*sin(i*10*3.14/180); g_Vertices[i].x=x; g_Vertices[i].z=z; g_Vertices[i].y=0.0f; g_Vertices[i].color=D3DCOLOR_XRGB(0,255,255); } if(FAILED(m_pd3dDevice->CreateVertexBuffer(sizeof(g_Vertices) ,0 ,D3DFVF_CUSTOMVETEX ,D3DPOOL_MANAGED ,&m_pBufferRec ,NULL))) { return NULL; } VOID* pVertices; if(FAILED(m_pBufferRec->Lock(0, sizeof(g_Vertices),(void**)&pVertices, 0))) { return NULL; } memcpy(pVertices,g_Vertices,sizeof(g_Vertices)); m_pBufferRec->Unlock(); LPD3DXMESH mesh; if (FAILED(D3DXCreateSphere(pd3dDevice, fRad, slices, stacks,&mesh,NULL))) return NULL; // create a copy of the mesh with texture coordinates, // since the D3DX function doesn't include them LPD3DXMESH texMesh; if (FAILED(mesh->CloneMeshFVF(D3DXMESH_SYSTEMMEM,FVF_VERTEX,m_pd3dDevice,&texMesh))) // failed, return un-textured mesh return mesh; // finished with the original mesh, release it mesh->Release(); // lock the vertex buffer LPVERTEX pVerts; if (SUCCEEDED(texMesh->LockVertexBuffer(0,(LPVOID*) &pVerts))) { // get vertex count int numVerts = texMesh->GetNumVertices(); // loop through the vertices for (int i=0;i<numVerts;i++) { // calculate texture coordinates pVerts->tu=asinf(pVerts->norm.x)/D3DX_PI+0.5f; pVerts->tv=asinf(pVerts->norm.y)/D3DX_PI+0.5f; // go to next vertex pVerts++; } // unlock the vertex buffer texMesh->UnlockVertexBuffer(); } // return pointer to caller return texMesh; return S_OK; } void CDrawRound::Render() { m_pd3dDevice ->SetRenderState(D3DRS_LIGHTING,false); m_pd3dDevice ->SetRenderState(D3DRS_CULLMODE, D3DCULL_NONE); D3DXMATRIX matWorld,mScale; /*太阳*/ D3DXMATRIX m_SunWorld; D3DXMATRIX m_suntrans;//平移矩阵 D3DXMATRIX mSunRotationself;//自转矩阵 D3DXMatrixTranslation(&m_suntrans,0,0,0);//返回的是平移矩阵，由于为零，所以这里太阳的世界坐标相当于没变 D3DXMatrixIdentity(&m_SunWorld); D3DXMatrixTranslation(&m_suntrans,0,0,0);//平移 D3DXMatrixRotationY(&m_SunWorld,timeGetTime()/5000.0f);//太阳自转 D3DXMatrixMultiply(&m_SunWorld,&m_suntrans,&m_SunWorld );//m_SunWorld=mSunRotationself*m_SunWorld平移变换得到太阳的世界坐标; m_pd3dDevice->SetTransform(D3DTS_WORLD,&m_SunWorld); //m_pd3dDevice->SetMaterial(&Yellowmtrl); m_pd3dDevice ->SetTexture(0,m_pTexture[0]); m_Sun->DrawSubset(0); /***********/ /*(水星)Mercury*/ D3DXMATRIX m_MercuryWorld,m_MercuryRound; D3DXMATRIX m_mercurytrans;//平移矩阵 D3DXMATRIX m_mercuryRotationself;//自转矩阵 D3DXMATRIX m_mercuryRotationpublic;//公转矩阵 D3DXMatrixTranslation(&m_mercurytrans,5,0,0);//平移 D3DXMatrixRotationY(&m_mercuryRotationself,timeGetTime()/1000.0f);//水星自转 D3DXMatrixRotationY(&m_mercuryRotationpublic,timeGetTime()/3000.0f);//水星公转 D3DXMatrixMultiply(&m_MercuryWorld,&m_mercuryRotationself,&(m_mercurytrans*m_mercuryRotationpublic) ); D3DXMatrixMultiply(&m_MercuryWorld,&m_MercuryWorld,&m_SunWorld ); m_pd3dDevice->SetTransform(D3DTS_WORLD,&m_MercuryWorld); m_pd3dDevice ->SetTexture(0,m_pTexture[1]); m_Mercury->DrawSubset(0); m_pd3dDevice->SetStreamSource(0, m_pBufferRec,0,sizeof(CUSTOMVERTEX)); m_pd3dDevice->SetFVF(D3DFVF_CUSTOMVETEX); D3DXMatrixTranslation(&m_MercuryRound, 0, 0, 0); m_pd3dDevice->SetTransform(D3DTS_WORLD, &m_MercuryRound); m_pd3dDevice->DrawPrimitive( D3DPT_LINESTRIP ,0,36);//轨迹 /***********/ /*(金星)Venus*/ D3DXMATRIX m_VenusWorld,m_VenusRound; D3DXMATRIX m_venustrans;//平移矩阵 D3DXMATRIX m_venusRotationself;//自转矩阵 D3DXMATRIX m_venusRotationpublic;//公转矩阵 D3DXMatrixTranslation(&m_venustrans,-7,0,0);//平移 D3DXMatrixRotationY(&m_venusRotationself,timeGetTime()/1000.0f);//金星自转 D3DXMatrixRotationY(&m_venusRotationpublic,timeGetTime()/4000.0f);//金星公转 D3DXMatrixMultiply(&m_VenusWorld,&m_venusRotationself,&(m_venustrans*m_venusRotationpublic) ); D3DXMatrixMultiply(&m_VenusWorld,&m_VenusWorld,&m_SunWorld ); m_pd3dDevice->SetTransform(D3DTS_WORLD,&m_VenusWorld); m_pd3dDevice ->SetTexture(0,m_pTexture[2]); m_Venus->DrawSubset(0); m_pd3dDevice->SetStreamSource(0, m_pBufferRec,0,sizeof(CUSTOMVERTEX)); m_pd3dDevice->SetFVF(D3DFVF_CUSTOMVETEX); D3DXMatrixTranslation(&m_VenusRound, 0, 0, 0); D3DXMatrixScaling(&mScale,1.4,0,1.4); D3DXMatrixMultiply(&m_VenusRound,&m_VenusRound,&mScale ); m_pd3dDevice->SetTransform(D3DTS_WORLD, &m_VenusRound); m_pd3dDevice->DrawPrimitive( D3DPT_LINESTRIP ,0,36);//轨迹 /***********/ /*地球*/ D3DXMATRIX m_EarthWorld,m_EarthRound; D3DXMATRIX m_earthtrans;//平移矩阵 D3DXMATRIX m_earthRotationself;//自转矩阵 D3DXMATRIX m_earthRotationpublic;//公转矩阵 D3DXMatrixTranslation(&m_earthtrans,10,0,0);//平移 D3DXMatrixRotationY(&m_earthRotationself,timeGetTime()/1000.0f);//地球自转 D3DXMatrixRotationY(&m_earthRotationpublic,timeGetTime()/5000.0f);//地球公转 //m_EarthWorld=m_earthRotationself*(m_earthtrans*m_earthRotationpublic)*m_SunWorld;//先平移，再旋转！！！ D3DXMatrixMultiply(&m_EarthWorld,&m_earthRotationself,&(m_earthtrans*m_earthRotationpublic) ); D3DXMatrixMultiply(&m_EarthWorld,&m_EarthWorld,&m_SunWorld ); m_pd3dDevice->SetTransform(D3DTS_WORLD,&m_EarthWorld); m_pd3dDevice ->SetTexture(0,m_pTexture[3]); m_Earth->DrawSubset(0); m_pd3dDevice->SetStreamSource(0, m_pBufferRec,0,sizeof(CUSTOMVERTEX)); m_pd3dDevice->SetFVF(D3DFVF_CUSTOMVETEX); D3DXMatrixTranslation(&m_EarthRound, 0, 0, 0); D3DXMatrixScaling(&mScale,2,0,2); D3DXMatrixMultiply(&m_EarthRound,&m_EarthRound,&mScale ); m_pd3dDevice->SetTransform(D3DTS_WORLD, &m_EarthRound); m_pd3dDevice->DrawPrimitive( D3DPT_LINESTRIP ,0,36);//轨迹 /***********/ /*月球*/ D3DXMATRIX m_MoonWorld,m_MoonRound; D3DXMATRIX m_moontrans;//平移矩阵 D3DXMATRIX m_moonRotationSelf;//自转矩阵 D3DXMATRIX m_moonRotationpublic;//公转矩阵 D3DXMatrixTranslation(&m_moontrans,2,0,0);//平移 D3DXMatrixRotationY(&m_moonRotationSelf,timeGetTime()/1000.0f);//月球自转 D3DXMatrixRotationY(&m_moonRotationpublic,timeGetTime()/1000.0f);//月球公转 //m_MoonWorld=m_moonRotationSelf*(m_moontrans*m_moonRotationpublic)*(m_earthtrans*m_earthRotationpublic)*m_SunWorld; D3DXMatrixMultiply(&m_MoonWorld,&m_moonRotationSelf,&(m_moontrans*m_moonRotationpublic) ); D3DXMatrixMultiply(&m_MoonWorld,&m_MoonWorld,&(m_earthtrans*m_earthRotationpublic) ); D3DXMatrixMultiply(&m_MoonWorld,&m_MoonWorld,&m_SunWorld ); m_pd3dDevice->SetTransform(D3DTS_WORLD,&m_MoonWorld); m_p