Directx3D9 : 半成品自制渲染引擎

#include<d3dx9.h> #include<direct.h> #include <fstream> #include <ctime> #include"CWindow.h" #include "GObject.h" namespace T3D { using namespace std; /* 静态模型节点定义 */ CStaticModel::CStaticModel(IDirect3DDevice9* dev, LPCWSTR Path) { ID3DXBuffer* MatBuffer = NULL; wchar_t* MPath = NULL; if (FAILED(D3DXLoadMeshFromX(MPath = (wchar_t*)Path, D3DXMESH_SYSTEMMEM, dev, NULL, &MatBuffer, NULL, &Num, &Mesh))) { char* I = NULL; HRESULT HE = NULL; if (FAILED(HE = D3DXLoadMeshFromX(MPath = GetAbsPath(I = WtoC(Path)), D3DXMESH_SYSTEMMEM, dev, NULL, &MatBuffer, NULL, &Num, &Mesh))) { delete I; MessageBox(NULL, L"无法载入模型，即将结束进程。", 0, 0); exit(-1); } delete I; } D3DXMATERIAL* PMat = (D3DXMATERIAL*)MatBuffer->GetBufferPointer(); Materials = new D3DMATERIAL9[Num]; Textures = new LPDIRECT3DTEXTURE9[Num]; for (int i = 0; i < Num; i++) { this->Materials[i] = PMat[i].MatD3D; this->Materials[i].Ambient = this->Materials->Diffuse; wchar_t* I = NULL; char* II = NULL; if (PMat[i].pTextureFilename != NULL && strlen(PMat[i].pTextureFilename) > 0) { if (FAILED(D3DXCreateTextureFromFile(dev, I = CtoW(PMat[i].pTextureFilename), &Textures[i]))) { delete I; I = NULL; if (FAILED(D3DXCreateTextureFromFile(dev, I = GetAbsPath(II = WtoC(MPath), PMat[i].pTextureFilename), &(Textures[i])))) { delete I; delete II; MessageBox(NULL, L"无法载入纹理，即将结束进程。", 0, 0); exit(-1); } } } delete II; delete I; I = NULL; II = NULL; } MPath = NULL; } CStaticModel::~CStaticModel() { for (int i = 0; i < (sizeof(*Textures) / sizeof(Textures[0])); i++) { this->Textures[i]->Release(); } this->Mesh->Release(); delete (this->Materials); delete (this->Materials); } D3DXMATRIX CStaticModel::GetWorldMatrix() { return *D3DXMatrixTranslation(NULL, Pos.x, Pos.y, Pos.z); } void CStaticModel::run(IDirect3DDevice9* dev) { for (int i = 0; i < Num; i++) { dev->SetMaterial(&Materials[i]); dev->SetTexture(0, Textures[i]); Mesh->DrawSubset(i); } } /* 可移动摄影机节点定义 */ CMovableCamera::CMovableCamera(IDirect3DDevice9* pDevice, D3DXVECTOR3 CAMPos, D3DXVECTOR3 AT, FLOAT Asp, FLOAT Step, FLOAT Fangle, BOOL UKEY, BOOL RorL, FLOAT Fovy, FLOAT Near, FLOAT Far, GKEY Key) : Step(Step), Fangle(Fangle), Key(Key), UKEY(UKEY), RorL(RorL) { m_pDevice = pDevice; m_vRightVector = D3DXVECTOR3(1.0f, 0.0f, 0.0f); m_vUpVector = D3DXVECTOR3(0.0f, 1.0f, 0.0f); m_vLookVector = D3DXVECTOR3(0.0f, 0.0f, 1.0f); m_vCameraPosition = D3DXVECTOR3(0.0f, 0.0f, -200.0f); m_vTargetPosition = D3DXVECTOR3(0.0f, 0.0f, 0.0f); this->SetCameraPosition(&CAMPos); this->SetTargetPosition(&AT); D3DXMATRIX P; this->SetProjectionMartix(D3DXMatrixPerspectiveFovLH(&P, Fovy, Asp, Near, Far)); } CMovableCamera::~CMovableCamera(void) { ; } void CMovableCamera::CalculateViewMatrix(D3DXMATRIX* pMatrix) { D3DXVec3Normalize(&m_vLookVector, &m_vLookVector); D3DXVec3Cross(&m_vUpVector, &m_vLookVector, &m_vRightVector); D3DXVec3Normalize(&m_vUpVector, &m_vUpVector); D3DXVec3Cross(&m_vRightVector, &m_vUpVector, &m_vLookVector); D3DXVec3Normalize(&m_vRightVector, &m_vRightVector); pMatrix->_11 = m_vRightVector.x; pMatrix->_12 = m_vUpVector.x; pMatrix->_13 = m_vLookVector.x; pMatrix->_14 = 0.0f; pMatrix->_21 = m_vRightVector.y; pMatrix->_22 = m_vUpVector.y; pMatrix->_23 = m_vLookVector.y; pMatrix->_24 = 0.0f; if (RorL == RL_L) { pMatrix->_31 = m_vRightVector.z; pMatrix->_32 = m_vUpVector.z; pMatrix->_33 = m_vLookVector.z; pMatrix->_34 = 0.0f; } else { pMatrix->_31 = -m_vRightVector.z; pMatrix->_32 = -m_vUpVector.z; pMatrix->_33 = -m_vLookVector.z; pMatrix->_34 = 0.0f; } pMatrix->_41 = -D3DXVec3Dot(&m_vRightVector, &m_vCameraPosition); pMatrix->_42 = -D3DXVec3Dot(&m_vUpVector, &m_vCameraPosition); pMatrix->_43 = -D3DXVec3Dot(&m_vLookVector, &m_vCameraPosition); pMatrix->_44 = 1.0f; } void CMovableCamera::SetTargetPosition(D3DXVECTOR3* PVector) { if (PVector) m_vTargetPosition = (*PVector); else m_vTargetPosition = D3DXVECTOR3(0.0f, 0.0f, 1.0f); m_vLookVector = m_vTargetPosition - m_vCameraPosition; D3DXVec3Normalize(&m_vLookVector, &m_vLookVector); D3DXVec3Cross(&m_vUpVector, &m_vLookVector, &m_vRightVector); D3DXVec3Normalize(&m_vUpVector, &m_vUpVector); D3DXVec3Cross(&m_vRightVector, &m_vUpVector, &m_vLookVector); D3DXVec3Normalize(&m_vRightVector, &m_vRightVector); } void CMovableCamera::SetCameraPosition(D3DXVECTOR3* PVector) { D3DXVECTOR3 v = D3DXVECTOR3(0.0f, 0.0f, -250.0f); m_vCameraPosition = PVector ? (*PVector) : v; } void CMovableCamera::SetViewMatrix(D3DXMATRIX* PMatrix) { if (PMatrix) m_matView = *PMatrix; else CalculateViewMatrix(&m_matView); m_pDevice->SetTransform(D3DTS_VIEW, &m_matView); m_vRightVector = D3DXVECTOR3(m_matView._11, m_matView._12, m_matView._13); m_vUpVector = D3DXVECTOR3(m_matView._21, m_matView._22, m_matView._23); m_vLookVector = D3DXVECTOR3(m_matView._31, m_matView._32, m_matView._33); } void CMovableCamera::SetProjectionMartix(D3DMATRIX* PMatrix) { if (PMatrix) m_matProj = *PMatrix; else D3DXMatrixPerspectiveFovLH(&m_matProj, D3DX_PI / 4.0F, 800 / 600, 1.0f, 30000.0f); m_pDevice->SetTransform(D3DTS_PROJECTION, &m_matProj); } void CMovableCamera::MoveAlongRightVec(float fUnits) { m_vCameraPosition += m_vRightVector * fUnits; m_vTargetPosition += m_vRightVector * fUnits; } void CMovableCamera::MoveAlongUpVec(float fUnits) { m_vCameraPosition += m_vUpVector * fUnits; m_vTargetPosition += m_vUpVector * fUnits; } void CMovableCamera::MoveAlongLookVec(float fUnits) { m_vCameraPosition += m_vLookVector * fUnits; m_vTargetPosition += m_vLookVector * fUnits; } void CMovableCamera::RotationRightVec(float fAngle) { D3DXMATRIX r; D3DXMatrixRotationAxis(&r, &m_vRightVector, fAngle); D3DXVec3TransformCoord(&m_vUpVector, &m_vUpVector, &r); D3DXVec3TransformCoord(&m_vLookVector, &m_vLookVector, &r); m_vTargetPosition = m_vLookVector * D3DXVec3Length(&m_vCameraPosition); } void CMovableCamera::RotationUpVec(float fAngle) { D3DXMATRIX r; D3DXMatrixRotationAxis(&r, &m_vUpVector, fAngle); D3DXVec3TransformCoord(&m_vRightVector, &m_vRightVector, &r); D3DXVec3TransformCoord(&m_vLookVector, &m_vLookVector, &r); m_vTargetPosition = m_vLookVector * D3DXVec3Length(&m_vCameraPosition); } void CMovableCamera::RotationLookVec(float fAngle) { D3DXMATRIX r; D3DXMatrixRotationAxis(&r, &m_vLookVector, fAngle); D3DXVec3TransformCoord(&m_vUpVector, &m_vUpVector, &r); D3DXVec3TransformCoord(&m_vRightVector, &m_vRightVector, &r); m_vTargetPosition = m_vLookVector * D3DXVec3Length(&m_vCameraPosition); } void CMovableCamera::IFKey() { if (UKEY) { if (KEY_DOWN(Key.FORWORD)) this->MoveAlongLookVec(Step); if (KEY_DOWN(Key.BACK)) this->MoveAlongLookVec(-Step); if (KEY_DOWN(Key.LIFT)) this->MoveAlongRightVec(-Step); if (KEY_DOWN(Key.RIGHT)) this->MoveAlongRightVec(Step); if (KEY_DOWN(Key.UP)) this->MoveAlongUpVec(Step); if (KEY_DOWN(Key.DOWN)) this->MoveAlongUpVec(-Step); if (KEY_DOWN(GK_R)) this->RotationUpVec(Fangle); if (KEY_DOWN(GK_F)) this->RotationUpVec(-Fangle); if (KEY_DOWN(GK_T)) this->RotationRightVec(-Fangle); if (KEY_DOWN(GK_G)) this->RotationRightVec(Fangle); } } void CMovableCamera::run(IDirect3DDevice9* dev) { this->IFKey(); D3DXMATRIX matView; D3DXMATRIX View; this->CalculateViewMatrix(&matView); this->Ge