D3D11(StencilBuffer)镜子的实现

#include <WinApp.h> #include <Lights.h> #include <GeometryGens.h> #include <RenderStates.h> #include <AppUtil.h> #include "Effects.h" #include "Inputs.h" #include <crtdbg.h> using namespace std; class MirrorDemo: public WinApp { public: MirrorDemo(HINSTANCE hInst, std::wstring title = L"D3D11学习 模板缓冲区的使用->镜子的实现", int width = 800, int height = 600); ~MirrorDemo(); bool Init(); bool Update(float delta); bool Render(); void OnMouseDown(WPARAM btnState, int x, int y); void OnMouseUp(WPARAM btnState, int x, int y); void OnMouseMove(WPARAM btnState, int x, int y); private: bool BuildBuffers(); bool BuildShaderResources(); private: //两个顶点、索引缓冲冲 ID3D11Buffer *m_VBPlane; ID3D11Buffer *m_IBPlane; //墙面、地面 ID3D11Buffer *m_VBBox; ID3D11Buffer *m_IBBox; //箱子 GeoGen::MeshData m_box; //箱子对应mesh Lights::DirLight m_dirLights[3]; //三个平行光源 ID3D11ShaderResourceView *m_SRVWall; //墙、地板、箱子、镜子对应的纹理 ID3D11ShaderResourceView *m_SRVFloor; ID3D11ShaderResourceView *m_SRVBox; ID3D11ShaderResourceView *m_SRVMirror; Lights::Material m_materialWall; //材质 Lights::Material m_materialFloor; Lights::Material m_materialBox; Lights::Material m_materialMirror; XMFLOAT4X4 m_view; //视角、投影矩阵 XMFLOAT4X4 m_proj; //每部分对应的变换矩阵 XMFLOAT4X4 m_worldWall; XMFLOAT4X4 m_wvpWall; XMFLOAT4X4 m_worldInvTransposeWall; XMFLOAT4X4 m_texTransWall; XMFLOAT4X4 m_worldFloor; XMFLOAT4X4 m_wvpFloor; XMFLOAT4X4 m_worldInvTransposeFloor; XMFLOAT4X4 m_texTransFloor; XMFLOAT4X4 m_worldBox; XMFLOAT4X4 m_wvpBox; XMFLOAT4X4 m_worldInvTransposeBox; XMFLOAT4X4 m_texTransBox; XMFLOAT4X4 m_worldMirror; XMFLOAT4X4 m_wvpMirror; XMFLOAT4X4 m_worldInvTransposeMirror; XMFLOAT4X4 m_texTransMirror; //鼠标控制参数 float m_theta, m_phy; float m_radius; POINT m_lastPos; }; MirrorDemo::MirrorDemo(HINSTANCE hInst, std::wstring title, int width, int height):WinApp(hInst,title,width,height), m_VBPlane(NULL), m_IBPlane(NULL), m_VBBox(NULL), m_IBBox(NULL), m_SRVWall(NULL), m_SRVFloor(NULL), m_SRVBox(NULL), m_theta(1.5f*XM_PI), m_phy(XM_PI*0.45f), m_radius(8.f) { //"三点式"照明 //主光源 m_dirLights[0].ambient = XMFLOAT4(0.3f, 0.3f, 0.3f, 1.0f); m_dirLights[0].diffuse = XMFLOAT4(0.5f, 0.5f, 0.5f, 1.0f); m_dirLights[0].specular = XMFLOAT4(0.5f, 0.5f, 0.5f, 1.0f); m_dirLights[0].dir = XMFLOAT3(0.57735f, -0.57735f, 0.57735f); //侧光源 m_dirLights[1].ambient = XMFLOAT4(0.0f, 0.0f, 0.0f, 1.0f); m_dirLights[1].diffuse = XMFLOAT4(0.20f, 0.20f, 0.20f, 1.0f); m_dirLights[1].specular = XMFLOAT4(0.25f, 0.25f, 0.25f, 1.0f); m_dirLights[1].dir = XMFLOAT3(-0.57735f, -0.57735f, 0.57735f); //背光源 m_dirLights[2].ambient = XMFLOAT4(0.0f, 0.0f, 0.0f, 1.0f); m_dirLights[2].diffuse = XMFLOAT4(0.2f, 0.2f, 0.2f, 1.0f); m_dirLights[2].specular = XMFLOAT4(0.0f, 0.0f, 0.0f, 1.0f); m_dirLights[2].dir = XMFLOAT3(0.0f, -0.707f, -0.707f); //材质 m_materialWall.ambient = XMFLOAT4(0.5f, 0.5f, 0.5f, 1.0f); m_materialWall.diffuse = XMFLOAT4(1.f, 1.f, 1.f, 1.0f); m_materialWall.specular = XMFLOAT4(0.3f, 0.3f, 0.3f, 16.0f); m_materialBox.ambient = XMFLOAT4(0.5f, 0.5f, 0.5f, 1.0f); m_materialBox.diffuse = XMFLOAT4(1.f, 1.f, 1.f, 1.0f); m_materialBox.specular = XMFLOAT4(0.3f, 0.3f, 0.3f, 16.0f); m_materialFloor.ambient = XMFLOAT4(0.5f, 0.5f, 0.5f, 1.0f); m_materialFloor.diffuse = XMFLOAT4(1.0f, 1.0f, 1.0f, 1.f); m_materialFloor.specular = XMFLOAT4(0.8f, 0.8f, 0.8f, 32.0f); m_materialMirror.ambient = XMFLOAT4(0.5f, 0.5f, 0.5f, 1.0f); m_materialMirror.diffuse = XMFLOAT4(1.0f, 1.0f, 1.0f, 0.5f); m_materialMirror.specular = XMFLOAT4(0.8f, 0.8f, 0.8f, 100.0f); XMStoreFloat4x4(&m_worldWall,XMMatrixIdentity()); XMStoreFloat4x4(&m_worldInvTransposeWall, XMMatrixIdentity()); XMStoreFloat4x4(&m_texTransWall,XMMatrixIdentity()); XMStoreFloat4x4(&m_worldFloor,XMMatrixIdentity()); XMStoreFloat4x4(&m_worldInvTransposeFloor, XMMatrixIdentity()); XMStoreFloat4x4(&m_texTransFloor, XMMatrixScaling(3.f,2.f,1.f)); XMStoreFloat4x4(&m_texTransBox,XMMatrixIdentity()); XMStoreFloat4x4(&m_worldMirror, XMMatrixIdentity()); XMStoreFloat4x4(&m_worldInvTransposeMirror,XMMatrixIdentity()); XMStoreFloat4x4(&m_texTransMirror,XMMatrixIdentity()); } MirrorDemo::~MirrorDemo() { SafeRelease(m_SRVBox); SafeRelease(m_SRVFloor); SafeRelease(m_SRVWall); SafeRelease(m_SRVMirror); SafeRelease(m_VBPlane); SafeRelease(m_IBPlane); SafeRelease(m_VBBox); SafeRelease(m_IBBox); Effects::ReleaseAll(); InputLayouts::ReleaseAll(); RenderStates::ReleaseAll(); } bool MirrorDemo::Init() { if(!WinApp::Init()) return false; if(!Effects::InitAll(m_d3dDevice)) return false; if(!InputLayouts::InitAll(m_d3dDevice)) return false; if(!RenderStates::InitAll(m_d3dDevice)) return false; if(!BuildBuffers()) return false; if(!BuildShaderResources()) return false; return true; } bool MirrorDemo::BuildBuffers() { //创建墙、地面对应顶点、索引 Vertex::Basic32 vertices[12]; vertices[0].pos = XMFLOAT3(-7.5f,-2.5f,5.f); vertices[0].normal = XMFLOAT3(0.f,0.f,-1.f); vertices[0].tex = XMFLOAT2(0.f,1.f); vertices[1].pos = XMFLOAT3(-7.5f,2.5f,5.f); vertices[1].normal = XMFLOAT3(0.f,0.f,-1.f); vertices[1].tex = XMFLOAT2(0.f,0.f); vertices[2].pos = XMFLOAT3(-2.5f,2.5f,5.f); vertices[2].normal = XMFLOAT3(0.f,0.f,-1.f); vertices[2].tex = XMFLOAT2(1.f,0.f); vertices[3].pos = XMFLOAT3(-2.5f,-2.5f,5.f); vertices[3].normal = XMFLOAT3(0.f,0.f,-1.f); vertices[3].tex = XMFLOAT2(1.f,1.f); vertices[4].pos = XMFLOAT3(2.5f,-2.5f,5.f); vertices[4].normal = XMFLOAT3(0.f,0.f,-1.f); vertices[4].tex = XMFLOAT2(2.f,1.f); vertices[5].pos = XMFLOAT3(2.5f,2.5f,5.f); vertices[5].normal = XMFLOAT3(0.f,0.f,-1.f); vertices[5].tex = XMFLOAT2(2.f,0.f); vertices[6].pos = XMFLOAT3(7.5f,2.5f,5.f); vertices[6].normal = XMFLOAT3(0.f,0.f,-1.f); vertices[6].tex = XMFLOAT2(3.f,0.f); vertices[7].pos = XMFLOAT3(7.5f,-2.5f,5.f); vertices[7].normal = XMFLOAT3(0.f,0.f,-1.f); vertices[7].tex = XMFLOAT2(3.f,1.f); vertices[8].pos = XMFLOAT3(-7.5f,-2.5f,-5.f); vertices[8].normal = XMFLOAT3(0.f,1.f,0.f); vertices[8].tex = XMFLOAT2(0.f,1.f); vertices[9].pos = XMFLOAT3(-7.5f,-2.5f,5.f); vertices[9].normal = XMFLOAT3(0.f,1.f,0.f); vertices[9].tex = XMFLOAT2(0.f,0.f); vertices[10].pos = XMFLOAT3(7.5f,-2.5f,5.f); vertices[10].normal = XMFLOAT3(0.f,1.f,0.f); vertices[10].tex = XMFLOAT2(1.f,0.f); vertices[11].pos = XMFLOAT3(7.5f,-2.5f,-5.f); vertices[11].normal = XMFLOAT3(0.f,1.f,0.f); vertices[11].tex = XMFLOAT2(1.f,1.f); D3D11_BUFFER_DESC vbPlaneDesc = {0}; vbPlaneDesc.ByteWidth = 12 * sizeof(Vertex::Basic32); vbPlaneDesc.BindFlags = D3D11_BIND_VERTEX_BUFFER; vbPlaneDesc.Usage = D3D11_USAGE_IMMUTABLE; D3D11_SUBRESOURCE_DATA planeData; planeData.pSysMem = vertices; planeData.SysMemPitch = 0; planeData.SysMemSlicePitch = 0; if(FAILED(m_d3dDevice->CreateBuffer(&vbPlaneDesc,&planeData,&m_VBPlane))) return false; UINT indices[24] = { 0,1,2, 0,2,3, 3,2,5, 3,5,4, 4,5,6, 4,6,7, 8,9,10, 8,10,11 }; D3D11_BUFFER_DESC ibPlaneDesc = {0}; ibPlaneDesc.ByteWidth = 24*sizeof(UINT); ibPlaneDesc.BindFlags = D3D11_BIND_INDEX_BUFFER; ibPlaneDesc.Usage = D3D11_USAGE_IMMUTABLE; D3D11_SUBRESOURCE_DATA planeIData; planeIData.pSysMem = indices; planeIData.SysMemPitch = 0; planeIData.SysMemSlicePitch = 0; if(FAILED(m_d3dDevice->CreateBuffer(&ibPlaneDesc,&planeIData,&m_IBPlane))) return false; //创建箱子顶点、索引 GeoGen::CreateBox(2.f,2.f,2.f,m_box); vector<Vertex::Basic32> boxVertices(m_box.vertices.size()); for(UINT i=0; i<m_box.vertices.size(); ++i) { boxVertices[i].pos = m_box.vertices[i].pos; boxVertices[i