D3D11法线映射示例

#include "GeometryGens.h" namespace GeoGen { void CreateBox(float width, float height, float depth, MeshData &mesh) { mesh.vertices.clear(); mesh.indices.clear(); //24 vertices mesh.vertices.resize(24); //36 indices mesh.indices.resize(36); float halfW = width * 0.5f; float halfH = height * 0.5f; float halfD = depth * 0.5f; //front mesh.vertices[0].pos = XMFLOAT3(-halfW,-halfH,-halfD); mesh.vertices[0].normal = XMFLOAT3(0.f,0.f,-1.f); mesh.vertices[0].tangent = XMFLOAT3(1.f,0.f,0.f); mesh.vertices[0].tex = XMFLOAT2(0.f,1.f); mesh.vertices[1].pos = XMFLOAT3(-halfW,halfH,-halfD); mesh.vertices[1].normal = XMFLOAT3(0.f,0.f,-1.f); mesh.vertices[1].tangent = XMFLOAT3(1.f,0.f,0.f); mesh.vertices[1].tex = XMFLOAT2(0.f,0.f); mesh.vertices[2].pos = XMFLOAT3(halfW,halfH,-halfD); mesh.vertices[2].normal = XMFLOAT3(0.f,0.f,-1.f); mesh.vertices[2].tangent = XMFLOAT3(1.f,0.f,0.f); mesh.vertices[2].tex = XMFLOAT2(1.f,0.f); mesh.vertices[3].pos = XMFLOAT3(halfW,-halfH,-halfD); mesh.vertices[3].normal = XMFLOAT3(0.f,0.f,-1.f); mesh.vertices[3].tangent = XMFLOAT3(1.f,0.f,0.f); mesh.vertices[3].tex = XMFLOAT2(1.f,1.f); //left mesh.vertices[4].pos = XMFLOAT3(-halfW,-halfH,halfD); mesh.vertices[4].normal = XMFLOAT3(-1.f,0.f,0.f); mesh.vertices[4].tangent = XMFLOAT3(0.f,0.f,-1.f); mesh.vertices[4].tex = XMFLOAT2(0.f,1.f); mesh.vertices[5].pos = XMFLOAT3(-halfW,halfH,halfD); mesh.vertices[5].normal = XMFLOAT3(-1.f,0.f,0.f); mesh.vertices[5].tangent = XMFLOAT3(0.f,0.f,-1.f); mesh.vertices[5].tex = XMFLOAT2(0.f,0.f); mesh.vertices[6].pos = XMFLOAT3(-halfW,halfH,-halfD); mesh.vertices[6].normal = XMFLOAT3(-1.f,0.f,0.f); mesh.vertices[6].tangent = XMFLOAT3(0.f,0.f,-1.f); mesh.vertices[6].tex = XMFLOAT2(1.f,0.f); mesh.vertices[7].pos = XMFLOAT3(-halfW,-halfH,-halfD); mesh.vertices[7].normal = XMFLOAT3(-1.f,0.f,0.f); mesh.vertices[7].tangent = XMFLOAT3(0.f,0.f,-1.f); mesh.vertices[7].tex = XMFLOAT2(1.f,1.f); //back mesh.vertices[8].pos = XMFLOAT3(halfW,-halfH,halfD); mesh.vertices[8].normal = XMFLOAT3(0.f,0.f,1.f); mesh.vertices[8].tangent = XMFLOAT3(-1.f,0.f,0.f); mesh.vertices[8].tex = XMFLOAT2(0.f,1.f); mesh.vertices[9].pos = XMFLOAT3(halfW,halfH,halfD); mesh.vertices[9].normal = XMFLOAT3(0.f,0.f,1.f); mesh.vertices[9].tangent = XMFLOAT3(-1.f,0.f,0.f); mesh.vertices[9].tex = XMFLOAT2(0.f,0.f); mesh.vertices[10].pos = XMFLOAT3(-halfW,halfH,halfD); mesh.vertices[10].normal = XMFLOAT3(0.f,0.f,1.f); mesh.vertices[10].tangent = XMFLOAT3(-1.f,0.f,0.f); mesh.vertices[10].tex = XMFLOAT2(1.f,0.f); mesh.vertices[11].pos = XMFLOAT3(-halfW,-halfH,halfD); mesh.vertices[11].normal = XMFLOAT3(0.f,0.f,1.f); mesh.vertices[11].tangent = XMFLOAT3(-1.f,0.f,0.f); mesh.vertices[11].tex = XMFLOAT2(1.f,1.f); //right mesh.vertices[12].pos = XMFLOAT3(halfW,-halfH,-halfD); mesh.vertices[12].normal = XMFLOAT3(1.f,0.f,0.f); mesh.vertices[12].tangent = XMFLOAT3(0.f,0.f,1.f); mesh.vertices[12].tex = XMFLOAT2(0.f,1.f); mesh.vertices[13].pos = XMFLOAT3(halfW,halfH,-halfD); mesh.vertices[13].normal = XMFLOAT3(1.f,0.f,0.f); mesh.vertices[13].tangent = XMFLOAT3(0.f,0.f,1.f); mesh.vertices[13].tex = XMFLOAT2(0.f,0.f); mesh.vertices[14].pos = XMFLOAT3(halfW,halfH,halfD); mesh.vertices[14].normal = XMFLOAT3(1.f,0.f,0.f); mesh.vertices[14].tangent = XMFLOAT3(0.f,0.f,1.f); mesh.vertices[14].tex = XMFLOAT2(1.f,0.f); mesh.vertices[15].pos = XMFLOAT3(halfW,-halfH,halfD); mesh.vertices[15].normal = XMFLOAT3(1.f,0.f,0.f); mesh.vertices[15].tangent = XMFLOAT3(0.f,0.f,1.f); mesh.vertices[15].tex = XMFLOAT2(1.f,1.f); //top mesh.vertices[16].pos = XMFLOAT3(-halfW,halfH,-halfD); mesh.vertices[16].normal = XMFLOAT3(0.f,1.f,0.f); mesh.vertices[16].tangent = XMFLOAT3(1.f,0.f,0.f); mesh.vertices[16].tex = XMFLOAT2(0.f,1.f); mesh.vertices[17].pos = XMFLOAT3(-halfW,halfH,halfD); mesh.vertices[17].normal = XMFLOAT3(0.f,1.f,0.f); mesh.vertices[17].tangent = XMFLOAT3(1.f,0.f,0.f); mesh.vertices[17].tex = XMFLOAT2(0.f,0.f); mesh.vertices[18].pos = XMFLOAT3(halfW,halfH,halfD); mesh.vertices[18].normal = XMFLOAT3(0.f,1.f,0.f); mesh.vertices[18].tangent = XMFLOAT3(1.f,0.f,0.f); mesh.vertices[18].tex = XMFLOAT2(1.f,0.f); mesh.vertices[19].pos = XMFLOAT3(halfW,halfH,-halfD); mesh.vertices[19].normal = XMFLOAT3(0.f,1.f,0.f); mesh.vertices[19].tangent = XMFLOAT3(1.f,0.f,0.f); mesh.vertices[19].tex = XMFLOAT2(1.f,1.f); //bottom mesh.vertices[20].pos = XMFLOAT3(-halfW,-halfH,halfD); mesh.vertices[20].normal = XMFLOAT3(0.f,-1.f,0.f); mesh.vertices[20].tangent = XMFLOAT3(1.f,0.f,0.f); mesh.vertices[20].tex = XMFLOAT2(0.f,1.f); mesh.vertices[21].pos = XMFLOAT3(-halfW,-halfH,-halfD); mesh.vertices[21].normal = XMFLOAT3(0.f,-1.f,0.f); mesh.vertices[21].tangent = XMFLOAT3(1.f,0.f,0.f); mesh.vertices[21].tex = XMFLOAT2(0.f,0.f); mesh.vertices[22].pos = XMFLOAT3(halfW,-halfH,-halfD); mesh.vertices[22].normal = XMFLOAT3(0.f,-1.f,0.f); mesh.vertices[22].tangent = XMFLOAT3(1.f,0.f,0.f); mesh.vertices[22].tex = XMFLOAT2(1.f,0.f); mesh.vertices[23].pos = XMFLOAT3(halfW,-halfH,halfD); mesh.vertices[23].normal = XMFLOAT3(0.f,-1.f,0.f); mesh.vertices[23].tangent = XMFLOAT3(1.f,0.f,0.f); mesh.vertices[23].tex = XMFLOAT2(1.f,1.f); //Construct index mesh.indices[0] = 0; mesh.indices[1] = 1; mesh.indices[2] = 2; mesh.indices[3] = 0; mesh.indices[4] = 2; mesh.indices[5] = 3; mesh.indices[6] = 4; mesh.indices[7] = 5; mesh.indices[8] = 6; mesh.indices[9] = 4; mesh.indices[10] = 6; mesh.indices[11] = 7; mesh.indices[12] = 8; mesh.indices[13] = 9; mesh.indices[14] = 10; mesh.indices[15] = 8; mesh.indices[16] = 10; mesh.indices[17] = 11; mesh.indices[18] = 12; mesh.indices[19] = 13; mesh.indices[20] = 14; mesh.indices[21] = 12; mesh.indices[22] = 14; mesh.indices[23] = 15; mesh.indices[24] = 16; mesh.indices[25] = 17; mesh.indices[26] = 18; mesh.indices[27] = 16; mesh.indices[28] = 18; mesh.indices[29] = 19; mesh.indices[30] = 20; mesh.indices[31] = 21; mesh.indices[32] = 22; mesh.indices[33] = 20; mesh.indices[34] = 22; mesh.indices[35] = 23; } void CreateGrid(float width, float height, UINT m, UINT n, MeshData &mesh) { mesh.vertices.clear(); mesh.indices.clear(); UINT nVertsRow = m + 1; UINT nVertsCol = n + 1; //Start coordinates: oX, oZ float oX = -width * 0.5f; float oZ = height * 0.5f; float dx = width / m; float dz = height /n; //texture coordinate delta float dxTex = 1.f / m; float dyTex = 1.f /n; //Vertex number:nVertsRow * nVertsCol mesh.vertices.resize(nVertsRow * nVertsCol); for(UINT i=0; i<nVertsCol; ++i) { float tmpZ = oZ - dz * i; for(UINT j=0; j<nVertsRow; ++j) { UINT index = nVertsRow * i + j; mesh.vertices[index].pos.x = oX + dx * j; mesh.vertices[index].pos.y = 0.f; mesh.vertices[index].pos.z = tmpZ; mesh.vertices[index].normal = XMFLOAT3(0.f,1.f,0.f); mesh.vertices[index].tangent = XMFLOAT3(1.f,0.f,0.f); mesh.vertices[index].tex = XMFLOAT2(dxTex*j,dyTex*i); } } //Total grid number: m*n UINT nIndices = m * n * 6; mesh.indices.resize(nIndices); UINT tmp = 0; for(UINT i=0; i<n; ++i) { for(UINT j=0; j<m; ++j) { mesh.indices[tmp] = i * nVertsRow + j; mesh.indices[tmp+1] = i * nVertsRow + j + 1; mesh.indices[tmp+2] = (i + 1) * nVertsRow + j; mesh.indices[tmp+3] = i * nVertsRow + j + 1; mesh.indices[tmp+4] = (i + 1) * nVertsRow + j + 1; mesh.indices[tmp+5] = (i + 1) * nVertsRow + j; tmp += 6; } } } void CreateCylinder(float topRadius, float bottomRadius, float height, int