/*! * \ingroup matrix */ void lib3ds_matrix_camera(Lib3dsMatrix matrix, Lib3dsVector pos, Lib3dsVector tgt, Lib3dsFloat roll) { Lib3dsMatrix M,R; Lib3dsVector x, y, z; lib3ds_vector_sub(y, tgt, pos); lib3ds_vector_normalize(y); z[0] = 0; z[1] = 0; z[2] = 1.0; lib3ds_vector_cross(x, y, z); lib3ds_vector_cross(z, x, y); lib3ds_vector_normalize(x); lib3ds_vector_normalize(y); lib3ds_matrix_identity(M); M[0][0] = x[0]; M[1][0] = x[1]; M[2][0] = x[2]; M[0][1] = y[0]; M[1][1] = y[1]; M[2][1] = y[2]; M[0][2] = z[0]; M[1][2] = z[1]; M[2][2] = z[2]; lib3ds_matrix_identity(R); lib3ds_matrix_rotate_y(R, roll); lib3ds_matrix_mul(matrix, R,M); lib3ds_matrix_translate_xyz(matrix, -pos[0],-pos[1],-pos[2]); }
/*! * \ingroup matrix */ void lib3ds_matrix_rotate(Lib3dsMatrix m, Lib3dsQuat q) { Lib3dsFloat s,xs,ys,zs,wx,wy,wz,xx,xy,xz,yy,yz,zz,l; Lib3dsMatrix a,b; lib3ds_matrix_copy(a, m); l=q[0]*q[0] + q[1]*q[1] + q[2]*q[2] + q[3]*q[3]; if (fabs(l)<LIB3DS_EPSILON) { s=1.0f; } else { s=2.0f/l; } xs = q[0] * s; ys = q[1] * s; zs = q[2] * s; wx = q[3] * xs; wy = q[3] * ys; wz = q[3] * zs; xx = q[0] * xs; xy = q[0] * ys; xz = q[0] * zs; yy = q[1] * ys; yz = q[1] * zs; zz = q[2] * zs; b[0][0]=1.0f - (yy +zz); b[1][0]=xy - wz; b[2][0]=xz + wy; b[0][1]=xy + wz; b[1][1]=1.0f - (xx +zz); b[2][1]=yz - wx; b[0][2]=xz - wy; b[1][2]=yz + wx; b[2][2]=1.0f - (xx + yy); b[3][0]=b[3][1]=b[3][2]=b[0][3]=b[1][3]=b[2][3]=0.0f; b[3][3]=1.0f; lib3ds_matrix_mul(m,a,b); }
static void create_node(Lib3dsFile *f, Lib3dsNode *node, FILE *o) { Lib3dsMesh *mesh; if ((node->type==LIB3DS_OBJECT_NODE) && (strcmp(node->name,"$$$DUMMY")!=0)) { mesh=lib3ds_file_mesh_by_name(f, node->name); ASSERT(mesh); if (mesh) { Lib3dsObjectData *d=&node->data.object; fprintf(o, "\n\n##\n## Object: %s\n##\n", node->name); fprintf(o, "AttributeBegin\n"); { Lib3dsMatrix N,M,X; lib3ds_matrix_copy(N, node->matrix); lib3ds_matrix_translate_xyz(N, -d->pivot[0], -d->pivot[1], -d->pivot[2]); lib3ds_matrix_copy(M, mesh->matrix); lib3ds_matrix_inv(M); lib3ds_matrix_mul(X,N,M); rib_concat_transform(o, X); } { unsigned p; int i, j; Lib3dsVector *normalL=malloc(3*sizeof(Lib3dsVector)*mesh->faces); lib3ds_mesh_calculate_normals(mesh, normalL); Lib3dsMaterial *lastmat = NULL; int nalloc = 256, nfaces = 0; float *P = (float *)malloc(nalloc*9*sizeof(float)); float *N = (float *)malloc(nalloc*9*sizeof(float)); float *uv = (float *)malloc(nalloc*6*sizeof(float)); for (p=0; p<mesh->faces; ++p) { Lib3dsFace *face=&mesh->faceL[p]; Lib3dsMaterial *mat=lib3ds_file_material_by_name(f, face->material); if (mat && mat != lastmat) { char *Kdmap = NULL, *Omap = NULL; flushpp(o, P, N, uv, nfaces); nfaces = 0; lastmat = mat; if (mat->texture1_map.name[0]) { Kdmap = GetTexture(o, mat->texture1_map.name, mat->texture1_mask.name, 0); char *scale = malloc(strlen(Kdmap)+20); strcpy(scale, Kdmap); strcat(scale, "-scale"); fprintf(o, "Texture \"%s\" \"color\" \"scale\" \"texture tex1\" \"%s\" " "\"color tex2\" [.8 .8 .8]\n", scale, Kdmap); Kdmap = scale; } if (mat->opacity_map.name[0]) Omap = GetTexture(o, mat->opacity_map.name, mat->opacity_mask.name, 0); char *bumpScale = NULL; if (mat->bump_map.name[0]) { char *Bmap = GetTexture(o, mat->bump_map.name, mat->bump_mask.name, 1); bumpScale = malloc(strlen(Bmap)+20); strcpy(bumpScale, Bmap); strcat(bumpScale, "-scale"); fprintf(o, "Texture \"%s\" \"float\" \"scale\" \"texture tex1\" \"%s\" " "\"float tex2\" [.05]\n", bumpScale, Bmap); } fprintf(o, "Material \"uber\" "); if (Kdmap) fprintf(o, "\"texture Kd\" \"%s\" ", Kdmap); else fprintf(o, "\"color Kd\" [%f %f %f] ", mat->diffuse[0], mat->diffuse[1], mat->diffuse[2]); if (Omap) fprintf(o, "\"texture opacity\" \"%s\" ", Omap); else fprintf(o, "\"color opacity\" [%f %f %f] ", 1.f - mat->transparency, 1.f - mat->transparency, 1.f - mat->transparency); fprintf(o, "\"color Ks\" [%f %f %f] " "\"float roughness\" [%f] ", mat->specular[0]*mat->shin_strength, mat->specular[1]*mat->shin_strength, mat->specular[2]*mat->shin_strength, mat->shininess ); //CO dumptex(o, "tex2", &mat->texture2_map); //CO dumptex(o, "tex2mask", &mat->texture2_mask); //CO dumptex(o, "specular", &mat->specular_map); //CO dumptex(o, "specularmask", &mat->specular_mask); //CO dumptex(o, "shininess", &mat->shininess_map); //CO dumptex(o, "shininessmask", &mat->shininess_mask); //CO dumptex(o, "reflection", &mat->reflection_map); //CO dumptex(o, "reflectionmask", &mat->reflection_mask); fprintf(o, "\n"); if (bumpScale) fprintf(o, "\"float bumpmap\" \"%s\"\n", bumpScale); } if (nfaces+1 == nalloc) { nalloc *= 2; P = (float *)realloc(P, nalloc*9*sizeof(float)); N = (float *)realloc(N, nalloc*9*sizeof(float)); uv = (float *)realloc(uv, nalloc*6*sizeof(float)); } for (i = 0; i < 3; ++i) { for (j = 0; j < 3; ++j) { P[9*nfaces+3*i+j] = mesh->pointL[face->points[i]].pos[j]; N[9*nfaces+3*i+j] = normalL[3*p+i][j]; if (j != 2 && mesh->texelL) uv[6*nfaces+2*i+j] = mesh->texelL[face->points[i]][j]; } if (!mesh->texelL) { uv[6*nfaces+0] = 0; uv[6*nfaces+1] = 0; uv[6*nfaces+2] = 0; uv[6*nfaces+3] = 1; uv[6*nfaces+4] = 1; uv[6*nfaces+5] = 0; } } ++nfaces; } flushpp(o, P, N, uv, nfaces); free(P); free(N); free(uv); free(normalL); } nTextures = 0; fprintf(o, "AttributeEnd\n"); } } { Lib3dsNode *n; for (n=node->childs; n; n=n->next) { create_node(f,n,o); } } }
static void create_node(Lib3dsFile *f, Lib3dsNode *node, FILE *o) { Lib3dsMesh *mesh; if ((node->type==LIB3DS_OBJECT_NODE) && (strcmp(node->name,"$$$DUMMY")!=0)) { mesh=lib3ds_file_mesh_by_name(f, node->name); ASSERT(mesh); if (mesh) { Lib3dsObjectData *d=&node->data.object; fprintf(o, "AttributeBegin\n"); fprintf(o, "Surface \"matte\" \"Kd\" [0.75]\n"); fprintf(o, "Color 1 1 1\n"); { Lib3dsMatrix N,M,X; lib3ds_matrix_copy(N, node->matrix); lib3ds_matrix_translate_xyz(N, -d->pivot[0], -d->pivot[1], -d->pivot[2]); lib3ds_matrix_copy(M, mesh->matrix); lib3ds_matrix_inv(M); lib3ds_matrix_mul(X,N,M); rib_concat_transform(o, X); } { unsigned p; Lib3dsVector *normalL=malloc(3*sizeof(Lib3dsVector)*mesh->faces); lib3ds_mesh_calculate_normals(mesh, normalL); for (p=0; p<mesh->faces; ++p) { Lib3dsFace *face=&mesh->faceL[p]; Lib3dsMaterial *mat=lib3ds_file_material_by_name(f, face->material); if (mat) { fprintf(o, "Color [%f %f %f]\n", mat->diffuse[0], mat->diffuse[1], mat->diffuse[2] ); fprintf(o, "Surface " "\"lib3dsmaterial\" " "\"color specularcolor\" [%f %f %f] " "\"float shininess \" [%f] " "\"float shin_stength \" [%f] " "\n", mat->specular[0], mat->specular[1], mat->specular[2], mat->shininess, mat->shin_strength ); } fprintf(o, "Polygon \"P\" [%f %f %f %f %f %f %f %f %f] ", mesh->pointL[face->points[0]].pos[0], mesh->pointL[face->points[0]].pos[1], mesh->pointL[face->points[0]].pos[2], mesh->pointL[face->points[1]].pos[0], mesh->pointL[face->points[1]].pos[1], mesh->pointL[face->points[1]].pos[2], mesh->pointL[face->points[2]].pos[0], mesh->pointL[face->points[2]].pos[1], mesh->pointL[face->points[2]].pos[2] ); fprintf(o, "\"N\" [%f %f %f %f %f %f %f %f %f] ", normalL[3*p+0][0], normalL[3*p+0][1], normalL[3*p+0][2], normalL[3*p+1][0], normalL[3*p+1][1], normalL[3*p+1][2], normalL[3*p+2][0], normalL[3*p+2][1], normalL[3*p+2][2] ); } free(normalL); } fprintf(o, "AttributeEnd\n"); } } { Lib3dsNode *n; for (n=node->childs; n; n=n->next) { create_node(f,n,o); } } }