void x3ds_definition::ensure_camera() { if (m_file->cameras == NULL) { // Fabricate camera Lib3dsCamera* camera = lib3ds_camera_new("Perscpective"); float size; Lib3dsVector bmin, bmax; get_bounding_center(bmin, bmax, camera->target, &size); memcpy(camera->position, camera->target, sizeof(camera->position)); camera->position[0] = bmax[0] + 0.75f * size; camera->position[1] = bmin[1] - 0.75f * size; camera->position[2] = bmax[2] + 0.75f * size; // hack Lib3dsMatrix m; lib3ds_matrix_identity(m); lib3ds_matrix_rotate_z(m, 1.6f); // PI/2 lib3ds_matrix_rotate_y(m, 0.3f); lib3ds_vector_transform(camera->position, m, camera->position); camera->near_range = (camera->position[0] - bmax[0] ) * 0.5f; camera->far_range = (camera->position[0] - bmin[0] ) * 3.0f; lib3ds_file_insert_camera(m_file, camera); } }
static Lib3dsBool named_object_read(Lib3dsFile *file, FILE *f) { Lib3dsChunk c; char name[64]; Lib3dsWord chunk; if (!lib3ds_chunk_read_start(&c, LIB3DS_NAMED_OBJECT, f)) { return(LIB3DS_FALSE); } if (!lib3ds_string_read(name, 64, f)) { return(LIB3DS_FALSE); } lib3ds_chunk_dump_info(" NAME=%s", name); lib3ds_chunk_read_tell(&c, f); while ((chunk=lib3ds_chunk_read_next(&c, f))!=0) { switch (chunk) { case LIB3DS_N_TRI_OBJECT: { Lib3dsMesh *mesh; mesh=lib3ds_mesh_new(name); if (!mesh) { return(LIB3DS_FALSE); } lib3ds_chunk_read_reset(&c, f); if (!lib3ds_mesh_read(mesh, f)) { return(LIB3DS_FALSE); } lib3ds_file_insert_mesh(file, mesh); } break; case LIB3DS_N_CAMERA: { Lib3dsCamera *camera; camera=lib3ds_camera_new(name); if (!camera) { return(LIB3DS_FALSE); } lib3ds_chunk_read_reset(&c, f); if (!lib3ds_camera_read(camera, f)) { return(LIB3DS_FALSE); } lib3ds_file_insert_camera(file, camera); } break; case LIB3DS_N_DIRECT_LIGHT: { Lib3dsLight *light; light=lib3ds_light_new(name); if (!light) { return(LIB3DS_FALSE); } lib3ds_chunk_read_reset(&c, f); if (!lib3ds_light_read(light, f)) { return(LIB3DS_FALSE); } lib3ds_file_insert_light(file, light); } break; default: lib3ds_chunk_unknown(chunk); } } lib3ds_chunk_read_end(&c, f); return(LIB3DS_TRUE); }
/*! * Load the model from .3ds file. */ static void load_model(void) { file=lib3ds_file_load(filepath); if (!file) { puts("3dsplayer: Error: Loading 3DS file failed.\n"); exit(1); } /* No nodes? Fabricate nodes to display all the meshes. */ if( !file->nodes ) { Lib3dsMesh *mesh; Lib3dsNode *node; for(mesh = file->meshes; mesh != NULL; mesh = mesh->next) { node = lib3ds_node_new_object(); strcpy(node->name, mesh->name); node->parent_id = LIB3DS_NO_PARENT; lib3ds_file_insert_node(file, node); } } lib3ds_file_eval(file, 1.0f); lib3ds_file_bounding_box_of_nodes(file, LIB3DS_TRUE, LIB3DS_FALSE, LIB3DS_FALSE, bmin, bmax); sx = bmax[0] - bmin[0]; sy = bmax[1] - bmin[1]; sz = bmax[2] - bmin[2]; size = MAX(sx, sy); size = MAX(size, sz); cx = (bmin[0] + bmax[0])/2; cy = (bmin[1] + bmax[1])/2; cz = (bmin[2] + bmax[2])/2; /* No cameras in the file? Add four */ if( !file->cameras ) { /* Add some cameras that encompass the bounding box */ Lib3dsCamera *camera = lib3ds_camera_new("Camera_X"); camera->target[0] = cx; camera->target[1] = cy; camera->target[2] = cz; memcpy(camera->position, camera->target, sizeof(camera->position)); camera->position[0] = bmax[0] + 1.5 * MAX(sy,sz); camera->near_range = ( camera->position[0] - bmax[0] ) * .5; camera->far_range = ( camera->position[0] - bmin[0] ) * 2; lib3ds_file_insert_camera(file, camera); /* Since lib3ds considers +Y to be into the screen, we'll put * this camera on the -Y axis, looking in the +Y direction. */ camera = lib3ds_camera_new("Camera_Y"); camera->target[0] = cx; camera->target[1] = cy; camera->target[2] = cz; memcpy(camera->position, camera->target, sizeof(camera->position)); camera->position[1] = bmin[1] - 1.5 * MAX(sx,sz); camera->near_range = ( bmin[1] - camera->position[1] ) * .5; camera->far_range = ( bmax[1] - camera->position[1] ) * 2; lib3ds_file_insert_camera(file, camera); camera = lib3ds_camera_new("Camera_Z"); camera->target[0] = cx; camera->target[1] = cy; camera->target[2] = cz; memcpy(camera->position, camera->target, sizeof(camera->position)); camera->position[2] = bmax[2] + 1.5 * MAX(sx,sy); camera->near_range = ( camera->position[2] - bmax[2] ) * .5; camera->far_range = ( camera->position[2] - bmin[2] ) * 2; lib3ds_file_insert_camera(file, camera); camera = lib3ds_camera_new("Camera_ISO"); camera->target[0] = cx; camera->target[1] = cy; camera->target[2] = cz; memcpy(camera->position, camera->target, sizeof(camera->position)); camera->position[0] = bmax[0] + .75 * size; camera->position[1] = bmin[1] - .75 * size; camera->position[2] = bmax[2] + .75 * size; camera->near_range = ( camera->position[0] - bmax[0] ) * .5; camera->far_range = ( camera->position[0] - bmin[0] ) * 3; lib3ds_file_insert_camera(file, camera); } /* No lights in the file? Add some. */ if (file->lights == NULL) { Lib3dsLight *light; light = lib3ds_light_new("light0"); light->spot_light = 0; light->see_cone = 0; light->color[0] = light->color[1] = light->color[2] = .6; light->position[0] = cx + size * .75; light->position[1] = cy - size * 1.; light->position[2] = cz + size * 1.5; light->position[3] = 0.; light->outer_range = 100; light->inner_range = 10; light->multiplier = 1; lib3ds_file_insert_light(file, light); light = lib3ds_light_new("light1"); light->spot_light = 0; light->see_cone = 0; light->color[0] = light->color[1] = light->color[2] = .3; light->position[0] = cx - size; light->position[1] = cy - size; light->position[2] = cz + size * .75; light->position[3] = 0.; light->outer_range = 100; light->inner_range = 10; light->multiplier = 1; lib3ds_file_insert_light(file, light); light = lib3ds_light_new("light2"); light->spot_light = 0; light->see_cone = 0; light->color[0] = light->color[1] = light->color[2] = .3; light->position[0] = cx; light->position[1] = cy + size; light->position[2] = cz + size; light->position[3] = 0.; light->outer_range = 100; light->inner_range = 10; light->multiplier = 1; lib3ds_file_insert_light(file, light); } if (!file->cameras) { fputs("3dsplayer: Error: No Camera found.\n", stderr); lib3ds_file_free(file); file=0; exit(1); } if (!camera) { camera=file->cameras->name; } lib3ds_file_eval(file,0.); }
static Lib3dsBool named_object_read(Lib3dsFile *file, Lib3dsIo *io) { Lib3dsChunk c; char name[64]; Lib3dsWord chunk; Lib3dsMesh *mesh = NULL; Lib3dsCamera *camera = NULL; Lib3dsLight *light = NULL; Lib3dsDword object_flags; if (!lib3ds_chunk_read_start(&c, LIB3DS_NAMED_OBJECT, io)) { return(LIB3DS_FALSE); } if (!lib3ds_io_read_string(io, name, 64)) { return(LIB3DS_FALSE); } lib3ds_chunk_dump_info(" NAME=%s", name); lib3ds_chunk_read_tell(&c, io); object_flags = 0; while ((chunk=lib3ds_chunk_read_next(&c, io))!=0) { switch (chunk) { case LIB3DS_N_TRI_OBJECT: { mesh=lib3ds_mesh_new(name); if (!mesh) { return(LIB3DS_FALSE); } lib3ds_chunk_read_reset(&c, io); if (!lib3ds_mesh_read(mesh, io)) { return(LIB3DS_FALSE); } lib3ds_file_insert_mesh(file, mesh); } break; case LIB3DS_N_CAMERA: { camera=lib3ds_camera_new(name); if (!camera) { return(LIB3DS_FALSE); } lib3ds_chunk_read_reset(&c, io); if (!lib3ds_camera_read(camera, io)) { return(LIB3DS_FALSE); } lib3ds_file_insert_camera(file, camera); } break; case LIB3DS_N_DIRECT_LIGHT: { light=lib3ds_light_new(name); if (!light) { return(LIB3DS_FALSE); } lib3ds_chunk_read_reset(&c, io); if (!lib3ds_light_read(light, io)) { return(LIB3DS_FALSE); } lib3ds_file_insert_light(file, light); } break; case LIB3DS_OBJ_HIDDEN: object_flags |= LIB3DS_OBJECT_HIDDEN; break; case LIB3DS_OBJ_DOESNT_CAST: object_flags |= LIB3DS_OBJECT_DOESNT_CAST; break; case LIB3DS_OBJ_VIS_LOFTER: object_flags |= LIB3DS_OBJECT_VIS_LOFTER; break; case LIB3DS_OBJ_MATTE: object_flags |= LIB3DS_OBJECT_MATTE; break; case LIB3DS_OBJ_DONT_RCVSHADOW: object_flags |= LIB3DS_OBJECT_DONT_RCVSHADOW; break; case LIB3DS_OBJ_FAST: object_flags |= LIB3DS_OBJECT_FAST; break; case LIB3DS_OBJ_FROZEN: object_flags |= LIB3DS_OBJECT_FROZEN; break; default: lib3ds_chunk_unknown(chunk); } } if (mesh) mesh->object_flags = object_flags; if (camera) camera->object_flags = object_flags; if (light) light->object_flags = object_flags; lib3ds_chunk_read_end(&c, io); return(LIB3DS_TRUE); }
/*! * Load the model from .3ds file. */ static void load_model(void) { file = lib3ds_file_open(filepath); if (!file) { puts("3dsplayer: Error: Loading 3DS file failed.\n"); exit(1); } /* No nodes? Fabricate nodes to display all the meshes. */ if (!file->nodes) { Lib3dsNode *node; int i; for (i = 0; i < file->nmeshes; ++i) { Lib3dsMesh *mesh = file->meshes[i]; node = lib3ds_node_new(LIB3DS_NODE_MESH_INSTANCE); strcpy(node->name, mesh->name); lib3ds_file_insert_node(file, node, NULL); } } lib3ds_file_eval(file, 0.0f); lib3ds_file_bounding_box_of_nodes(file, 1, 0, 0, bmin, bmax, NULL); sx = bmax[0] - bmin[0]; sy = bmax[1] - bmin[1]; sz = bmax[2] - bmin[2]; size = MAX(sx, sy); size = MAX(size, sz); cx = (bmin[0] + bmax[0]) / 2; cy = (bmin[1] + bmax[1]) / 2; cz = (bmin[2] + bmax[2]) / 2; /* No cameras in the file? Add four */ if (!file->ncameras) { /* Add some cameras that encompass the bounding box */ Lib3dsCamera *camera = lib3ds_camera_new("Camera_X"); camera->target[0] = cx; camera->target[1] = cy; camera->target[2] = cz; memcpy(camera->position, camera->target, sizeof(camera->position)); camera->position[0] = bmax[0] + 1.5 * MAX(sy, sz); camera->near_range = (camera->position[0] - bmax[0]) * .5; camera->far_range = (camera->position[0] - bmin[0]) * 2; lib3ds_file_insert_camera(file, camera, -1); /* Since lib3ds considers +Y to be into the screen, we'll put * this camera on the -Y axis, looking in the +Y direction. */ camera = lib3ds_camera_new("Camera_Y"); camera->target[0] = cx; camera->target[1] = cy; camera->target[2] = cz; memcpy(camera->position, camera->target, sizeof(camera->position)); camera->position[1] = bmin[1] - 1.5 * MAX(sx, sz); camera->near_range = (bmin[1] - camera->position[1]) * .5; camera->far_range = (bmax[1] - camera->position[1]) * 2; lib3ds_file_insert_camera(file, camera, -1); camera = lib3ds_camera_new("Camera_Z"); camera->target[0] = cx; camera->target[1] = cy; camera->target[2] = cz; memcpy(camera->position, camera->target, sizeof(camera->position)); camera->position[2] = bmax[2] + 1.5 * MAX(sx, sy); camera->near_range = (camera->position[2] - bmax[2]) * .5; camera->far_range = (camera->position[2] - bmin[2]) * 2; lib3ds_file_insert_camera(file, camera, -1); camera = lib3ds_camera_new("Camera_ISO"); camera->target[0] = cx; camera->target[1] = cy; camera->target[2] = cz; memcpy(camera->position, camera->target, sizeof(camera->position)); camera->position[0] = bmax[0] + .75 * size; camera->position[1] = bmin[1] - .75 * size; camera->position[2] = bmax[2] + .75 * size; camera->near_range = (camera->position[0] - bmax[0]) * .5; camera->far_range = (camera->position[0] - bmin[0]) * 3; lib3ds_file_insert_camera(file, camera, -1); } /* No lights in the file? Add some. */ if (!file->nlights) { Lib3dsLight *light; light = lib3ds_light_new("light0"); light->spot_light = 0; light->see_cone = 0; light->color[0] = light->color[1] = light->color[2] = .6; light->position[0] = cx + size * .75; light->position[1] = cy - size * 1.; light->position[2] = cz + size * 1.5; light->position[3] = 0.; light->outer_range = 100; light->inner_range = 10; light->multiplier = 1; lib3ds_file_insert_light(file, light, -1); light = lib3ds_light_new("light1"); light->spot_light = 0; light->see_cone = 0; light->color[0] = light->color[1] = light->color[2] = .3; light->position[0] = cx - size; light->position[1] = cy - size; light->position[2] = cz + size * .75; light->position[3] = 0.; light->outer_range = 100; light->inner_range = 10; light->multiplier = 1; lib3ds_file_insert_light(file, light, -1); light = lib3ds_light_new("light2"); light->spot_light = 0; light->see_cone = 0; light->color[0] = light->color[1] = light->color[2] = .3; light->position[0] = cx; light->position[1] = cy + size; light->position[2] = cz + size; light->position[3] = 0.; light->outer_range = 100; light->inner_range = 10; light->multiplier = 1; lib3ds_file_insert_light(file, light, -1); } camera = file->cameras[0]->name; lib3ds_file_eval(file, 0); }
static void named_object_read(Lib3dsFile *file, Lib3dsIo *io) { Lib3dsChunk c; char name[64]; uint16_t chunk; Lib3dsMesh *mesh = NULL; Lib3dsCamera *camera = NULL; Lib3dsLight *light = NULL; uint32_t object_flags; lib3ds_chunk_read_start(&c, CHK_NAMED_OBJECT, io); lib3ds_io_read_string(io, name, 64); lib3ds_io_log(io, LIB3DS_LOG_INFO, " NAME=%s", name); lib3ds_chunk_read_tell(&c, io); object_flags = 0; while ((chunk = lib3ds_chunk_read_next(&c, io)) != 0) { switch (chunk) { case CHK_N_TRI_OBJECT: { mesh = lib3ds_mesh_new(name); lib3ds_file_insert_mesh(file, mesh, -1); lib3ds_chunk_read_reset(&c, io); lib3ds_mesh_read(file, mesh, io); break; } case CHK_N_CAMERA: { camera = lib3ds_camera_new(name); lib3ds_file_insert_camera(file, camera, -1); lib3ds_chunk_read_reset(&c, io); lib3ds_camera_read(camera, io); break; } case CHK_N_DIRECT_LIGHT: { light = lib3ds_light_new(name); lib3ds_file_insert_light(file, light, -1); lib3ds_chunk_read_reset(&c, io); lib3ds_light_read(light, io); break; } case CHK_OBJ_HIDDEN: object_flags |= LIB3DS_OBJECT_HIDDEN; break; case CHK_OBJ_DOESNT_CAST: object_flags |= LIB3DS_OBJECT_DOESNT_CAST; break; case CHK_OBJ_VIS_LOFTER: object_flags |= LIB3DS_OBJECT_VIS_LOFTER; break; case CHK_OBJ_MATTE: object_flags |= LIB3DS_OBJECT_MATTE; break; case CHK_OBJ_DONT_RCVSHADOW: object_flags |= LIB3DS_OBJECT_DONT_RCVSHADOW; break; case CHK_OBJ_FAST: object_flags |= LIB3DS_OBJECT_FAST; break; case CHK_OBJ_FROZEN: object_flags |= LIB3DS_OBJECT_FROZEN; break; default: lib3ds_chunk_unknown(chunk, io); } } if (mesh) mesh->object_flags = object_flags; if (camera) camera->object_flags = object_flags; if (light) light->object_flags = object_flags; lib3ds_chunk_read_end(&c, io); }
int main(int argc, char **argv) { Lib3dsFile *file = lib3ds_file_new(); file->frames = 360; { Lib3dsMaterial *mat = lib3ds_material_new("c_tex"); lib3ds_file_insert_material(file, mat, -1); strcpy(mat->texture1_map.name, "cube.tga"); mat->texture1_map.percent = 1.0; mat = lib3ds_material_new("c_red"); lib3ds_file_insert_material(file, mat, -1); mat->diffuse[0] = 1.0; mat->diffuse[1] = 0.0; mat->diffuse[2] = 0.0; mat = lib3ds_material_new("c_blue"); lib3ds_file_insert_material(file, mat, -1); mat->diffuse[0] = 0.0; mat->diffuse[1] = 0.0; mat->diffuse[2] = 1.0; } { int i, j; Lib3dsMesh *mesh = lib3ds_mesh_new("cube"); Lib3dsMeshInstanceNode *inst; lib3ds_file_insert_mesh(file, mesh, -1); lib3ds_mesh_resize_vertices(mesh, 8, 1, 0); for (i = 0; i < 8; ++i) { lib3ds_vector_copy(mesh->vertices[i], g_vertices[i]); mesh->texcos[i][0] = g_texcoords[i][0]; mesh->texcos[i][1] = g_texcoords[i][1]; } lib3ds_mesh_resize_faces(mesh, 12); for (i = 0; i < 12; ++i) { for (j = 0; j < 3; ++j) { mesh->faces[i].index[j] = g_indices[i][j]; } } for (i = 0; i < 8; ++i) { mesh->faces[i].material = 0; } for (i = 0; i < 2; ++i) { mesh->faces[8+i].material = 1; } for (i = 0; i < 2; ++i) { mesh->faces[10+i].material = 2; } inst = lib3ds_node_new_mesh_instance(mesh, "01", NULL, NULL, NULL); lib3ds_file_append_node(file, (Lib3dsNode*)inst, NULL); } { Lib3dsCamera *camera; Lib3dsCameraNode *n; Lib3dsTargetNode *t; int i; camera = lib3ds_camera_new("camera01"); lib3ds_file_insert_camera(file, camera, -1); lib3ds_vector_make(camera->position, 0.0, -100, 0.0); lib3ds_vector_make(camera->target, 0.0, 0.0, 0.0); n = lib3ds_node_new_camera(camera); t = lib3ds_node_new_camera_target(camera); lib3ds_file_append_node(file, (Lib3dsNode*)n, NULL); lib3ds_file_append_node(file, (Lib3dsNode*)t, NULL); lib3ds_track_resize(&n->pos_track, 37); for (i = 0; i <= 36; i++) { n->pos_track.keys[i].frame = 10 * i; lib3ds_vector_make(n->pos_track.keys[i].value, (float)(100.0 * cos(2 * M_PI * i / 36.0)), (float)(100.0 * sin(2 * M_PI * i / 36.0)), 50.0 ); } } if (!lib3ds_file_save(file, "cube.3ds")) { fprintf(stderr, "ERROR: Saving 3ds file failed!\n"); } lib3ds_file_free(file); }
// TODO: Build own exporter class void objectExporter::on_buttonBox_accepted() { QString fileName = QFileDialog::getSaveFileName(gloParent, "Save 3ds Object", ".", "3D Object (*.3ds)", 0, 0); QList<trackHandler*> trackList = gloParent->getTrackList(); trackHandler* curTrack = trackList[ui->trackBox->currentIndex()]; trackMesh* mesh = curTrack->mMesh; QVector<float> *vertices = new QVector<float>(); QVector<unsigned int> *indices = new QVector<unsigned int>(); QVector<unsigned int> *borders = new QVector<unsigned int>(); Lib3dsFile *file = lib3ds_file_new(); file->frames = 360; { Lib3dsMaterial* mat = lib3ds_material_new("coaster"); lib3ds_file_insert_material(file, mat, -1); mat->diffuse[0] = curTrack->trackColors[0].red()/255.f; mat->diffuse[1] = curTrack->trackColors[0].green()/255.f; mat->diffuse[2] = curTrack->trackColors[0].blue()/255.f; } { for(int section = 0; section < curTrack->trackData->lSections.size(); ++section) { vertices->clear(); indices->clear(); borders->clear(); mesh->build3ds(section, vertices, indices, borders); float* fvertices = new float[vertices->size()]; for(int i = 0; i < vertices->size()/3; ++i) { fvertices[3*i+0] = vertices->at(3*i+0); fvertices[3*i+1] = -vertices->at(3*i+2); fvertices[3*i+2] = vertices->at(3*i+1); //exportScreen->doFastExport(); } for(int subIndex = 0; subIndex < borders->size()-2; subIndex+= 2) { int fromVIndex = borders->at(subIndex)/3; int toVIndex = borders->at(subIndex+2)/3; int fromIIndex = borders->at(subIndex+1)/3; int toIIndex = borders->at(subIndex+3)/3; int i, j; QString name = QString::number(section).append(QString("_").append(QString::number(subIndex/2))); Lib3dsMesh *mesh = lib3ds_mesh_new(name.toLocal8Bit().data()); Lib3dsMeshInstanceNode *inst; lib3ds_file_insert_mesh(file, mesh, -1); lib3ds_mesh_resize_vertices(mesh, toVIndex-fromVIndex, 1, 0); for (i = 0; i < toVIndex-fromVIndex; ++i) { lib3ds_vector_copy(mesh->vertices[i], &fvertices[(i+fromVIndex)*3]); mesh->texcos[i][0] = 0.f; mesh->texcos[i][1] = 0.f; } lib3ds_mesh_resize_faces(mesh, toIIndex-fromIIndex); for (i = 0; i < toIIndex-fromIIndex; ++i) { for (j = 0; j < 3; ++j) { mesh->faces[i].index[j] = indices->at(3*(i+fromIIndex)+j)-fromVIndex; mesh->faces[i].material = 0; } } inst = lib3ds_node_new_mesh_instance(mesh, name.toLocal8Bit().data(), NULL, NULL, NULL); lib3ds_file_append_node(file, (Lib3dsNode*)inst, NULL); } delete[] fvertices; } } { Lib3dsCamera *camera; Lib3dsCameraNode *n; Lib3dsTargetNode *t; int i; camera = lib3ds_camera_new("camera01"); lib3ds_file_insert_camera(file, camera, -1); lib3ds_vector_make(camera->position, 0.0, -100, 0.0); lib3ds_vector_make(camera->target, 0.0, 0.0, 0.0); n = lib3ds_node_new_camera(camera); t = lib3ds_node_new_camera_target(camera); lib3ds_file_append_node(file, (Lib3dsNode*)n, NULL); lib3ds_file_append_node(file, (Lib3dsNode*)t, NULL); lib3ds_track_resize(&n->pos_track, 37); for (i = 0; i <= 36; i++) { n->pos_track.keys[i].frame = 10 * i; lib3ds_vector_make(n->pos_track.keys[i].value, (float)(100.0 * cos(2 * F_PI * i / 36.0)), (float)(100.0 * sin(2 * F_PI * i / 36.0)), 50.0 ); } } if (!lib3ds_file_save(file, fileName.toLocal8Bit().data())) { qDebug("ERROR: Saving 3ds file failed!\n"); } lib3ds_file_free(file); delete indices; delete vertices; }