def add_scene_item(scene, name, proxy, view): hasNormal = False hasColor = False colors = {} representation = {} rep = simple.GetRepresentation(proxy, view) # Skip hidden object or volume if not rep.Visibility or rep.Representation == 'Volume': return for prop in ['Representation']: representation[prop] = rep.GetProperty(prop).GetData() pdInfo = proxy.GetPointDataInformation() numberOfPointArrays = pdInfo.GetNumberOfArrays() for idx in range(numberOfPointArrays): array = pdInfo.GetArray(idx) rangeValues = array.GetRange(-1) if array.Name == 'Normals': hasNormal = True if array.Name not in ['vtkValidPointMask', 'Normals']: hasColor = True if rangeValues[0] == rangeValues[1]: colors[array.Name] = {'constant': rangeValues[0]} else: colors[array.Name] = { 'location': 'POINT_DATA', 'range': [i for i in rangeValues] } # Get information about cell data arrays cdInfo = proxy.GetCellDataInformation() numberOfCellArrays = cdInfo.GetNumberOfArrays() for idx in range(numberOfCellArrays): array = cdInfo.GetArray(idx) hasColor = True colors[array.Name] = { 'location': 'CELL_DATA', 'range': array.GetRange(-1) } # Make sure Normals are available if lighting by normals source = proxy if not hasColor or rep.Representation == 'Outline': colors = {'solid': {'constant': 0}} elif 'normal' in scene['light'] and not hasNormal: rep.Visibility = 0 surface = simple.ExtractSurface(Input=proxy) surfaceWithNormals = simple.GenerateSurfaceNormals(Input=surface) source = surfaceWithNormals scene['scene'].append({ 'name': name, 'source': source, 'colors': colors, 'representation': representation })
} } } # ----------------------------------------------------------------------------- from paraview import simple from paraview.web.dataset_builder import * # ----------------------------------------------------------------------------- # Pipeline creation # ----------------------------------------------------------------------------- core = simple.OpenDataFile(earthCore) coreSurface = simple.ExtractSurface(Input=core) coreWithNormals = simple.GenerateSurfaceNormals(Input=coreSurface) reader = simple.OpenDataFile(inputFile % time[0]) reader.CellArrayStatus = ['temperature', 'salinity'] dataCleanUp = simple.Threshold(Input=reader, Scalars=['CELLS', 'temperature'], ThresholdRange=[-1000.0, 50.0]) dataToPoints = simple.CellDatatoPointData(Input=dataCleanUp) sceneDescription = { 'size': [500, 500], 'light': ['intensity', 'normal'], 'camera': { 'CameraViewUp': [0.0, 0.0, 1.0], 'CameraPosition': [107823.5, -28000000, -44044.25],
# ----------------------------------------------------------------------------- from paraview import simple from paraview.web.dataset_builder import * # ----------------------------------------------------------------------------- # Pipeline creation # ----------------------------------------------------------------------------- reader = simple.OpenDataFile(inputFile) reader.PointVariables = ['Temp', 'V', 'Pres', 'AsH3', 'GaMe3', 'CH4', 'H2'] clip = simple.Clip(Input=reader) clip.ClipType.Normal = [0.0, 1.0, 0.0] clipSurface = simple.ExtractSurface(Input=clip) clipWithNormals = simple.GenerateSurfaceNormals(Input=clipSurface) streamLines = simple.StreamTracer(Input=reader, SeedType="High Resolution Line Source", Vectors=['POINTS', 'V'], MaximumStreamlineLength=20.16) streamLines.SeedType.Point2 = [5.75, 5.75, 10.15999984741211] streamLines.SeedType.Point1 = [-5.75, -5.75, -10.0] streamTubes = simple.Tube(Input=streamLines, Radius=0.2) streamSurface = simple.ExtractSurface(Input=streamTubes) streamWithNormals = simple.GenerateSurfaceNormals(Input=streamSurface) sceneDescription = { 'size': [500, 500], 'light': ['intensity', 'normal'], # 'normal' 'camera': {
def render_frames( scene, frames_dir=None, frame_window=None, render_missing_frames=False, save_state_to_file=None, no_render=False, show_preview=False, show_progress=False, job_id=None, ): # Validate scene if scene["View"]["ViewSize"][0] % 16 != 0: logger.warning( "The view width should be a multiple of 16 to be compatible with" " QuickTime.") if scene["View"]["ViewSize"][1] % 2 != 0: logger.warning( "The view height should be even to be compatible with QuickTime.") render_start_time = time.time() # Setup layout layout = pv.CreateLayout("Layout") # Setup view if "Background" in scene["View"]: bg_config = scene["View"]["Background"] del scene["View"]["Background"] if isinstance(bg_config, list): if isinstance(bg_config[0], list): assert len(bg_config) == 2, ( "When 'Background' is a list of colors, it must have 2" " entries.") bg_config = dict( BackgroundColorMode="Gradient", Background=parse_as.color(bg_config[0]), Background2=parse_as.color(bg_config[1]), ) else: bg_config = dict( BackgroundColorMode="Single Color", Background=parse_as.color(bg_config), ) bg_config["UseColorPaletteForBackground"] = 0 scene["View"].update(bg_config) bg_config = None else: bg_config = None view = pv.CreateRenderView(**scene["View"]) pv.AssignViewToLayout(view=view, layout=layout, hint=0) # Set spherical background texture if bg_config is not None: bg_config["BackgroundColorMode"] = "Texture" skybox_datasource = bg_config["Datasource"] del bg_config["Datasource"] background_texture = pvserver.rendering.ImageTexture( FileName=parse_as.path(scene["Datasources"][skybox_datasource])) background_sphere = pv.Sphere(Radius=bg_config["Radius"], ThetaResolution=100, PhiResolution=100) background_texture_map = pv.TextureMaptoSphere(Input=background_sphere) pv.Show( background_texture_map, view, Texture=background_texture, BackfaceRepresentation="Cull Frontface", Ambient=1.0, ) # Load the waveform data file waveform_h5file, waveform_subfile = parse_as.file_and_subfile( scene["Datasources"]["Waveform"]) waveform_data = WaveformDataReader(FileName=waveform_h5file, Subfile=waveform_subfile) pv.UpdatePipeline() # Generate volume data from the waveform. Also sets the available time range. # TODO: Pull KeepEveryNthTimestep out of datasource waveform_to_volume_configs = scene["WaveformToVolume"] if isinstance(waveform_to_volume_configs, dict): waveform_to_volume_configs = [{ "Object": waveform_to_volume_configs, }] if "VolumeRepresentation" in scene: waveform_to_volume_configs[0]["VolumeRepresentation"] = scene[ "VolumeRepresentation"] waveform_to_volume_objects = [] for waveform_to_volume_config in waveform_to_volume_configs: volume_data = WaveformToVolume( WaveformData=waveform_data, SwshCacheDirectory=parse_as.path( scene["Datasources"]["SwshCache"]), **waveform_to_volume_config["Object"], ) if "Modes" in waveform_to_volume_config["Object"]: volume_data.Modes = waveform_to_volume_config["Object"]["Modes"] if "Polarizations" in waveform_to_volume_config["Object"]: volume_data.Polarizations = waveform_to_volume_config["Object"][ "Polarizations"] waveform_to_volume_objects.append(volume_data) # Compute timing and frames information time_range_in_M = ( volume_data.TimestepValues[0], volume_data.TimestepValues[-1], ) logger.debug(f"Full available data time range: {time_range_in_M} (in M)") if "FreezeTime" in scene["Animation"]: frozen_time = scene["Animation"]["FreezeTime"] logger.info(f"Freezing time at {frozen_time}.") view.ViewTime = frozen_time animation = None else: if "Crop" in scene["Animation"]: time_range_in_M = scene["Animation"]["Crop"] logger.debug(f"Cropping time range to {time_range_in_M} (in M).") animation_speed = scene["Animation"]["Speed"] frame_rate = scene["Animation"]["FrameRate"] num_frames = animate.num_frames( max_animation_length=time_range_in_M[1] - time_range_in_M[0], animation_speed=animation_speed, frame_rate=frame_rate, ) animation_length_in_seconds = num_frames / frame_rate animation_length_in_M = animation_length_in_seconds * animation_speed time_per_frame_in_M = animation_length_in_M / num_frames logger.info(f"Rendering {animation_length_in_seconds:.2f}s movie with" f" {num_frames} frames ({frame_rate} FPS or" f" {animation_speed:.2e} M/s or" f" {time_per_frame_in_M:.2e} M/frame)...") if frame_window is not None: animation_window_num_frames = frame_window[1] - frame_window[0] animation_window_time_range = ( time_range_in_M[0] + frame_window[0] * time_per_frame_in_M, time_range_in_M[0] + (frame_window[1] - 1) * time_per_frame_in_M, ) logger.info( f"Restricting rendering to {animation_window_num_frames} frames" f" (numbers {frame_window[0]} to {frame_window[1] - 1}).") else: animation_window_num_frames = num_frames animation_window_time_range = time_range_in_M frame_window = (0, num_frames) # Setup animation so that sources can retrieve the `UPDATE_TIME_STEP` animation = pv.GetAnimationScene() # animation.UpdateAnimationUsingDataTimeSteps() # Since the data can be evaluated at arbitrary times we define the time steps # here by setting the number of frames within the full range animation.PlayMode = "Sequence" animation.StartTime = animation_window_time_range[0] animation.EndTime = animation_window_time_range[1] animation.NumberOfFrames = animation_window_num_frames logger.debug( f"Animating from scene time {animation.StartTime} to" f" {animation.EndTime} in {animation.NumberOfFrames} frames.") def scene_time_from_real(real_time): return (real_time / animation_length_in_seconds * animation_length_in_M) # For some reason the keyframe time for animations is expected to be within # (0, 1) so we need to transform back and forth from this "normalized" time def scene_time_from_normalized(normalized_time): return animation.StartTime + normalized_time * ( animation.EndTime - animation.StartTime) def normalized_time_from_scene(scene_time): return (scene_time - animation.StartTime) / (animation.EndTime - animation.StartTime) # Setup progress measuring already here so volume data computing for # initial frame is measured if show_progress and not no_render: logging.getLogger().handlers = [TqdmLoggingHandler()] animation_window_frame_range = tqdm.trange( animation_window_num_frames, desc="Rendering", unit="frame", miniters=1, position=job_id, ) else: animation_window_frame_range = range(animation_window_num_frames) # Set the initial time step animation.GoToFirst() # Display the volume data. This will trigger computing the volume data at the # current time step. for volume_data, waveform_to_volume_config in zip( waveform_to_volume_objects, waveform_to_volume_configs): vol_repr = (waveform_to_volume_config["VolumeRepresentation"] if "VolumeRepresentation" in waveform_to_volume_config else {}) volume_color_by = config_color.extract_color_by(vol_repr) if (vol_repr["VolumeRenderingMode"] == "GPU Based" and len(volume_color_by) > 2): logger.warning( "The 'GPU Based' volume renderer doesn't support multiple" " components.") volume = pv.Show(volume_data, view, **vol_repr) pv.ColorBy(volume, value=volume_color_by) if "Slices" in scene: for slice_config in scene["Slices"]: slice_obj_config = slice_config.get("Object", {}) slice = pv.Slice(Input=volume_data) slice.SliceType = "Plane" slice.SliceOffsetValues = [0.0] slice.SliceType.Origin = slice_obj_config.get( "Origin", [0.0, 0.0, -0.3]) slice.SliceType.Normal = slice_obj_config.get( "Normal", [0.0, 0.0, 1.0]) slice_rep = pv.Show(slice, view, **slice_config.get("Representation", {})) pv.ColorBy(slice_rep, value=volume_color_by) # Display the time if "TimeAnnotation" in scene: time_annotation = pv.AnnotateTimeFilter(volume_data, **scene["TimeAnnotation"]) pv.Show(time_annotation, view, **scene["TimeAnnotationRepresentation"]) # Add spheres if "Spheres" in scene: for sphere_config in scene["Spheres"]: sphere = pv.Sphere(**sphere_config["Object"]) pv.Show(sphere, view, **sphere_config["Representation"]) # Add trajectories and objects that follow them if "Trajectories" in scene: for trajectory_config in scene["Trajectories"]: trajectory_name = trajectory_config["Name"] radial_scale = (trajectory_config["RadialScale"] if "RadialScale" in trajectory_config else 1.0) # Load the trajectory data traj_data_reader = TrajectoryDataReader( RadialScale=radial_scale, **scene["Datasources"]["Trajectories"][trajectory_name], ) # Make sure the data is loaded so we can retrieve timesteps. # TODO: This should be fixed in `TrajectoryDataReader` by # communicating time range info down the pipeline, but we had issues # with that (see also `WaveformDataReader`). traj_data_reader.UpdatePipeline() if "Objects" in trajectory_config: with animate.restore_animation_state(animation): follow_traj = FollowTrajectory( TrajectoryData=traj_data_reader) for traj_obj_config in trajectory_config["Objects"]: for traj_obj_key in traj_obj_config: if traj_obj_key in [ "Representation", "Visibility", "TimeShift", "Glyph", ]: continue traj_obj_type = getattr(pv, traj_obj_key) traj_obj_glyph = traj_obj_type( **traj_obj_config[traj_obj_key]) follow_traj.UpdatePipeline() traj_obj = pv.Glyph(Input=follow_traj, GlyphType=traj_obj_glyph) # Can't set this in the constructor for some reason traj_obj.ScaleFactor = 1.0 for glyph_property in (traj_obj_config["Glyph"] if "Glyph" in traj_obj_config else []): setattr( traj_obj, glyph_property, traj_obj_config["Glyph"][glyph_property], ) traj_obj.UpdatePipeline() if "TimeShift" in traj_obj_config: traj_obj = animate.apply_time_shift( traj_obj, traj_obj_config["TimeShift"]) pv.Show(traj_obj, view, **traj_obj_config["Representation"]) if "Visibility" in traj_obj_config: animate.apply_visibility( traj_obj, traj_obj_config["Visibility"], normalized_time_from_scene, scene_time_from_real, ) if "Tail" in trajectory_config: with animate.restore_animation_state(animation): traj_tail = TrajectoryTail(TrajectoryData=traj_data_reader) if "TimeShift" in trajectory_config: traj_tail = animate.apply_time_shift( traj_tail, trajectory_config["TimeShift"]) tail_config = trajectory_config["Tail"] traj_color_by = config_color.extract_color_by(tail_config) if "Visibility" in tail_config: tail_visibility_config = tail_config["Visibility"] del tail_config["Visibility"] else: tail_visibility_config = None tail_rep = pv.Show(traj_tail, view, **tail_config) pv.ColorBy(tail_rep, value=traj_color_by) if tail_visibility_config is not None: animate.apply_visibility( traj_tail, tail_visibility_config, normalized_time_from_scene=normalized_time_from_scene, scene_time_from_real=scene_time_from_real, ) if "Move" in trajectory_config: move_config = trajectory_config["Move"] logger.debug( f"Animating '{move_config['guiName']}' along trajectory.") with h5py.File(trajectory_file, "r") as traj_data_file: trajectory_data = np.array( traj_data_file[trajectory_subfile]) if radial_scale != 1.0: trajectory_data[:, 1:] *= radial_scale logger.debug(f"Trajectory data shape: {trajectory_data.shape}") animate.follow_path( gui_name=move_config["guiName"], trajectory_data=trajectory_data, num_keyframes=move_config["NumKeyframes"], scene_time_range=time_range_in_M, normalized_time_from_scene=normalized_time_from_scene, ) # Add non-spherical horizon shapes (instead of spherical objects following # trajectories) if "Horizons" in scene: for horizon_config in scene["Horizons"]: with animate.restore_animation_state(animation): horizon = pv.PVDReader(FileName=scene["Datasources"] ["Horizons"][horizon_config["Name"]]) if horizon_config.get("InterpolateTime", False): horizon = pv.TemporalInterpolator( Input=horizon, DiscreteTimeStepInterval=0) if "TimeShift" in horizon_config: horizon = animate.apply_time_shift(horizon, horizon_config["TimeShift"], animation) # Try to make horizon surfaces smooth. At low angular resoluton # they still show artifacts, so perhaps more can be done. horizon = pv.ExtractSurface(Input=horizon) horizon = pv.GenerateSurfaceNormals(Input=horizon) horizon_rep_config = horizon_config.get("Representation", {}) if "Representation" not in horizon_rep_config: horizon_rep_config["Representation"] = "Surface" if "AmbientColor" not in horizon_rep_config: horizon_rep_config["AmbientColor"] = [0.0, 0.0, 0.0] if "DiffuseColor" not in horizon_rep_config: horizon_rep_config["DiffuseColor"] = [0.0, 0.0, 0.0] if "Specular" not in horizon_rep_config: horizon_rep_config["Specular"] = 0.2 if "SpecularPower" not in horizon_rep_config: horizon_rep_config["SpecularPower"] = 10 if "SpecularColor" not in horizon_rep_config: horizon_rep_config["SpecularColor"] = [1.0, 1.0, 1.0] if "ColorBy" in horizon_rep_config: horizon_color_by = config_color.extract_color_by( horizon_rep_config) else: horizon_color_by = None horizon_rep = pv.Show(horizon, view, **horizon_rep_config) if horizon_color_by is not None: pv.ColorBy(horizon_rep, value=horizon_color_by) # Animate visibility if "Visibility" in horizon_config: animate.apply_visibility( horizon, horizon_config["Visibility"], normalized_time_from_scene=normalized_time_from_scene, scene_time_from_real=scene_time_from_real, ) if "Contours" in horizon_config: for contour_config in horizon_config["Contours"]: contour = pv.Contour(Input=horizon, **contour_config["Object"]) contour_rep = pv.Show(contour, view, **contour_config["Representation"]) pv.ColorBy(contour_rep, None) if "Visibility" in horizon_config: animate.apply_visibility( contour, horizon_config["Visibility"], normalized_time_from_scene= normalized_time_from_scene, scene_time_from_real=scene_time_from_real, ) # Configure transfer functions if "TransferFunctions" in scene: for tf_config in scene["TransferFunctions"]: colored_field = tf_config["Field"] transfer_fctn = pv.GetColorTransferFunction(colored_field) opacity_fctn = pv.GetOpacityTransferFunction(colored_field) tf.configure_transfer_function(transfer_fctn, opacity_fctn, tf_config["TransferFunction"]) # Save state file before configuring camera keyframes. # TODO: Make camera keyframes work with statefile if save_state_to_file is not None: pv.SaveState(save_state_to_file + ".pvsm") # Camera shots # TODO: Make this work with freezing time while the camera is swinging if animation is None: for i, shot in enumerate(scene["CameraShots"]): if (i == len(scene["CameraShots"]) - 1 or (shot["Time"] if "Time" in shot else 0.0) >= view.ViewTime): camera_motion.apply(shot) break else: camera_motion.apply_swings( scene["CameraShots"], scene_time_range=time_range_in_M, scene_time_from_real=scene_time_from_real, normalized_time_from_scene=normalized_time_from_scene, ) # Report time if animation is not None: report_time_cue = pv.PythonAnimationCue() report_time_cue.Script = """ def start_cue(self): pass def tick(self): import paraview.simple as pv import logging logger = logging.getLogger('Animation') scene_time = pv.GetActiveView().ViewTime logger.info(f"Scene time: {scene_time}") def end_cue(self): pass """ animation.Cues.append(report_time_cue) if show_preview and animation is not None: animation.PlayMode = "Real Time" animation.Duration = 10 animation.Play() animation.PlayMode = "Sequence" if no_render: logger.info("No rendering requested. Total time:" f" {time.time() - render_start_time:.2f}s") return if frames_dir is None: raise RuntimeError("Trying to render but `frames_dir` is not set.") if os.path.exists(frames_dir): logger.warning( f"Output directory '{frames_dir}' exists, files may be overwritten." ) else: os.makedirs(frames_dir) if animation is None: pv.Render() pv.SaveScreenshot(os.path.join(frames_dir, "frame.png")) else: # Iterate over frames manually to support filling in missing frames. # If `pv.SaveAnimation` would support that, here's how it could be # invoked: # pv.SaveAnimation( # os.path.join(frames_dir, 'frame.png'), # view, # animation, # FrameWindow=frame_window, # SuffixFormat='.%06d') # Note that `FrameWindow` appears to be buggy, so we set up the # `animation` according to the `frame_window` above so the frame files # are numberd correctly. for animation_window_frame_i in animation_window_frame_range: frame_i = frame_window[0] + animation_window_frame_i frame_file = os.path.join(frames_dir, f"frame.{frame_i:06d}.png") if render_missing_frames and os.path.exists(frame_file): continue logger.debug(f"Rendering frame {frame_i}...") animation.AnimationTime = ( animation.StartTime + time_per_frame_in_M * animation_window_frame_i) pv.Render() pv.SaveScreenshot(frame_file) logger.info(f"Rendered frame {frame_i}.") logger.info( f"Rendering done. Total time: {time.time() - render_start_time:.2f}s")