Ensight 10.2 Advanced Training September 2017 Presentation User Manual En Sight

2017-09-26

User Manual: Ensight Ensight 10.2 Advanced Training - September 2017 EnSight 10.2 Advanced Training - September 2017 EnSight 10.2 Training CEI Detroit www3.ensight.com 3:

Open the PDF directly: View PDF .
Page Count: 213 [warning: Documents this large are best viewed by clicking the View PDF Link!]

EnSight 10.2 Advanced Training

Martin J. Faber –Sr. Account Manager, North America

EnSight 10 Advanced Training Overview 1 2

More EnSight Basics

Client-Server architecture, EnSight processes,

global shading and hidden lines overlay, 4 icons on the

right (display information, variable legend visibility,

record animation, fast display), EnSight modes

Parts and the Quick Edit Menu

Line width, visibility per viewport, element

representations, displacements, visual symmetry,

element labeling, parts filter elements, element

blanking, shaded and hidden line mode, auxiliary

clipping, fast display representation

Solution Time and Flipbook

Time and advanced tab, discrete or continuous,

record an animation, flipbook load and run tab,

objects and images, 4 types of data, record a flipbook

Pathlines (Transient Streamlines)

Pathlines introduction, creating pathlines, displaying

pathlines, displaying pathline particle traces

Copy, Clone and Tag

Part duplicating, when to use each one, create a part

copy, create a part clone, part tagging, how to

EnSight 10 Advanced Training Overview 2 3

Plots

Curve/graph visibility, show graph in separate

window, graph attributes, axis attributes, curve

attributes, select/delete graphs

More Part Creation

Contours, vector arrows, elevated surface, separation

& attachment lines, vortex cores

Create/Edit Viewports

Viewport overview, linking viewports, exchange with

largest viewport, background color, border and

location, bounds visibility, special attributes, viewport

layouts, new viewport, pop/push viewports

Texture Mapping and Skybox

Background of texture mapping, using decals, loading

and Z-axis projection, repeat mode, texture mode,

update the plane tool, using patterns, modulate,

background of a skybox, box tool, skybox picture

layout

The Keyframe Animator

Keyframe animation basics, quick animations,

keyframe animation examples, run attributes,

animating a clip plane, recording a KF animation, tips

and tricks, examples

EnSight 10 Advanced Training Overview 3 4

Using Predefined Materials

Materials library overview, materials assignment

example, lighting and shading per material, style

feature to copy materials, notes about the materials

library, using materials on the Chevy Traverse, Chevy

Traverse animation

Using Multiple Light Sources

Multiple light sources overview, types of light, notes

about light sources, example of using multiple light

sources, default light vs 3 light sources

Ray Tracing

Ray Tracing basics, creating a Ray Traced image,

creating auxiliary geometry, wheel - Whitted quality

3, wheel - Ambient Occlusion quality 3, Ray Traced

images comparison, Chevy Traverse –Whitted quality

3, Chevy Traverse –Ambient Occlusion quality 3

The Transformation Editor

Global transformation, Z-clipping, tools: cursor, line,

plane & quadratic, center of transform

EnSight 10 Advanced Training Overview 3 5

Create & Edit Attributes (Parts)

Several categories of attributes, full control

of all features

Case Linking

How to, operation, viewport capabilities, toggle full

view, viewport exchange, case linking off, notes

Annotations

Text strings, lines, 2D shapes, 3D arrow with text,

dials, bar gauges, logos, legends, select, delete

Actions that will Slow Down your

System

Hidden line display, opacity, element representation,

keyframe animation, anti-aliasing, high resolution,

label display

2017 Chevrolet Volt Cutaway Drawing

Client Server Architecture 1 7

•EnSight works on a client-server architecture that distributes the workloads

between the client and one or more servers –this architecture leaves the data

where it was computed; if EnSight is run on a single computer, both client and

server are run on that machine

•The GUI (Graphical User Interface) and graphics are handled by the Client; the

Server takes care of all data and the data extraction algorithms; the Server can be

local or remote

Server (cluster): all data, extraction

algorithms; local or remote

Client (GUI & all graphics)

network cable

•When an icon is clicked on the Feature Icon Bar, for instance to create streamlines,

the Client sends a request to the Server to calculate streamlines

•The Server responds by calculating the streamlines and sends back the 3D objects;

the Client then updates the display

Client Server Architecture 2 8

network cable

Requests

3D Objects

Client Server

Client Server Architecture 3 9

•When an icon is selected on the EnSight Feature Toolbar, an action is triggered

mainly on the Server

•When an icon is selected on the Quick Edit Menu, an action is triggered on the

Client

EnSight Processes 1 10

•When EnSight is started in Windows, an EnSight Client Console window is opened

that starts the Client process; as soon as the Client process is running and the

EnSight window with the GUI appears, the EnSight Client Console window is

minimized (it can be opened though)

Number of CPU’s

detected and number of

threads that are being

used

Runs in 64-bit mode

EnSight HPC

license checked

out

EnSight Processes 2 11

•As soon as the Client process is running, EnSight will start another Console window

for the Server process, similar to the EnSight Client Console window; this window

will also automatically be minimized (it can be opened as well)

•During normal operation, EnSight will use 1 Client process and 1 Server process;

when a second model (case) is loaded, EnSight will start a second Server process

for the second case; this means EnSight can connect a single Client to multiple

Servers at the same time, with each Server maintaining a unique dataset

Server Server

Client

Two

Cases

Server

Client

One

Case

•Should the client cease to work (in case of a crash), one or more server processes

are most likely still running; by closing the EnSight Console Server window, the

EnSight Server process will also be shut down

•When EnSight is running, the Task Manager (Ctrl-Shift-Esc) in Windows (ps

command in Linux) will show both Client and Server processes running at the

same time (the Task Manager of Windows 8.1 is shown below)

EnSight Processes 3 12

EnSight Server Process: ens101sv.exeEnSight Client Process: ens101cl.exe

•The Task Manager in Windows (the kill command in Linux) can also be used to end

a lone EnSight Server process because it can slow down the system: Task Manager

-> Processes and left-click ens101sv.exe, then right-click and select End Task

EnSight Processes 4 13

Global Shading and Hidden Lines 1 14

•On the Quick Settings Menu are 2 important icons:

oThe one with the icon of the sun is the global Display

Shaded Surfaces; this button is on by default and

when it is switched off there will be no shaded

surfaces displayed in EnSight, just wireframe; this

can also be toggled through View -> Shaded

oTo the right of this icon is the global Overlay Hidden

Lines icon that is switched off by default; this toggle

enables or disables hidden line mode; this can also

be toggled through View -> Hidden line

Global Shading and Hidden Lines 2 15

•If the current mode is Shaded when Overlay Hidden Lines

icon is toggled on, the Hidden Line Overlay dialog is

displayed; on this dialog a color for the overlay edges can

be specified

•If the Specify Line Overlay Color toggle is not enabled,

the overlay color will be set to the native color of each

part; if it is enabled, the color can be specified either by

entering red, green or blue color values or by clicking the

Mix... button and selecting a color from the palette

Delphi 3D Digital Instrument Cluster

•The Line Width icon on the Quick Edit Menu controls the line width (in pixels) of

any part; by default it is set to a width of 1 pixel; this icon will update to reflect

attribute changes

•When displaying for instance the Shuttle model in wireframe, the width of the

wireframe can be adjusted; in this example from 1 to 3 pixels

•In this example the streamlines are adjusted from 1 to 4 pixels

Line Width 17

Visibility per Viewport 18

•The Visibility per Viewport icon controls whether a part is visible in

a certain viewport or not; black means the selected part is not visible

•When multiple viewports are used this feature will display a thumbnail of the

viewports; click on the thumbnails to make a part visible or invisible in a particular

viewport

•In this example the streamlines in the top

left viewport are not displayed; by selecting

the thumbnail on the menu the streamlines

can be displayed

Element Representations 1 19

•Click the Part Element Settings icon to change the way a part is displayed; the

following menu appears:

•The default setting is 3D border, 2D full; this means a 3D element will only be

displayed by its border lines (no internal element lines will be shown) and a 2D

element will be fully displayed

•This does not modify a part’s geometry, just how it is displayed on the screen

•3D Border, 2D Full (default)

o3D elements are displayed in border mode

o2D elements are displayed in full representation

mode

•3D Feature, 2D Full

o3D elements are displayed in feature mode

o2D elements are displayed in full representation

mode

Element Representations 2 20

3D elements

2D elements

3D elements

2D elements

•3D NonVisual, 2D

oFull 3D elements are not loaded

o2D elements are displayed in full representation

mode

•Border

oShared faces (3D elements) are removed

oShared edges (2D elements) are removed

Element Representations 3 21

3D elements

2D elements

3D elements

2D elements

Element Representations 4 22

•Feature Angle

oFor 3D, operates off of Border elements

oLooks at 2D element normals –the edge between

2D elements are removed if the angle is less than

what the user has specified

•Bounding Box

oDisplays a bounding box around the geometry

3D elements

2D elements

3D elements

2D elements

•Full

oEvery face (3D elements) is visible

oEvery edge (2D elements) is visible

•Volume

o3D elements are rendered as volumes, including

alpha values (transparencies)

o2D elements become nonvisual

Element Representations 5 23

3D elements

2D elements

3D elements

2D elements

•NonVisual

oThe part is kept only on the EnSight server; it’s

geometry is not displayed on the EnSight client -

useful for external flowfields

•Click the toggle Load Points and Normals Only to display

only the element centers of the model

Element Representations 6 24

3D elements

2D elements

•Reduce Polygons speeds up visualization processing by thinning out the number

of polygons that are rendered; the trade off is in image quality and speed; the

model is not changed though, just the visual representation of it on the display

•Toggle Reduce Polygons to activate and use the slider for more or fewer polygons

Element Representations 7 25

•For structural mechanics simulations, EnSight can display and animate

displacements to visualize the relative motion of the geometry

•Select the nodal variable to use

Please note the following restriction:

displacements can only use nodal

vector variables

•The Displacement Factor is a scalar that scales the vectors and exaggerates the

displacements; a value of 1.0 will give ‘true’ displacements

Part Displacement 26

•Visual symmetry is done on the client so it’s a copy of the

original; the symmetry is performed with respect to the

reference frame of the part (see the Frame chapter)

•This feature is useful if there is symmetry in a model and only

part of the model has been analyzed

•There are 2 options: Mirror and Rotational symmetry

•Click on Mirror and select the mirror plane or axis

•There’s a toggle to show or hide the original instance

Part Visual Symmetry 1 27

•For rotational symmetry, click on Rotational, select the Axis, the number of

Sections in 360 degrees and the number of Instances

Part Visual Symmetry 2 28

Exercise 1 –EnSight Processes & Element Rep 29

•See the EnSight 10 Advanced Training Exercises handout and do Exercise 1

Be careful with this feature because it can cause your system to slow down

significantly if used improperly

•Sometimes it is useful to identify specific nodes or elements within a model;

EnSight can display node and element labels in the Graphics Window

•Select the desired part and click the Element

Labeling icon and the labeling menu is displayed;

start by selecting a filter in the Thresholds box;

this has 5 filters to display only selected ranges

of labels:

None - show all labels

Low - remove all labels < the Low value

Band - remove all labels >= Low and <= High

Element Labeling 1 30

WARNING

High - remove all labels > the High value

Low/High - remove all labels < the Low value as

well as those > the High value

•Click on the Node Label Visibility toggle to display

the labels

•The example shows the Space Shuttle model with a

Low/High filter on the nodes of < 475 and > 500

•The Mix button controls the color of the labels

Element Labeling 2 31

•The menus for Element Label Visibility are identical to the Node Label Visibility

menus

Element Labeling 3 32

•EnSight can display the nodes of a model in the Graphics

Window

•There are 3 display types: Dot, Cross and Sphere

oDot: nodes are displayed as points

oCross: nodes are displayed as crosses and can be fixed

size or sized based on a variable

oSphere: nodes are displayed as spheres and can be fixed

size or sized based on a variable

•Scale changes the display size of the nodes

•Crosses and Spheres can be scaled by a variable (scalar or

vector)

Node Representation 33

Part Filter Elements 1 34

•In EnSight filters can be used to remove certain elements; the filter criteria can be

one or two variables or it can be a variable (such as a Von Mises stress/strain)

threshold for which limiting values and conditions are entered as a filter

•Elements are not just visually removed of the client, but are also removed for all

calculations of the server; if elements need to be removed for visual purposes

only, consider Element Blanking

•The variable used must be an Elemental Variable, not a nodal one; use the

NodeToElem function in the Variable Calculator to convert variables if needed

•To use Part Filter Elements, do the following:

oSelect the part(s) to use

oClick the Part Filter Elements icon; the is displayed and the

available Element Variable(s) are listed (they may have to be

calculated from Nodal Values)

oTo calculate Elemental Variables from Nodal Values, open

the Variable Calculator and select the NodeToElem

function; then type in a new variable name and select the

variable, in this case P; click the Evaluate for Selected Parts

button to create the new variable

Part Filter Elements 2 35

•The Part Filter Element Settings menu now displays the new PressureElemental

variable that was just calculated; type for example < 130,000 (Pa) as the filter

criteria, click Apply and only elements with a pressure higher than that number

are displayed

Part Filter Elements 3 36

•Elements can be blanked; this can be useful to peek

inside of certain parts or remove only portions of a part;

element blanking is just a visual removal on the client

•Do the following to blank elements:

oSet the pick action to Pick Element(s) to Blank

oSelect one or more parts in the part list that needs

elements blanked

oPlace the mouse pointer over an element that needs

to be blanked and press the P-key on the

keyboard or click the middle mouse button to

blank the element

Element Blanking/Visibility 1 37

•To make the element(s) visible again, click the Element

Blanking/Visibility icon and click the Clear button or the Clear

All Parts button

•The Selection Tool can also be used to blank elements on a

larger scale

•Do the following to blank elements using the Selection Tool:

oSelect the part(s) on which to blank elements

oToggle the Selection Tool icon on

oPosition the tool and adjust its size if needed

Element Blanking/Visibility 2 38

oClick the Element Blanking/Visibility icon and select

the Domain (Inside or Outside) and which Layers to

blank (Top or All); Inside blanks the elements inside

of the Selection Tool -Outside does the opposite;

Top only blanks the top visible layer while All blanks

all layers with a single click

oClick the Eraser Symbol on the top left corner of the

tool and the first layer of elements is removed; click

it again and the next layer is removed

oToggle the Selection Tool icon off when finished

Element Blanking/Visibility 3 39

•Part Shading and Hidden Line display can both be switched on and off per part;

this means that wireframe, shaded and hidden line views can be mixed in a model

•Remember to switch on the global Display Shaded Surfaces and Overlay Hidden

Lines to see these features

Part Shading and Part Hidden Line 40

Shaded

Shaded with

hidden line overlay

Wireframe

Hidden Line

Element centers

•Auxiliary Clipping can be set per part; by default it is set to on but it can be

switched on or off per part

•In the example below, the body parts of the car are the only parts that have

Auxiliary Clipping set to on; when the Plane Tool is moved, it seems like the outer

skin of the car is peeled away

•Auxiliary Clipping can be toggled on and off by clicking on View -> Auxiliary

Clipping

Part Auxiliary Clipping 41

•Fast Display can be set per part; by default it is set to display a Box

•In this example the main rotor and the cockpit glass are set to a Box display while

the other parts are set to Off

•To make the lines more visible, the Line Width is set to 2

•To activate global Fast Display, click on View -> Fast Display

Part Fast Display 42

Procter & Gamble Pantene Products

Time Menu 1 44

•EnSight can handle both steady state and transient data; when a transient model

is loaded the Time menu will appear on the screen (by default above the Parts

List)

•Click the Play button to run the

model through the time steps

•The DVR like buttons have the following functions:

Play (forward)

Play (in reverse) Step (forward)

Stop

Step (in reverse) Play Once

Loop

Swing

•When a transient data set is loaded, by default the last time step is displayed; this

can be seen by the slider that’s at the end of the time range or by the Cur(rent)

field that has the last time step in it (20 in this example)

Note: The user can select whether the last or first step is

displayed by default by clicking on Edit -> Preferences ->

Data -> If Starting Time Step is Not Specified, Load: select

First Step for instance

•The slider can be dragged to any specific time step; in this

example the slider has been dragged to time step 12, the

Beg(inning) has been changed to step 4 and the End has

been modified to 16 by just typing in these values

Time Menu 2 45

Create/Edit Transient Animation menu 1 + 46

•Click the icon for some advanced features; the time Units can be set as either

discrete Step(s), running from zero to the total number of steps minus one or the

actual simulation time values found in the results data set

•Click the Display Time Annotation to display the time in the Graphics Window;

this is a toggle and the time display can be moved and resized by dragging the

touch-n-go handles

•The time annotation can of course also be displayed by dragging and dropping the

Time variable in the Variable List onto the background of the graphics window

•The time Scale Type can either be Discrete or Continuous:

oIf the Scale Type is set to Discrete, only actual time steps that are listed in the

results data set can be displayed

oIf the Scale Type is Continuous, results can be displayed between actual output

time steps; all variable values are linearly interpolated between the two time

steps

Note: if the mesh is changing over time, results can’t be displayed continuously

•The Timeset Details button controls how multiple timelines of several datasets

can be synchronized and played simultaneously

Create/Edit Transient Animation menu 2 + 47

•Record a transient animation for instance by clicking on

the Record Current Graphics Window Animation icon

on the Quick Settings menu and select the options on

the Save Animation menu such as movie format, window

size, number of passes etc (some of these options are

under the Advanced tab); select the Play and Reset

toggles

•The # of Cycles field determines the number of times

the solution time is played when an animation is

recorded

Record Current Graphics Window Animation 48

•A flipbook is a quick and easy way to make an animation by playing back a series

of images; for each step, a graphical ‘page’ is created and stored in RAM memory;

when the flipbook is played, the pages are sequentially displayed as fast as the

graphics card allows; click the flipbook icon

•A flipbook can be created as Objects or Images; if the flipbook is created using

Objects, during playback of the animation the model can still be rotated or

zoomed but for bigger models the RAM on the client that is needed can be

substantial; in that case Images (pixel data only) is a

better choice due to lower RAM requirements but the

animation can not be rotated or zoomed during playback

Flipbook 1 49

•Most EnSight users use a flipbook to animate and record transient data but a

flipbook can animate 4 types of data:

•Once a flipbook is loaded, the Flipbook menu uses DVR like buttons just like the

Solution Time panel to play an animation

Flipbook 2 50

Display Speed can

slow down the

animation

Cycle can play the

flipbook forward

and in reverse

•If the flipbook pages were created using Images, don’t forget to set the Display

back to Original Model otherwise rotate, pan and zoom will not work (because

the display is still set to Flipbook Pages)

•When a flipbook has been created it can be recorded to a movie file using the

Record Current Graphics Window Animation icon on the Quick Settings menu

•For more complex and sophisticated animations, use the Keyframe Animator and

not a flipbook

Flipbook 3 51

•See the EnSight 10 Advanced Training Exercises handout and do Exercise 2

Solution Time and Flipbook Exercise 52

2017 Cadillac CTS-V Sedan

Pathlines Introduction 54

•The path calculated using a transient flowfield that is updated as the calculation

proceeds is known as a pathline

•By default, pathlines will start at the first time step of the simulation and

terminate at the last step (unless stopped earlier)

•A delta value can be specified for an emitter that will cause additional particles to

be emitted into the flow at regular intervals (Multiple Pulses); this type of pathline

is also called a streakline or smoke trace

•Pathlines can be animated just like streamlines with the same options on the

Particle Trace -> Animate menu

•A pathline is created with the same icon as a streamline, so click the Particle Trace

icon and in the Type selection box select Pathline

•Select the flowfield and click the Create

button and the pathlines part will be created;

however most likely no pathlines will be

displayed on the screen

•This is caused by the settings of 2 menus:

1.The Solution Time menu should be set

to the first time step (usually Start =0)

Creating Pathlines 1 55

2.Double click the Particle Trace Part in the Parts List; this

brings up the Edit Attributes menu for that part; click

the Advanced toggle on; this opens up many more

options under the Creation label

The Emitter Information fields must have values that

are appropriate for the data set; these values can be

found in the results data set: First the Total Time Limit,

(the end time minus the start time) - for this model it

is .1

Creating Pathlines 2 56

Then the Emission Time Start (the time when the analysis starts); for many

models this is at time = 0)

3.The Time Delta is set by default to 0 and this value doesn’t need to be

changed unless more particle traces are needed; if a value is typed in, a new

set of traces will be emitted at S, S+D, S+2D etc into the flow field (S is the

start time and D is the delta value)

Creating Pathlines 3 57

•After the adjustments using the Emitter settings, the pathlines are displayed

Displaying Pathlines 58

•Pathline particle traces are displayed by double clicking the Particle Trace Part in

the Parts List and selecting the Animate toggle

Animating Pathline Particle Traces 59

Part Duplicating 61

•There are two main methods to duplicate parts in EnSight*

•(1) Part Copy

oCreates a ‘linked’ copy of the parent part

▪Users may change color of the copy, display attributes

▪Updates to parent are reflected in the copy

Move the parent, and the copy moves as well

•(2) Part Clone

oCreates a ‘separate’ clone of the parent

▪Initially the clone will have all of the same attributes (color,

position, display, etc)

▪All attributes of the clone are independent from the parent

▪The Clone is a completely separate from the parent

*(You can re-load model parts from dataset to duplicate model parts only)

When to use each one 62

•(1) Part Copy

•When you want to color the SAME part by a different variable

•The Location of the Parent and Copy remain the same

•It is really a ‘linked’ copy

•Not a independent part

•(2) Part Clone

•You have created/setup a part (location, color, style), but now want another

one just like it (to start with)

•Initially it has all the same attributes, but you want the ability to change

anything

•Completely Independent

How to Create a Part Copy 63

•(1) Part Copy

oSelect the part(s)

oTop Pull Down Menu

▪Edit -> Part -> Copy

•The new Part can have only its

visual properties changed (color,

reflection, viewport assignment)

How to Create a Part Clone 64

•(2) Part Clone

oSelect the part(s)

oTop Pull Down Menu

▪Edit -> Part -> Clone

•Alternatively, you can use the Right

Click:

oSelect the part(s)

oRight Click -> Clone

Creating and Using Part Clone 65

•Example of quickly

creating similar part via

‘Clone’ Method

Part Tagging 66

•Part Selection can be tagged (new for EnSight 10.1)

oAbility to Save and Recall Part Selection - up to 10 saved/recalled selections

•Part Selection Tagging is handled via:

oSaved using Alt + [0-9]

oRecalled using Ctrl + [0-9]

•‘Groups’ are not created - simply an ability to save & recall part selection

•Meant for quick save/recall of complex part selections

•Parts can exist in multiple selections (Part #4 can be in both Alt-0 and Alt-4)

Part Tagging –How To 67

•Select the Part(s) you wish to save the selection

oPress Alt + [0-9] to save the selection to one of 10 selections

oPress Ctrl + [0-9] to recall that selection

•Each Selection Creation is noted in the output area

•Part Tagging selections are saved and restorable from Context, Session, and

Archive files

•Part Tagging is not saved or restored in Journal files (no command

equivalent)

Mercury Marine Verado

350 SCi outboard engine

•Queries and plots can be generated by right clicking the Line Tool or right clicking

a clip part and selecting Query (Variable) as described in the EnSight Basic

Training

•A query and plot can also be created by clicking the Query icon on the Feature

Toolbar; the Create/Edit Query/Plot menu is displayed

•On this menu select the Sample, in this example the

Line Tool, Variable 1, for instance the pressure_coefficient

then select the appropriate part(s) and click on the Create

Query button

•Since the Auto Plot Queries is toggled on, the query will

be immediately plotted as well

Query/Plot 1 69

•If Variable 2 is clicked and a second variable is selected, the result is a scatter

query and plot of two different variables along the line tool

•The number of Samples controls the number of points

along the sample tool (the Line Tool in this example)

•Click the Update Query

button if the number of

Samples is changed for

an existing plot

Query/Plot 2 70

•Of course it’s also possible to create a plot with the

distance along the Line Tool on the X-axis and the 2

variables on the Y and Y2 (right) axes; to do this, create

the first query and plot, then create the second query

and drag-and-drop it onto the origin or one of the axes

of the existing plot

•Move the Query Description by double clicking the

origin of the plot; new handles will appear to move

the description

Query/Plot 3 71

•Toggle the Query Display to change the Line Width of the

graph; as mentioned in the EnSight Basic Training, just put

the cursor over the drop down list and roll the mouse

wheel; this will change the Line Width without actually

having to go into the drop down list

•Please note that the Curve Line Width icon on the Quick

Edit Menu is dynamically updated as the mouse wheel is

rolled

Query/Plot 4 72

•Right click on a curve to get instant access to

many parameters of the curve

•Select Edit to display the Create/Edit

Query/Plot menu which enables complete

control over both the query and the plot

Query/Plot 5 73

•The last option on this menu is Data and it provides a

way to Display the data for the current Query/Plot

•The information can also be saved to the clipboard, a

CSV file which can be read by Excel, an XY plain text file

or a formatted plain text file

Query/Plot 6 74

•This is an example of a finished graph

Query/Plot 7 75

Lockheed Martin

F-22 Raptor

•A contour is a line of constant value on a 2D surface

•Select the parts the contours should be displayed on

•Click the Contours icon , select a variable and click the Create with Selected

Parts button

Contours 77

•Represents the direction and magnitude of a vector field

•Create a Clip plane in a fluid domain for instance and select the Clip Part

•Click the Vector Arrows icon , select a variable and click the Create with

Selected Parts button

•The Scale Factor controls the size of the vector arrows

•Vector arrows can be Straight or Curved

•The Density field controls the number of arrows

Vector Arrows 1 78

Vector Arrows 2 79

•Represents an offset surface of a scalar variable

•Select a part then click the Elevated Surfaces icon , select a variable and

click the Create with Selected Parts button

•The Surface Type can be Elevated or Offset

•The Scale Factor controls the size of the elevated surface

•The Offset field allows to shift the elevated surface

away from the parent, but does not affect the shape

•An Elevated Surface can have Sidewalls

Elevated Surfaces 1 80

Elevated Surfaces 1 81

•Separation and attachment lines are created on any 2D surface and show

interfaces where flow abruptly leaves (separates) or returns (attaches) to the

surface

•Select a part then click the Separation & Attachment Lines

icon , select a variable and click the Create with Selected

Parts button

•The separation lines are green and the attachment lines

are pink

•There are various menus to define the Method that is

used and tweak the separation & attachment lines

Separation & Attachment Lines 1 82

Separation & Attachment Lines 2 83

•Vortex cores are centers of swirling flow where the velocity is parallel to the

vorticity

•Select the fluid domain then click the Vortex Cores icon

•There are various menus to define The vortex variables

and the Method that is used

•Click the Create with Selected Parts Button

•Some CFD users like to use vortex cores to generate

streamlines from

Vortex Cores 1 84

Vortex Cores 2 85

More Part Creation Exercise 86

•See the EnSight 10 Advanced Training Exercises handout and do Exercise 3

Polaris Snowmobile

•Advanced control over one or multiple viewports can be achieved through the

Viewport tab in the Objects List

•If the Viewports tab is not displayed in the Objects List,

click on Window -> Toolbars/Panels -> Viewports and it

will be toggled on; this is also how it can be toggled off

•Click the Viewports tab in the Objects List and the Main

Viewport will be listed

Viewport Overview 1 88

•Right click in the background of the the Main Viewport - since

there is only 1 viewport in this example there are only 3

options: Edit, Hide and New

•When Edit is selected the Create/Edit Viewports menu is

displayed with 5 options; these options are explained in the

following slides

•When there are 2 or more viewports, a right click has 4

additional options: Copy Transform, Paste Transform, Link and

Exchange with Largest Viewport

•Copy Transform and Paste Transform can be used to copy the

view from one viewport to another; use Copy Transform in one

viewport and Paste Transform in another to copy the view from

the first viewport to the second

Viewport Overview 2 89

•The Link option can link 2 or more viewports

that have the same or totally different views in

them

•To link 2 viewports, for instance the right and

left views of the airplane, right click in the first

viewport and select Link –then perform the

same action in the second viewport; the 2

viewports are now linked; more viewports can

be linked in the same way

•To unlink the viewports, right click and select

Unlink in each of the viewports that was

linked

Linking Viewports 90

Exchange with Largest Viewport 91

•The Exchange with Largest Viewport option exchanges the view of a smaller

viewport with the one in the largest viewport

•Select a viewport and right click to edit the viewport; click the Background expand

arrow to display the options - the expand button is now pointing downwards

to indicate that the menu has expanded; the viewport background colors can be

constant, blended or inherited from the default viewport; the default color is a

blended color that changes from black at the bottom to gray at the top in 3 levels

•The background of a viewport can also be an image; select

Image under the Type Selection box and the system will ask

for an image file name to display in the background

Viewport Background Color 1 92

•For a Blended background, up to 5 horizontal level colors can be specified with

blending between each level

•To create a new blended background color,

do the following:

oSelect Blended under Type

oEnter the # of Levels, for example 4

oSet Edit Level to 1 and enter the RGB values,

for instance .3, .1 & .7 or click on Mix Color…

oDo the same for the other levels and a new

Blended background has been created

Viewport Background Color 2 93

•Use the Inherit option so the selected viewport(s) inherit the background type

and color from the Main viewport

•In this example the new viewport (# 1) has the default Blended colors and when

that is changed to Inherit, it takes the local color of the default viewport

Viewport Background Color 3 94

•The border of a viewport can be made visible by clicking the Border arrow; the

border visibility can be toggled and the color of the border can be selected as well

•The position and size of a viewport can be

entered by clicking the Location arrow

Viewport Border and Location 95

•Part bounds can be displayed per viewport; click on View -> Bounds Visibility

from the Main Menu to toggle this feature on; right click in a viewport and click on

the Bounds expand arrow

•The attributes of the Bounds Visibility feature can be modified with this panel

Viewport Bounds Visibility 96

•Click the View arrow to see more options that can be set per viewport

•A viewport can be set to either a 2D or 3D View

Dimension; if the viewport is set to 2D, only planar

parts will be displayed in the viewport and the

rotations in that viewport can be only around the

screen Z-axis

•Each viewport has it’s own toggles for Perspective,

Shaded and Hidden Line display modes

Selected Viewport Special Attributes 1 97

•A viewport can track a Node Number, a Part Centroid or the Part XYZ Min or Max

values; as a model changes over time the viewport will remain centered on that

location; this can be very useful for transient datasets

Selected Viewport Special Attributes 2 98

•When EnSight is started, it creates a single default viewport (labeled Main

Viewport) that fills the entire Graphics Window

•Right click in the viewport and 6 viewport layouts are displayed:

•Click the layout that is desired; in this example the

4 equal viewports layout is selected and the system

resets the views in the new viewports

Viewport Layouts 99

1 single full viewport

2 vertical viewports, side by side

2 horizontal viewports, top and bottom

4 equal viewports

4 viewports with 3 equal vertical

4 viewports with 3 equal horizontal

•Right click in the viewport and select Viewports -> Create; this will create a new

viewport in the top left corner of the Graphics Window

•The new viewport can be resized by dragging the borders and moved by clicking

and dragging in the new viewport

New Viewport 100

•EnSight allows overlapping viewports; the viewport order can be controlled with

the Pop Viewport(s) Forward icon and Push Viewport(s) Back icon ; click in a

viewport and click either the Pop or Push icons

•The Main Viewport can also be popped forward or pushed backwards

Pop/Push Viewport(s) Forward/Back 101

Cummins 6.7L Diesel Engine with

Variable Valve Actuation

•Texture Mapping is a technique whereby a 2D picture is projected onto a 3D

object or even wrapped around a 3D object

•The easiest way to use Texture Mapping is to take a picture and use it as a decal (a

sticker) and place it somewhere on a 3D object; Texture Mapping can also be used

to display a pattern over part of the 3D object or the entire 3D object

•To access the Texture Mapping panel, select a

part, click the Surface Property Editor and click the

Texture arrow; click the Edit

Textures button to display the

Textures menu

Texture Mapping Overview 103

•The following example projects the front label of a Tide

detergent bottle onto the front of a 3D model of that

bottle

•On the Textures menu, load a picture by right clicking on

the first texture and selecting Load Texture; this will

display a file browser where a picture file can be selected

(.png, .jpg, .bmp etc); a high resolution image will give

best results

•As soon as a picture is selected, a thumbnail will be

displayed on the Textures menu; in this case the front

label of the Tide detergent bottle

Texture Mapping –1st Method - 1 104

•The fastest way to apply a texture map is to use the Plane Tool;

in this example the XY-plane of the tool is parallel to the front

of the Tide bottle with the Z-axis sticking out the front of the

display

•It’s easiest to look at it from the front view with View ->

Perspective switched off

•Select the bottle in the Parts List and left click on the first

texture with the Tide front label; this will project the texture

along the Z-axis onto the bottle; the strange pattern on the

bottle is caused by the Repeat Mode on the Textures menu

Texture Mapping –1st Method - 2 105

•Repeat Mode is set by default to Repeat which is typically

used for patterns; for this example change it to Clamp

•To make the system use the current size, position and

orientation of the Plane Tool, click on the Get Proj from

Plane Tool button; this will update the texture map to use

the current Plane Tool

•Adjust the size and position of the Plane Tool and click the

Get Proj from Plane Tool button after each change; after

several changes the fit will be near perfect

Texture Mapping –1st Method - 3 106

•Rotate and zoom in on the model (watch it full screen for instance by hitting F9)

and see that the texture map adds a great amount of realism to the model

•When the model is rotated to the back of the bottle it will be clear there’s a

problem; the front label is also mapped on the back of the bottle and because of

the Z-axis projection, it’s in mirror image

•This can be fixed by cutting the bottle in 2 halves; click

the Tools button on the top Main Menu and select Box;

position the box in the middle of the bottle and make

sure it covers the entire half of the bottle; click the Clip

icon and select Box as the Use Tool

Texture Mapping –1st Method - 4 107

•The model looks like this with the Box tool covering half the

model; the Box tool’s axis can be resized and the entire tool can

be moved by dragging the origin point of the 3 axes

•With the bottle still selected in the Parts List, cut the bottle with

the Box tool using the Clip feature; select In/Out as the Domain,

this will create 2 new bottle halves in the parts list, named

Bottle + and Bottle - ; at the same time it will hide the original

Bottle part

Texture Mapping –1st Method - 5 108

•Now there are 2 bottle halves that can be texture

mapped individually using the same Z-axis

projection method as described before to texture

both the front and the back label onto the Tide

bottle

•Under Interpolation select Nearest or Linear, whichever looks best

•On the Textures panel, set Texture

Mode to Decal

Texture Mapping –1st Method - 6 109

•Load bottle.case and cut the bottle so the front and back labels can be texture

mapped on it

•Texture map both labels onto the bottle

•Create 2 viewports side by side and show the front and back view at the same

time; link the viewports and make the viewport borders invisible

Texture Mapping Exercise 110

•The second method of using Texture Mapping is to use an image as a pattern over

the entire 3D model or a portion of it; patterns like wood, brick, fabric etc can be

used to give a 3D object more realism

•The Plane Tool is again used to specify the Z-axis that will define the way the

pattern is projected onto the 3D object

•The Comanche helicopter body will be used to texture map a pattern onto; the

color of the body of the helicopter is military green

Texture Mapping –2nd Method - 1 111

•The following patterns are textures that were found on the internet and will be

used to texture map the Comanche body

•To use one of the above textures, do the following:

oLoad the Comanche model, select the Comanche body (Part ID 4) and open

the Textures menu

oToggle the Plane Tool Visibility icon on

oRight click the first texture field and select Load Texture… and load the

camouflage image from the file browser

oLeft click the thumbnail that just appeared on the Textures menu and the

texture will appear on the body of the Comanche

Texture Mapping –2nd Method - 2 112

camouflage water drops wood bricks $100 bill

•On the Textures menu the Texture Mode is by default set to

Decal; the Repeat Mode is by default set to Repeat; the

Comanche model will look something like this

•Set Repeat Mode to Clamp and only the portion of the

object that is under the Z-axis projection will be textured

•Set Texture Mode to Replace and only the textured portion

of the object will be displayed

Texture Mapping –2nd Method - 3 113

•Still on the Textures menu, set the Texture Mode to Modulate and the color of

the object (military green in this example) will shine through the texture and it will

preserve the shading of the model underneath the texture map; the Repeat Mode

has been set back to Repeat

•By changing the color of the Comanche body and by modifying the size and

orientation of the Plane Tool, the texture map will be influenced; after every

change to the Plane Tool, click the Get Proj from Plane Tool button to update the

image

Texture Mapping –2nd Method - 4 114

•Here are some examples of texture maps on the Comanche

Texture Mapping –2nd Method - 5 115

•A Skybox is a cube that is placed around the entire model and the 6 sides of the

box are texture mapped with 6 images that are continuous at the seams; this

creates the illusion of a 3D world around the model that rotates as the model is

being rotated

•The cube has to be significantly bigger than the limits of the model, so the user

can zoom in to the model and see the 3D world in the background

Skybox Overview 116

Click the movie to play

•To create a Skybox around the Space Shuttle model, do the following:

oLoad the model and texture map the shuttle for even more realism (set View

-> Perspective to off to make it easier)

oZoom out so the model is relatively small at the center of the screen and click

Tools -> Box (resize the box if needed)

oSelect the Space Shuttle (Part ID 2) in the Parts List

oClick the Skybox icon and click Ok

Skybox 1 117

oSelect a Skybox picture in the file browser; a

Skybox picture has the following layout

oSwitch of the Box tool and switch Perspective

back on

oZoom into the Skybox so the model can be seen;

switch on any particle traces, clip planes,

isosurfaces etc

oClick F9 and rotate and zoom the model full

screen

oA Skybox will be recorded in an animation

Skybox 2 118

Texture Mapping Exercise 119

•See the EnSight 10 Advanced Training Exercises handout and do Exercise 4

Embraer Legacy 600 Business Jet

Keyframe Animation Basics 1 121

•EnSight can create smooth and complex animations using a process called

Keyframe Animation

•In a keyframe animation, a particular start view and a different end view (called

keyframes) are defined and EnSight can automatically generate frames to

interpolate between the two views creating a smooth animation

•A keyframe animation will record not only all rotations, pans and zooms that are

used but also changes in transparency, auxiliary clipping, particle traces,

isosurfaces, clip planes, plots, texture maps, a skybox etc

•The length of the animation is determined by the number of frames generated

between the two keyframes

•A keyframe animation can also be used to record a transient model; the time line

of the dataset can be controlled

•The results of a keyframe animation can be written to various movie formats such

as MPEG, AVI, QuickTime, Flash etc

•The resolution of the animation can be controlled from NTSC, PAL, DVD, HD 720p,

HD 1080p up to User Defined; anti-aliasing can be used to get the highest possible

quality for the frames used in the animation

•Once EnSight is starting to generate frames, the process can be aborted by placing

the cursor in the Graphics Window and pressing the key on the keyboard (

for abort)

Keyframe Animation Basics 2 122

A A

•A fast way of generating a keyframe animation is to click

the Keyframe Animation -> Quick Predefined Animations

toggle; this displays a panel where 3 predefined options

can be selected

•Enter the total number of frames, one or more of the

predefined options (Fly Around, Rotate Objects and

Explode Views) and type in the desired parameters for

each option

•Click the Create Predefined Keyframe button and the

keyframe sequence will be created

Quick Animations 123

•The Space Shuttle model with the particle traces will be

used as example

•Once the model is loaded, select the -Y view and

press the ‘Fit Geometry’ icon so the Shuttle is

facing left

•Click the Keyframe icon ; on the menu click the Create

button –this will create the first keyframe

•Then rotate the model to the front view by pressing

twice and click Create again - this will create the second

keyframe

Keyframe Animation Creation 1 124

Keyframe 1

Keyframe 2

•EnSight just created a keyframe animation and it can be

played back; click on the Run button and the animation

will be played

•This animation is not very useful because the playback

time is less than a second; this is controlled by the Speed

and Actions button; clicking this toggle will display a menu

where the number of Sub-frames to the Next Keyframe

can be entered; this number controls the speed of an

animation

Keyframe Animation Creation 2 125

Click the movie to play

•In this next movie the number of subframes has been

set to 88; the animation now takes exactly 3 seconds

to play - why 3 seconds? Well, an animation has a

default frame rate of 30 frames per second and since

there are 2 keyframes that were created (the start

view and the end view) plus 88 sub-frames, there are

a total of 90 frames - at 30 frames per second, that’s

exactly 3 seconds

Keyframe Animation Creation 3 126

Click the movie to play

Keyframe 1 Keyframe 2

Frame #1 #90

Sub-frame 1…………………………………………………………………….88

•After the first 2 keyframes, more keyframes can be created; press two more

times and zoom in on the Space Shuttle, then click Create again; there are now 3

keyframes and 2 sets of sub-frames; to make the segment from the second

keyframe to the third keyframe also 3 seconds long, the number of sub-frames

have to be 89 - here’s why:

•Note that the animation between keyframes 2 and 3

not only rotates but also zooms at the same time

(noticed the animated particles?)

Keyframe Animation Creation 4 127

KF 1

Frame #1 #180

88 Sub-frames KF 2 KF 3

89 Sub-frames

Click the movie to play

•As soon as 1 or more keyframes are defined, the

Keyframing toggle will be checked; when this toggle is

checked, it means there are 1 or more keyframes

defined

•When the toggle is unchecked, the entire keyframe

sequence is deleted; click on Save to file a keyframe

sequence and press Restore to read it back in from a file

Keyframe Animation Creation 5 128

•After 2 or more keyframes have been created, the Speed

and Actions panel will become available; on this panel

besides the number of sub-frames, options to animate

Isosurfaces, Clips and Transparency changes can be

toggled on

•Click the Transient Data Settings toggle if the dataset is

transient and the motion should be included in the

animation (if the dataset is not transient this feature is

grayed out)

Keyframe Run Attributes 129

•Create another Space Shuttle keyframe animation

starting with the shuttle facing left with a clip plane in X

•Click the Create button then rotate the model 180° so it’s

facing right; left click the clip plane and drag it so it’s just

behind the Space Shuttle; now click the Create button

again

•The animation now rotates and moves the clip plane at

the same time

Animating a Clip Plane 130

Click the movie to play

•To make a movie from a keyframe animation, click the record

icon or click File -> Export -> Animation; the Save

Animation menu is displayed

•Make sure to select the toggles for Keyframes Play and Reset

•Enter the name for the movie

•Click the Advanced toggle to display a menu where the

Window Size and anti-aliasing (Number of Passes) can be set

Recording a Keyframe Animation 1 131

•The Set Format button displays a variety of movie formats

that can be selected; choose a format, in this example AVI,

and see the options for that format

•The Stream Bitrate controls the quality of the movie; a

higher number results in a higher quality but at the cost of

a bigger file size

•Click the OK button on the Save Animation menu and the

movie will be created

•The Message Area in the lower left corner of the EnSight

window will display the frame numbers that are being

generated

Recording a Keyframe Animation 2 132

•Creating many keyframes does have its drawbacks; for instance if a certain

keyframe sequence has to be modified, there’s no way to just go back to that one

sequence and modify it; for this reason it’s better to create a keyframe sequence

between only 2 keyframes and then write it as an animation file

•After all the individual movie segments have

been created, a free program supplied by CEI

called EnVe is used to create one complete

movie from all these segments

Keyframe Animation Tips 1 133

Keyframe Animation Tips 2 134

•If an animation is needed that can be continuously looped, make sure the start

frame and the last frame are the same

•Remember that the graphics on a workstation run at a different frame rate

(normally slower) than a movie (30 frames per second); this means that an

animation that looks fine on a workstation could be too fast when played back as

a movie

•When an animation is created using a large window size (resolution) and/or anti-

aliasing, the generation time of the movie file will be significantly longer

•Creating a keyframe animation is pretty easy; however, creating a great movie

using keyframe animation takes skills, creativity, a plan of what the movie should

look like and experience

Keyframe Animation Examples 135

HCCI Engine In-cylinder Contact Lens Packaging

Boeing C-17 Ground Vortex

Keyframe Animation Exercise 136

•See the EnSight 10 Advanced Training Exercises handout and do Exercise 5

137

Boeing 787-10 Dreamliner

Materials Library Overview 1 138

•EnSight 10.2 introduces a predefined materials library that can be used to

enhance the realism of parts

•The Surface Property Editor is used to assign a material to a part –click the Color

Wheel icon to display the menu

•The Surface Property Editor menu is similar to the

previous Color Editor menu but it has more lighting

controls and it contains several new menus as well:

oPredefined Materials

oOpacity By Variable

oSurface Flow Display

•The Texture menu is now directly accessible on the

Surface Property Editor menu

Materials Library Overview 2 139

•The materials library is accessible by clicking the expand

button to the left of the Predefined Materials label

•When clicked, the materials library opens up and displays 6

types of materials - the expand button is now pointing

downwards to indicate that the menu has expanded

•By default, parts are not assigned a material when they are

created or read in from a dataset

•To see the available metal materials for instance, click the +

sign to the left of the Metal label; this will open the Metal

group and it will display several metals

•Select a part in the Parts List and select a material, for instance

Metal -> Chrome –this assigns the metal chrome to the part

that is selected

Materials Assignment Example 140

•Use the ‘Chevy Traverse Wheel.case’ dataset as example

•Assign Chrome as the material for the rim, rim center logo edge and rim center,

Rubber -> Hard for the tire, use Paint -> High-gloss for the caliper, Aluminum for

the rotor, brake line and the valve stem, Iron for the brake housing, Gold for the

GM logo and Plastic -> Hard for the valve cap –modify some of the slider settings

and see what the effects are; adjust colors as needed

Without Materials With Materials With Materials, texture map & road

Lighting and Shading per Material 141

•The sliders in the Lighting and Shading menu have different options depending on

the material that is selected

•The Metal and Glass group and the Paint –> High-gloss and Semi-gloss have

reflections –on the Lighting and Shading menu there’s an additional slider for

Specular Reflections for these materials –some of the Glass and the Gloss Paints

have a Refraction Index as well; all other materials are matte and do not have

reflections

•Depending on the selected material, the Lighting and Shading menu can have

from 1 to 8 sliders that control how the materials look

Lighting and Shading menu for High-gloss & Semi-gloss paint

Lighting and Shading menu for Glass -> Mirror

Style Feature to Copy Materials 142

•The color and material settings of a certain part can be copied to other parts by

using the Style feature in the right-click menu

•Put the cursor on the part with the color and material that needs to be copied and

right-click; then select Style and click Copy

•Now put the cursor on the part that needs

the new color and material settings and

right-click; then select Style and click Paste

•Style -> Paste can be used for multiple parts

and groups as well

•Please note that the Shading Type is not

copied from one part to another

Notes About the Materials Library 143

•Some notes about using materials:

oFor Glass -> Mirror, there is only 1 slider for Specular Reflection in the Lighting

and Shading menu; there is no color assigned to a mirror

oAuxiliary geometry can serve as reference geometry to increase the realism of

the scene; click on Create -> Auxiliary Geometry to select the plane that’s

needed; the road surface in the

image on the right was created using

Auxiliary Geometry with a texture map

oTo create even more realistic scenes, use

multiple light sources and Ray Tracing; this

is discussed in the next 2 chapters

oFor high quality output, use antialiasing

and make sure the Shading is at least

set to Smooth; switch off the Model Triad

Using Materials on the Chevy Traverse 144

CFD modelCFD model with some materialsCFD model with CAD model

CFD & CAD model with correct colors

CFD CAD colors materials CFD CAD colors materials texture maps

CFD CAD colors materials texture maps lights CFD CAD colors materials texture maps lights auxiliary geometry

Chevy Traverse Animation 145

146

Boeing 787 Dreamliner

without any seats

Multiple Light Sources Overview 147

•EnSight 10.2 Has 7 additional light sources besides the standard light

•Using multiple light sources has a significant effect on the realism and overall

visual quality of the model, particularly when Ray Tracing will be used

•There are 3 different types of lights: Directional, Spot and Point

•Each light source can be placed anywhere in 3D space

•Click View -> Lighting to display the Light Source Editor

•The intensity and color of the lights can be controlled

•The first light source is the original light source that has

always been present in EnSight; the light is from the user

in the direction of the –Z screen axis, towards the model;

there is no light attenuation (gradual loss in light intensity)

and the type of light can not be modified

Types of Light 1 148

•Each of the 7 additional light sources can be active or inactive –

use the toggle to switch a light source on or off

•Each light source, except light source 1, has a Glyph (an icon) in

the graphics window that indicates its position and orientation;

the visibility of a glyph can be toggled on or off; a glyph has 3

hot points: at both ends and at its center

•There are 3 types of light:

oDirectional - the light is located at infinity and points towards

its end; there is no light attenuation; the glyph and hot point

locations for this light are:

Moving the glyph at its center has no effect on the lighting of

the model; only moving its end points changes the lighting

effects

Types of Light 2 149

oSpot - the light shines towards its point; this light has attenuation; this light type

also has a spot angle as well as a falloff angle which defines how blurry the light

cone will be; the glyph and hot point locations for this light are:

Moving any of the hot points has an immediate effect on the lighting of the

model; use the Falloff % slider to control the blurriness of the light; use the

Intensity slider and the length of the arrow to control the light intensity

oPoint - the light shines in all directions and is located at the specified point; this

light type has light attenuation; the glyph and hot point locations for this light

are:

+++

Ray End

Types of Light 3 150

Moving any of the hot points has an immediate effect on the lighting of the

model; moving the Ray End (the small sphere at the end of the glyph) towards

the light source will dim the light –moving it away from the light source will

increase the intensity of the light until at a certain distance it’s not noticeable

anymore; the direction of the light source has no effect on this type of light

Notes About Light Sources 151

•Using multiple light sources of various types can greatly enhance the overall visual

quality of a scene

•Start by switching off all available light sources

•Add the first light source and don’t use the first default light since this is often

overpowering and it will make the scene look flat

•Use Light Source 2 as the first light source to light the overall scene; experiment

with the position, color and intensity –click and drag the glyph to various

positions to see the effect

•Use additional light sources to fill or back light objects you want to focus on

•When multiple light sources are used, make sure not to oversaturate the scene

with too much light –experiment with the intensity slider

•Lighting a scene properly is as much art as it is science; the more experience

someone has in lighting, the better the scene will look

Example of Using Multiple Light Sources 152

No light sources Add 1 Directional light Add 1 Spot light

Add 1 Point light

Default Light vs 3 Light Sources 153

Default light 3 Light sources, no default light

154

Lockheed Martin F-35

Joint Strike Fighter with

F-16 in the background

Raytracing Basics 155

•Raytracing is an advanced rendering technique that traces the path of light and

simulates the effects of its encounters with virtual objects

•This technique is capable of creating highly realistic images; however these types

of images have to be calculated by the system and this takes time

•Raytracing can accurately create a wide variety of optical effects including

multiple lights, shadows and reflections

•EnSight uses a build in raytracer called enRay –this Raytracer can be accessed

directly from within EnSight

•The implementation of the Raytracer in terms of the GUI has been kept to a

minimum to ensure ease of use

•Depending on the quality of the output and the complexity of the scene,

Raytraced images can take several seconds to several minutes to calculate

Creating a Raytraced Image 1 156

•Click on File -> Export -> Image and click on the Raytrace

The Scene toggle; this informs EnSight to use the Raytracer

to create the image; the anti-aliasing options are disabled

since they are automatically set in the Raytracer

•Click the Raytracer Settings button to see the available

options for the Raytracing process

•The Surface Integrator has 2 options: Whitted or Ambient

Occlusion

oWhitted will produce images with sharp shadow edges

that typically occur on a sunny day without any clouds

oAmbient Occlusion will create much softer, blurry

shadows that occur on a sunny but slightly cloudy day

Creating a Raytraced Image 2 157

•There are 6 Quality settings for both Surface Integrators; on setting 1 (the lowest

quality setting) the image on the left takes about 7 seconds to create on a Dell

Precision 7710 laptop; the image to the right on quality setting 6 (the highest

quality setting) takes about 160 seconds to create using the same laptop

Create Auxiliary Geometry 158

•Click on Create -> Auxiliary Geometry to create the road

surface for the Chevy Traverse model for instance

•This uses the sides of the bounding box of the model to

create up to 6 sides; in this case only the bottom Z-plane

of the bounding box is needed so that is selected

•This plane can be used to texture map or to assign a

material for instance

•Shadows from the Raytracer will be cast onto the

Auxiliary Geometry

Wheel - Whitted Quality 3 159

•The following image, using Whitted on Quality 3, takes about 20 seconds to

generate

Wheel - Ambient Occlusion Quality 3 160

•Here’s the same image with Ambient Occlusion on Quality Setting 3 (70 seconds)

Ray Traced Images Comparison 161

Whitted, Quality 3 Ambient Occlusion, Quality 3

Chevy Traverse - Whitted Quality 3 162

Chevy Traverse –Ambient Occlusion Quality 3 163

NASA’s Space Shuttle Atlantis Launch

•The Transformation Editor can do transformations with exact values; it can also

perform several other useful tasks

•Click on Edit -> Transformation Editor and a panel is

displayed that has Transformation Editor in the title bar

and then in brackets Global Transform; the phrase in

brackets indicates the current function the Transformation

Editor is executing, so in this case it is a global

transformation

•There are 4 transformations that can be done: Rotate,

Translate, Zoom and Scale around any of the axes

The Transformation Editor 1 165

•To do a global transformation with exact values, use either

the slider, the forward and backward increments or type in

a number in the Increment or Limit field

•For instance, if a rotation is needed around the X-axis with

an angle of 34.95°, type in 34.95 in the Increment field and

click the forward or backward button or type in 34.95 in

the Limit field and move the slider to its limit in either

positive or negative direction; the total angle will be + or -

34.95°

The Transformation Editor 2 166

•When parts are zoomed in very closely, the model can progressively disappear;

this is called Z-clipping; there are 2 Z-clip planes: the front and back planes and

they are in the Z-axes of the display so coming out and going into the screen

•The Z-clipping in EnSight can be controlled by clicking on Editor Functions -> Z-Clip

to display a panel that shows the Front and Back Z-clip planes (the red lines); the

white box represents a bounding box of the geometry

•By default the Z-clip buffers float with any transformation;

however, if Z-clipping occurs anyway, the user can modify

the Minimum Z-Value by making it smaller or larger

The Transformation Editor 3 167

•The tools in EnSight (Cursor, Line and Plane) can also be

manipulated using the Transformation Editor; click on

Editor Functions -> Tools -> Line and the following panel is

displayed; please note that the title bar displays Line Tool

in brackets

•The transformation tools on this panel can be used to

Rotate, Translate and Scale the Line Tool by exact values

•For the Line Tool, this panel lists the start and end points

•The Line Tool can also be positioned using 2 Node ID’s

The Transformation Editor 4 168

•A similar panel is available for all other tools (Cursor, Plane, Box and the quadratic

tools as well)

•Click on Editor Function -> Center of Transform to display or set the coordinates

of the center around which the model transforms; this can also be done by

clicking the Pick icon and selecting ‘Pick Center of Transform’ and then

selecting a node of a part using the cursor and the key on the keyboard

The Transformation Editor 5 169

•Click the Tool Location Settings icon and then Reset to display a

menu that allows tools and viewports to be reset

•When the Reinitialize button is clicked, the center of transform is

modified to the geometric center of the visible parts on the

screen

•Clicking the Tool Location Settings icon and then Tool Location

Editor brings up the Transformation Editor displaying one of the

Tool menus

The Transformation Editor 6 170

•Another method of displaying the Transformation Editor is to click the Graphics

Window Transforms icon and then select Transformation Editor; the system will

display the Transformation Editor in the Global Transform mode

The Transformation Editor 7 171

2017 Chevrolet Volt Interior

•When a function on the Feature Toolbar is clicked, for

instance Particle Traces in this example, EnSight will display

the basic Create Traces menu

•Please note this menu is to create a new particle trace part as

can be seen by the Create selection box

•This menu displays the basic creation features that are

available for this operation and are displayed under the

Creation toggle

Create Attributes (Parts) 1 173

•For more advanced features, click on the Advanced toggle

•The system displays several more options to create particle

traces

•For instance, for Surface Restricted particles, a Variable

Offset and a Display Offset can be specified

•For pathlines the Total Time Limit, Emission Time Start

and Time Delta can be entered on this menu

•At the bottom of this panel there’s a toggle called Massed

Particles; when this toggle is switched on, a new panel will

be displayed that allows particle traces to have a mass

(regular particle traces are massless)

Create Attributes (Parts) 2 174

•The Massed Particle Attributes panel has several tabs that

specify how to define the massed particles; see the User

Manual for more information about the mathematical

background of massed particles

•Scroll down on the Edit Attributes menu and click the other

toggles on the Edit Attributes menu to modify General

Attributes, Node, Element & Line Attributes and

Displacement Attributes; for some parts it will also display IJK

Axis Display Attributes

Create Attributes (Parts) 3 175

•When a part in the Parts List is double clicked, the Edit Attributes menu is

displayed; this menu is very similar to the Create Attributes menu but on this

menu the Edit selection box is active

•Please note that in the Parts List the part that is being

edited has the icon in front of the name to indicate

this is the part that is being edited; even if another part

is selected, the icon will stay in front of the part that

was edited last

Edit Attributes (Parts) 1 176

•Toggle the Advanced button and EnSight will display several

more options

•Click for instance on the Displacement toggle to display

several options for this feature; check out the others as well

(General, Node & IJK)

•The Edit Attributes menu can also be displayed by right

clicking on a part in the Parts List and selecting Edit

Edit Attributes (Parts) 2 177

Ferrari FXX-K

Case Linking 179

•As an extension to EnSight’s ability to Load Multiple Datasets at once, Case Linking

attempts to provide an easier manipulation of the analysis of multiple datasets

oOperations performed on one case are automatically done on all other open

datasets

oSynchronization of part creation, coloring, queries across all of the cases

oEnSight 10.1 has introduced this capability (version 1)

•Make Comparisons between cases easier

Case Linking Requirements and Caveats 180

•Current Case Linking Requirements:

oThe Parts List for all cases must be identical in number and order

oThe Variable list for all cases must be identical and comparable

oMust be turned on when you load 2nd case

•Caveats:

oOnly 4 datasets can be case linked

oOnce turned Off, case linking cannot be turned back on (no catch up)

oUses context capability –whatever limitations on context files will apply to

case linking

Case Linking –How To 181

•Load up for first dataset, and perform as

many operations as you’d like

•Upon Loading the 2nd case

oSelect to Keep currently loaded data

oSelect Link Operations for All Cases

•The new case is loaded and all subsequent

operations are linked to the other datasets

•All else is take care of by EnSight - there is no

Ensight 10.2 Advanced Training September 2017 Presentation User Manual En Sight

Navigation menu

Versions of this User Manual:

Views

Navigation