Business and Computing Deanery 3D Modelling Tools Week 13 Animation

Business and Computing Deanery

3D Modelling Tools

Week 13 Animation

3D Modelling Tools 2

This week Animation

Timelines Keyframes Constraints Video

3DS Max 7 Bible Chapter 29

Discuss your tests Discuss model A Look at the

schedule Organise

presentations Groups Subjects

Tutorials Bouncing a Ball Flying a Spacefighter


Learning Outcomes Demonstrate knowledge and a critical

understanding of the principles of three-dimensional modelling.

Apply the concepts and principles of three-dimensional modelling to the generation of digital objects, avatars and environments for use in game development.

To evaluate and effectively communicate different methods and approaches to the generation of three-dimensional models used in a real game.


Concepts What is animation? Modification of any

kind of object Light Material Camera

What can you change? Parameters

Position Rotation Scale

What parameters have been changed?

3ds max v7


Frames A series of still

images Frames

Persistence of vision Illusion of fluid

motion

3ds max v7


Frame rates Frame rate

Speed at which the images are displayed

Frames per second Different systems

have different rates

Standard rate in UK for output to film is 24fps 3ds max v7


Timeline controls VCR like section of the interface

9 Animation playback controls10 Animation keying controls14 Track bar15 Time slider

3ds max v7


Key framing Like traditional 2D

animation techniques

Specific frames Tweening

Computer calculates the parameters of the object’s position for each intermediate frame


Time controls Start or end Default scene starts with 100

If the output is set to 24 fps how long will this last?

Can be changed with the Time Configuration button

Auto Key Move to a frame, transform objects or

change their parameters. All changes register as keyframes.


Activity Create a scene with spheres, cones,

cylinders Make something move


Linking and dummies Used in creating

complex motions and building complex hierarchies

3ds max v7


Constraints Animation constraints are used to help

automate the animation process. Used to control an object’s

Position Rotation scale

A binding relationship with another object Requires one object and at least one

target object The target imposes specific limits on the

constrained object


Links and chains A Link constraint is

used to animate an object linking from one target object to another

The Link constraint causes an object to inherit the position, rotation, and scale of its target object

3ds max v7


Motion paths A path constraint

restricts an object's movement along a spline

The spline curve (target) defines a path of motion for the constrained object.

3ds max v7


Keyframe weighting Affects the behaviour of the motion path Linear weighting

Keyframe to keyframe in a straight line TCB

Tension Amount of curvature in the path before and after

the keyframe Continuity

Adjust how tangent the path is to the control point Bias

Maximum extreme point


Attachment The Attachment

constraint is a position constraint that attaches an object's position to a face on another object

By keying different attachments over time, you can animate the position of an object over the irregular surface of another object 3ds max v7


Pivot points and axes An Orientation

constraint causes an object’s orientation to follow the orientation of an object

3ds max v7


Space warps Nonrenderable

objects that affect the appearance of other objects.

Space warps create force fields that deform other objects, creating the effect of ripples, waves, blowing wind, and so on.

3ds max v7


Types rendering Renders viewport view Quick render Render to file

Still image, frame Animation

Render to print Quicktime VR

3ds max v7


File types The rendered output can be a still image

or an animation A selection of file types

AVI File (AVI) BMP Image file (BMP) Encapsulated PostScript format (EPS, PS) JPEG File (JPG) MOV QuickTime file (MOV) PNG Image File (PNG) TIF Image File (TIF)

Which are used for still or animation?


Render output - avi Compressor

Set the codec (compressor/decompressor)

Compression Quality The higher you set the quality,

the larger the file size will be. Lossy technique

Keyframe Rate Specify the interval between

the delta keyframes used to compare one frame with another and generate in-between frames. 3ds max v7


Render settings Resolution

Height and width in pixels

Consider aspect ratio Colour depth

8 bit allows 256 colours 24 bit allows 16 million More colours helps

reduce banding and errors

Anti-aliasing Active time segment Alpha channel

Atmospherics Eg. fog

Effects Eg. Blur

Advanced lighting Use a radiosity solution

or light tracing in the rendering

Render output


Activity – output as a video Create an animation and output as an AVI Set the following

Active time segment 320 x 240 Files > Save as AVI Give it a name and note where you are saving

it Click Setup

Use Cinepak compression 15 fps 50% compression

Click Render


Ghosting Ghosting is a

method of displaying wireframe of an animated object at a number of frames

Used to analyze and adjust your animation Views menu > Show

Ghosting 3ds max v7


Portfolio 7 Create a scene with spheres, cones,

cylinders Create a motion path between these

shapes Add an object to the path

A box to represent a vehicle Print a screen grab of your

animation showing Ghosting


Questions Describe the process of exporting

video What are the parameters, who would

you set them for display of the video over the web

Describe the process of animating a moving object with wheels

Discuss how to make an realistic animation of a bouncing ball


Impendent study Directed reading 3DS Max 7 Bible

Read Chapters 22 and 29 Portfolio 7

Due Week14 Presentation Tutorials

Bouncing a Ball Flying a Space-fighter


References 3ds max v7, (2005) User Reference

and Tutorials Murdock K.L., (2005) 3DS Max 7

Bible, John Wiley & Sons Inc, ISBN: 0764579711

Documents

Business and Computing Deanery 3D Modelling Tools Week 13 Animation