class notes |
| Lecture 4: Audio, Projects, Hierarchy, Principles
Review AUDITION Features
Music and Variety
Your audio should have variety so that you can create an animation that will keep the audience's interest. Use audio that is
soft and loud, dynamic and not dynamic, fast and slow, lots of texture, no texture, high pitch and low pitch. Becareful, too much variety will sound like
chaos and too little will be like Techno.
gesture - a sound that draws attention to itself
texture - you can have a number of things happening all at once in music. The texture of a composition can be described by the number and quality of this layering of elements. Sometimes texture can be described as thick or rough or smooth or light texture. You can create a heavy texture by having background and foreground audio and also layering multiple sounds.
rhythm - is the variation in length of the sounds. Rhythm needs time. It also deals with the accentuation
of the sounds over time.
melody - patterns of changing pitches and durations of sounds. Melody relates to pitch and requires rhythm to be there.
foreground and background audio - use layers of audio to create a more dynamic texured audio composition
Listen to lots of short audio compositions
Animation / Audio Concepts:
Art and Design concepts as it relates to music
Ease in Ease Out
How to start and end an animation
Setting Up Projects:
File - Project - New Project (or Edit Current)
Change the project location to the D:/students/yourname and name the project
3D Textures Floating through the Surface of the Objects
If you use a 3D texture on animated object, the texture will stay in the same position and the object will appear to float through the texture.
Watch an object move through a 3D Textures
This is how you correct this:
- Parent the 3D texture to the object
Animating Color and Textures:
Make an object and then open the Windows - Rendering Editors - Hypershade
Make a new lambert shader
In the Attribute Editor, change the color of the texture (only)
Assign the texture to your object
Go to the first frame of the color change and make sure the texture is selected in the Hypergraph and
In the Attribute Editor, RMB on the word Color and Set Key
Go to another frame and then change the color and RMB on Color and Set key
Repeat as often as needed
Remember that when you animate a texture color, it will be animated on the frames you set even if you assign that texture to another object.
Animation Curve Attributes:
If you click the Arrow after Color, you will get to the Anim Curve Attributes which let youchange the frames that the animation occurs on (it takes a little bit of time to update the timeline sometime).
To animate the attributes of a texture, you do the same as above to any of the attributes. Use a 2D texture and try it.
Go to the frame you want the fade to start. RMB the word Transparency in
the Attribute Editor and Set Key.
Go to the end frame where you want it invisible and Set Key on Transparency.
To Remove the Animated Texture/Color/Transparency:
RMB on the name and Break Connection
To see and manipulate the animation curve in the Graph Editor:
Select the Shader in the Hypershade window
Go to the Attribute Editor and click Select at the bottom of the Attribute Editor
Open the Graph Editor
With your cursor in the window hit F
Make sure the Shader is listed in the Left column
Adjust the curves to make a slow change in and a slow change out (Ease in / Ease Out)
Graph editor review
Can use the icons on the left Toolbar (4th from bottom) to jump directly to the Graph Editor
If you have not set your preferences before getting into Maya, (which you should really do), and you set keyframes, you
will need to convert your curves to Weighted Tangents:
In the Graph Editor - Curve menu
Convert to Weighted Tangent
Reminder: the line is the change in the value of the parameter over time. You generally want the line to start gradually (spline) and then pick up speed then slow down.
If the movement is robotic or abrupt, then you would not have the curve gradually taper as it comes to an end (use linear).
To see the color change curves in the graph editor, you need to have the Texture selected in the Hypershade and then in the Attribute Editor, click Select
Look in the Graph Editor and you will see the RGB values - change them to splines and set the curves
Hierarchy and Grouping
Select the objects you want to group together and Edit Menu - Group or Control G
This creates a node and all objects are under this new node (don't forget to name it)
A group is useful if you want to animate a bunch of objects as a complete whole.
You can also animate the individual object by going into the group and setting keys on the individual object.
Ex: Set some keys on the group then go into the Outliner and set keys on an individual object.
Select the child first then the parent last (shift click)
Edit Menu - Parent or hit p
This makes the second object you selected the main node that will control the child object
You can animate the parent and the child will also animate but you can also go in and animate the child individually
You can also Middle Mouse button drag an object into the parent to make it a child
Make sure you center your pivots after grouping or parenting an object
You must select the group by selecting it in the Outliner before you move, rotate or scale it. You can just click the parent object to select it and
you will control the child objects too.
Importing sound to Maya
Put the sound file into Maya - projects - YourProject - sound folder on the D:/students/yourname/yourproject/
File - Import
Select Audio All Formats
Select the sound file
Go to the Timeline and RMB and select Sound then select the name of your sound
It will show up in the timeline
Go to Window - Settings/Preferences - Preferences and select Timeline
Change Height to make it taller to see the audio better
Go to the Timeline and RMB and select Sound then select the name of your sound then OPTIONS
In the Attribute Editor you can change the Offset to move the starting time of your audio by the number of frames you say.
Exercise 1: Synchronization
- Make an object like a torus or sphere
- Move it from the center
- hit INSERT to place the pivot point in the middle of the scene
- hit INSERT again to turn it off
- With the object selected, Edit menu - Duplicate Special OPTIONS
- Edit - Reset
- Change the Rotate Y to 60 and make 6 copies
- Import a sound and increase your timeline Height
- Make another object and place it in the center
- Parent all your objects to this center object
- Each time you have a strong beat, make something happen to at least one of your objects
- You need to do each of the following at least once:
- Change the color
- Change the size
- Change the position
- Change the rotation
- Set keys on the Parent for at least one beat in your composition (we should see all elements effected)
- Save this file to turn in to the homework folder