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Computer Graphics!

final flashcards

pixel a single point in a raster image
raster A scanning pattern of parallel lines that form the display of an image projected on a cathode
Crt Cathode Ray Tube
Lcd liquid crystal display
Cones cone
trichromatic vision the condition of possessing three independent channels for conveying color information, derived from the three different cone types, red blue and green
spectrum a band of seven colors obtained after white light is split. Red orange yellow green blue indigo violet.
image resolution the frequency of pixels within a given area of a document, typically one inch
moniter resolution the number of distinct pixels in each dimension that can be displayed
output resolution The resolution of the device used for the final output of a digital file expressed as dots per inch (dpi)
temporal resolution frames per second, fps
color resolution the number of bits used to represent the color of a single pixel in a bitmapped image
rgb color This additive colour model describes a pixel’s colour in terms of a Red, Green and Blue component
true color 24 bit
bit depth the number of bits used to store information about each pixel of an image
indexed color reduced color mapping of 8
clut – color look up table
swatch the colors you are using
hsl hue, saturation, lightness
aliased a jaggy edge
pixilated single pixels are visible to the naked eye
anti-aliased making a jaggy edge look smooth
banding the resolution is not very high and the colors don’t blend, instead they appear in a row of bands
dithering attempt to approximate a color from a mixture of other colors, in order to fix banding.
Resizing changing the size of an image without deleting any information
Resampling changing the size of an image while deleting information
Interpolation increase image size without pixelating by using original pixel information
Selections path, what you are working on
alpha channels a portion of each pixel's data that is reserved for transparency information
image layers transparencies lying on top of each other
asjustment layers you can see through them but they don’t change anything actually below them. So you can apply an adjustment on a layer and it will become an adjustment layer
vector vs. bitmap. Vector illustration is object oriented. Geometry based as apposed to pixel based. Lines are crisper and cleaner than bitmap lines. vector graphics are called resolution
Path Line between two or more points. A Path itself is the skeleton of an object you are making, it is nothing, it doesn’t print.
anchor point An exact location in space. In an open path, the starting and ending anchor points are called end points
Segment a part of a line that is bounded to two anchor points
Bezier curves vector curves. used to model smooth curves that can be scaled indefinitely. "Paths."
Direction lines control a curve’s height and slope
Direction points Edit by dragging the direction points
Strokes appearance of line segments. A linear portion of the path and its characteristics. The outline around a shape. You can change its Width, color, style
Fills the open area inside a closed path
Compound paths consists of two or more paths that interact with each other
Shape modes add, subtract, intersect, and exclude shapes
Pathfinders pallet In illustrator used to combine paths, divide objects, subtract shapes, etc.
Animation the rapid display of a sequence of images in order to create the illusion of movement
Kinetograph designed for films to be viewed individually through the window of a cabinet housing its components
Persistence of vision Because we see images a split second longer than they actually appear, a serious of pictures in sequence appear to be one continuous motion picture
Keyframe a drawing that defines the starting and ending points of any smooth transition
Tweening tweens can be used to change shape and size (morphing), position, rotation, color, and transparency
Cycles, loops, sprites a short sequence is repeated several times to form a longer action
Exaggeration – to make an expression appear realistic in an animation you must over exaggerate it
Squash & stretch techniques to make things appear more real
Anticipation viewers are prepared for the next movement and expect it before it actually occurs
Point of view effects viewers feelings and impressions of the scene
Close ups– add varietymake the viewer pay attention to what the director wants them to see
Zooming Zooming in intensifies the action or emotion zooming out has a calming affect
Panning feels as if the viewer’s head is turning with the camera
Cuts the most common quick shifts of view
Fades indicates that there has been a complete change in time…
Wipes tell the viewer a change in location is happening
Ivan Sutherland The father of computer graphics. As a graduate student at MIT he wrote Sketchpad as his doctoral thesis.
Winsor mckay gertie the dinorsaur. One of the most influential films in the history of animated films, early 1900’s
Otto messmar felix the cat
Felix the Cat First animate character to have marketed merchandise, 1920’s
The Fleischer bros koko the clown, betty boop, popeye, 1920’s
Walt Disney steamboat willie (mickey mouse). First synchronized sountrack (mickey mousing), 1928. Snow white and the seve dwarfs. First full length animated film. Cost 1.5 mill to make and earned more than 1.5 billion, 1937
Chuck jones warner bros animator. Bugs bunny, daffy duck, elmer fudd, porky pig, pepe lepew… 1938. How the Grinch stole Christmas – 1960’s
Mel blanc worked for warner bros as the voice of Bugs Bunny, Daffy Duck, Porky Pig, Sylvester the Cat, Tweety Bird, and hundreds of others
John lasseter chief creative officer at Pixar and Walt Disney Animation Studios
Pixar animation studio in emeryville, subsidiary of Disney. began in 1979 as the Graphics Group, part of the Computer Division of Lucasfilm
Tron one of the first movies to make extensive use of any form of computer animation, and is celebrated as a milestone in the computer animation industry – 1982
Toy story 1995 first disney/pixar film to be made. First feature film to be made with computer generated imagery
3d computer graphics Modeling – a wireframe is made up of polygons in a virtual 3D space containing an x, y, and z axis
Wireframe a visual presentation of a three dimensional or physical object used in 3D computer graphics
Polygon –used to compose images that are three dimensional in appearance
Shading a color, texture map, or pattern is added
Texture map a method for adding detail, surface texture (a bitmap or raster image), or color to a computer
Rendering the process of creating 2d image or animation from the 3d data you have created
Live action animation done with real people or objects
Motion capture White spots are attached to a skin
Virtual camera A virtual camera system aims at controlling a camera or a set of cameras to display a view of a 3D virtual world.
Digital puppetry the manipulation and performance of digitally animated 2D or 3D figures and objects in a virtual environment that are rendered in real
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