The document discusses various digital file formats including raster graphics (JPEG, TIFF, GIF, BMP), vector graphics (PSD, AI, FLA, WMF), and methods for capturing and optimizing graphics. JPEG is used to compress photos, TIFF maintains quality on edits, GIF uses 256 colors for animations, and BMP displays accurate color. PSD preserves Photoshop layers, AI is a vector format, FLA is for Flash movies, and WMF works on Windows. Compression reduces file sizes for storage and transfer while optimization improves loading speed online. Factors like bit depth, scaling, and file naming impact file sizes and organization.

1. Digital Graphics
File Formats
Ollie Pulleyn

2. Raster Graphics
• Give a definition of Raster Graphics
Raster graphics are composed of pixels. A raster
graphic, such as a gif or jpeg, is an array of pixels
of various colours, which together form an
image.

3. Vector Graphics
• Give a definition of Vector Graphics
Vector graphics are comprised of paths, which
are defined by a start and end point, along with
other points, curves, and angles along the way.
A path can be a line, a square, a triangle, or a
curvy shape.

4. Raster Graphics

5. JPEG
Stands For Joint Photographic Experts Group
Used For/Example JPEG stands for Joint Photographic Experts
Group. JPEG is used to make huge image
files into small file size. It compresses the
files by 90%, and cuts the file size to
1/10th of the original
Advantage They are compressed and take up much
less room than a TIFF, BMP, or RAW. Most
items that allow saving under a JPEG also
allow how much you compress. A rather
large photo file can be compressed into a
rather small package for e-mail sending or
just space saving
Disadvantage When an image is converted to JPEG,
some of the information in the image is
lost. When JPEG images are continually
loading and saving the image can lose
quality.

6. TIFF
Stands For Tagged Image File Format
Used For/Example TIFF file using lossless compression may be
edited and re-saved without losing image
quality. TIFF files are used mainly when
someone wants to keep the image quality
without compressing the file down
Advantage One of the major advantages of TIFF files is
that they can be edited with most popular
image editing software on the market. All
popular operating systems have built-in
TIFF
Disadvantage Since compression is not used by default
on TIFF files, the file size is generally quite
big. This is a big disadvantage of TIFF files.
Uncompressed TIFF images can take up a
lot more space than a JPEG.

7. GIF
Stands For Graphics Interchange Format
Used For/Example GIF stands for Graphics Interchange
Format GIFs are a way to share animated
graphics online. They are still popular as a
low file size alternative
Advantage GIFS have relatively small file sizes this
means that they can be used easily online
as they can load quicker and still have a
good quality.
Disadvantage GIFS only have a maximum colour palette
of 256 colours so therefore can sometimes
look of a poorer quality than other types
of file or image. This can lead to the
images having more ‘blocky’ colours and
also looking slightly pixelated.

8. BMP
Stands For Bitmap Image File
Used For/Example BMP file format, also known as bitmap all
web browsers can read it, all graphic
software can read it, all word processors -
even quite old ones- can display it, and lot
of other application can use it which might
have problems with other file formats
Advantage BMPS are the most accurate way to display
colour in photographs. No dithering,
artefacts or down sampling is done unless
you do it yourself.
Disadvantage Bitmap images expanded to a larger size
look blocky and computer-like, and if you
don't follow the image's aspect ratio (4:1
for normal, 16:9 or 23:7 for widescreen)
you could distort the image

9. Vector Graphics

10. PSD
Stands For Photoshop Document
Used For/Example PSD file is a layered image file used in
Adobe Photoshop. PSD, which stands for
Photoshop Document, is the default
format that Photoshop uses for saving
data.
Advantage The layers are preserved when a file is
saved using the PSD file format
you can go back, at anytime, to make
changes to the layers.
Disadvantage PSDS are only used to save Photoshop
files. Web browsers cannot read PSD file
format

11. AI
Stands For Adobe Illustrator
Used For/Example AI is a proprietary file format developed by
Adobe Systems for representing single-
page vector-based drawings in either the
EPS or PDF formats
Advantage Wider compatibility for a native vector
format, most advanced vector format
available
AI are compatible with other Adobe
programmes such as Photoshop and can
be transferred
Disadvantage Newer versions may have compatibility
issues, not a standard file format
You need the correct software to actually
view it

12. FLA
Stands For Flash File
Used For/Example An FLA file is an Adobe Flash editable
movie or animation.
Advantage FLA files a good for creating movie or GIFS
They are good for making high quality files
without a large save file.
FLA can also use sound and video together
Disadvantage Web browsers cannot read FLA file
formats
You may not be able to view FLA files with
a slow internet connection

13. WMF
Stands For Windows Metafile Format
Used For/Example WMF stands for Windows Metafile
Format. Metafile means that this file
contains information that describes or
specifies another file.
Advantage WMV continues to have advantages over
many of the other video formats. WMV
files tend to be quite small considering the
amount of video information they
preserve.
Disadvantage The major disadvantage of WMV is its
compatibility with non-Windows
platforms. It is difficult to find Apple or
Linux players that are capable of playing
WMV files. For this reason, WMV has not
become a standard Web format, despite
its small size.

14. File Format Capture
and Optimising

15. Compression
Definition Compression is when a file is reduced to
save disk space for easier and faster
transmission over a network or the
Internet.
Advantage Compressing files allows more space on
your computer or hard drive
Compression makes files smaller allowing
more saves
Compression has faster file transfer
Disadvantage Slower access of compressed data it
consumes more resources when accessing
the compressed data.
Compression is lossy with bitmap images
and is quite time consuming

16. Image Capture
Method Scanner
How is it used for image capture of
graphics
The Scanner allows you to scan the image
to make a copy or save it to the computer
Method Camera
How is it used for image capture of
graphics
The camera is used to capture the image
itself
Method Graphics Tablet
How is it used for image capture of
graphics
A Tablet allows you to draw out or sketch
an image

17. Optimising
Why would you optimise? You would use optimise to make an image
clearer to ensure easy viewing on the web.
Optimising takes up less storage and is
easily loaded on the internet
How can you optimise? You can optimise an image by changing
the size of it in Photoshop. You can also
reduce the amount of colours that are
within the image. Reducing the amount of
pixels in a image will with the size of the
image
Advantage to optimising Non optimized images have larger file sizes
which mean optimized images are faster
to load online. You can also send them
quicker to
Disadvantage to optimising The larger the size of a file the longer the
image will take to download. Optimizing is
more time consuming to do

18. Storage

19. File Size
What could affect a Working Scale
(Photoshop) document file size?
You could use 8-bit which will use less
colours making less file size where as if
you use 16-bit you are creating more
colours to save making the file bigger
How could you reduce the file size of a
Working Scale document without
affecting quality?
If use a TIFF then it compresses the image
without loosing quality of it
What is an advantage of scaling up images
before exporting?
If you have a big image and scale it down
then the image wont loose quality or
texture
What is a disadvantage of scaling up
images before exporting?
Scaling up a small image will make the
image pixilated and blurry

20. File Naming Conventions
What naming conventions could you use
when creating your video game assets?
• I would name my assets useful things
like “Video Games Research” or “Video
Game designing” something simple
that allows me to know what's within
the folder
Why is it a good idea to accurately name
your assets?
Accurately naming your assets helps to
keep confusion down if it was called
something like “Work 2” and you needed
to edit or come back to it then it may be
quite hard to find if you accurately name it
then you will recognize it easily and save a
lot of time and confusion

21. Asset Management
Why would you use folders when storing
your assets?
Using folders helps to keep work organized
and easy to get to
What folders would you create and what
would you save within them
• I would name the folders something
that relates to what work I’d be storing
in for example say I had a PowerPoint
looking a research of video games I
would call the folder “Video Game
Research”