NOTES:

Delilah Eryavec

Period 2, Graphic Design 1

1/25/17

Notes: ‘Vector vs. Bitmap’

·       Vector:

Is made by math, and can be blown up very large and still look smooth and created a smoother effect. Ex. Word documents and letters, when you enlarge the words, it’d still look smooth.

·       Bitmap:

Made up from pixels.

Bezier Curve: Lines made up of data that can be enlarged and still look crisp. You can add more numbers to make it a larger scale. To make it three dimensional, you add another curve.

(NURBS: Non-Rational, Universal, Rational, B, Spines)

--Raster (Bitmap, or pixels): A raster is an image or images that is created with pixels. It is usually applied to a photo or video. Is can be in different digital formats like jpg, gif, png, psd, tiff, mpg, mov, wmv, mp4.

Raster features:

·       Image file format standard for photography and video.

·       Raster is dependent on resolution.

·       For Raster, more pixels = a higher resolution.

·       You can reduce a Raster image in size and it’ll still look sort of crisp, but you cannot blow it up without reducing image quality and detail.

Raster (Bitmap):

Compromised of pixels and each pixel has a color value. More pixels = a larger file size.

--Vector: Mathematically based method of creating line data. It was popularized by Pierre Bezier to help with automobile manufacturing techniques for Renault.

Features of Vector:

·       Vector files are scalable without losing image quality

·       Because they are math based, generally, vector files are smaller in file size.

·       Vector files aren’t internet browser friendly, require the proper software for display such as Adobe Flash. (A downside)

Vector Graphics:

·       Vector graphics can be stored in different formats including: AI, PDF, WMF, FLC

·       Font data is stored as vector.

·       Vector graphics are resolution ‘independent’, when Raster graphics are resolution ‘dependent’

Early video games used vector data,  Mario and games like Streetfighter used pixels