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Understanding the Differences Between 2D and 3D Graphics

Explore the key differences between 2D and 3D graphics, focusing on their axes of representation: width, height, and depth. Discover how 3D modeling is performed through specialized applications, beginning with basic shapes and progressing to final rendering. Learn about color representation, including the electromagnetic spectrum and how human eyes perceive different palettes, from 1-bit to 24-bit color depths. Familiarize yourself with common file formats for graphics like JPEG, GIF, BMP, and TIFF that are vital for digital imaging.

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Understanding the Differences Between 2D and 3D Graphics

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Presentation Transcript

  1. IMAGE 3D

  2. Look at these pictures

  3. What’s the difference? • 2D – x(width) and Y (height) axis • 3D – x(width) and Y (height) axis • AND Z (depth)

  4. How we do 3D model • Using 3D applications • Start with a shape • Define the shape and create • Finally -> RENDERING!!!

  5. Colors and palettes

  6. Colors frequency of light wave of electromagnetics spectrum - human eyes response

  7. Palettes Common Palettes 1 – bit (dwicolor) 4 – bit (16 color) 8 – bit (256 color) 16 – bit (Thousands colors) 24 – bit (millions colors) Higher bit = rich color 256-colors, VGA, 8 bit

  8. Dithering… Color value pixel define to the closest matching color Example: Scanned image … 24-bit scanned image (millions colours) to 8-bit (computer)

  9. File format Apple – PICT (Mac users) Windows – BMP (DIBs – device independent bitmap) TIFF – desktop publishing DXF & IGF – drawn object (autoCAD) JPEG & GIF – most commonly use

  10. The end

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