Vector and 3d geometry
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Questions and Answers

What is a 2D texture map?

  • A texture map used for 2.5D rendering
  • A texture map with two dimensions, typically indexed by uv coordinates (correct)
  • A texture map with three dimensions, typically indexed by xyz coordinates
  • A texture map used for pseudo 3D rendering

    • What is the purpose of a 3D paint tool in computer graphics?

  • Applying edge detection and blurring to 3D models
  • Creating pseudo 3D effects in 2D images
  • Digital painting of multiple texture map image channels directly onto a rotated 3D model (correct)
  • Generating 3D models from scratch

    • What does a 3D unit vector represent?

  • A vector with four dimensions
  • A vector representing pseudo 3D space
  • A vector used for blurring in 3D graphics
  • A unit vector in 3D space (correct)

    • What is the purpose of a 2.5D rendering?

    <p>Rendering whose result looks 3D while actually not being 3D or having great limitations</p> Signup and view all the answers

    What does a 4D vector commonly hold in graphics code?

    <p>Homogeneous coordinates or RGBA data, or simply a 3D vector with unused W to benefit from alignment</p> Signup and view all the answers

    Study Notes

    Texture Maps

    • A 2D texture map is a 2D image or pattern that is applied to a 3D object to give it visual detail and texture.

    3D Paint Tools

    • A 3D paint tool in computer graphics is used to add color, texture, and other visual effects to 3D models and objects.

    3D Unit Vectors

    • A 3D unit vector is a vector with a length of 1 that is used to represent direction and orientation in 3D space.

    2.5D Rendering

    • 2.5D rendering is a technique used to create a 3D-like effect by adding depth and visual interest to a 2D image or scene.

    4D Vectors

    • In graphics code, a 4D vector commonly holds homogeneous coordinates (x, y, z, w) that represent a 3D point or vector in a 4D space.

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    Maths class 12th

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