Which of the given options best describes the truthfulness of the following…
2023
Which of the given options best describes the truthfulness of the following statements? i) Clipping process determines each element into the visible and invisible portion. The visible portion is selected. An invisible portion is discarded. ii) Clipping can be applied through hardware as well as software. iii) Point clipping, area clipping and text clipping are the types of clipping.
- A.
i-True, ii-True, iii-False
- B.
i-True, ii-True, iii-True
- C.
i-True, ii-False, iii-True
- D.
i-False, ii-False, iii-False
Attempted by 46 students.
Show answer & explanation
Correct answer: B
i) Clipping process determines each element into the visible and invisible portion. The visible portion is selected. An invisible portion is discarded. (True)
This is the literal definition of clipping. In computer graphics, a "view window" or "clip window" defines what the user is supposed to see. The clipping algorithm evaluates geometric elements (lines, polygons, etc.), keeps whatever is inside the window boundaries, and discards or "chops off" anything outside of it.
ii) Clipping can be applied through hardware as well as software. (True)
Software clipping uses algorithms (like Cohen-Sutherland for lines or Sutherland-Hodgman for polygons) executed by the CPU or a software application before rendering.
Hardware clipping is built directly into modern Graphics Processing Units (GPUs). Dedicated hardware circuits handle the clipping process incredibly quickly during the geometry processing stage of the graphics pipeline.
iii) Point clipping, area clipping and text clipping are the types of clipping. (True)
These are standard, recognized categories of clipping based on the primitive being processed:
Point Clipping: Determines if a single coordinate (x, y) rests inside the window.
Area/Polygon Clipping: Clips solid filled shapes or polygons so that only the inner region remains visible.
Text Clipping: Determines how string characters are handled when they overlap the boundary (e.g., discarding the whole character, or splitting the character mid-letter).