Computer Graphics MCQs with Answers
Practice important Computer Graphics MCQs with answers and explanations.
Multiple Choice Questions
Q731: What is the fix-up distance used for in sub-pixel accuracy?
- A: Distance of the vertex from the next scanline
- B: Distance between edges
- C: Distance between texels
- D: Distance between color points
View Answer
A
Q732: In the Bilinear Sampling method for texture mapping, the coordinates u0 and v0 represent which values?
- A: Floor values of u and v
- B: Interpolated texture coordinates
- C: Vertex coordinates
- D: Final pixel color values
View Answer
A
Q733: The DDA algorithm for triangle rasterization uses the slope of the triangle edges to calculate _______.
- A: Edge intersections with scanlines
- B: X-coordinate of vertex positions
- C: Position of texture coordinates
- D: Lighting calculations
View Answer
A
Q734: What is the main advantage of using texture mapping in triangle rasterization?
- A: Reduces the number of triangles needed for an object
- B: Improves lighting calculations
- C: Renders higher resolution images
- D: Minimizes color distortions
View Answer
A
Q735: In the sub-texel accuracy method, fractional values of vertex coordinates are used to _______.
- A: Prevent visible pixel jumps
- B: Increase the speed of rendering
- C: Reduce memory usage
- D: Increase triangle count
View Answer
A
Q736: Which of the following techniques can be used to achieve smooth shading in triangle rasterization?
- A: DDA interpolation for colors
- B: Direct vertex coloring
- C: Using shaders
- D: Interpolation of normals
View Answer
A
Q737: The DDA algorithm can be modified to account for fractional vertex positions in the triangle using _______.
- A: Sub-pixel accuracy
- B: Sub-texel accuracy
- C: Antialiasing
- D: Edge detection
View Answer
A
Q738: The general method for flat filling triangles involves finding the points of intersection with edges using _______.
- A: Linear interpolation
- B: Cubic interpolation
- C: Binary search
- D: Recursive depth-first search
View Answer
A
Q739: Which of the following describes the purpose of the sub-texel accuracy technique?
- A: To interpolate values accurately across small pixel distances
- B: To speed up texture mapping
- C: To create a more pronounced texture effect
- D: To improve the speed of sub-pixel rendering
View Answer
A
Q740: In the pseudocode for bilinear sampling, which method is used to obtain the texel colors?
- A: Weighted average lookup
- B: Floor rounding
- C: Rounding to the nearest texel
- D: Linear interpolation
View Answer
A