WorksheetsHow 3-D Graphics Work - Complete Multiple Choice Test
Total questions: 18
Worksheet time: 12mins
What defines a picture as three-dimensional (3-D)?
It has height and width only.
It includes depth along with height and width.
It shows only flat symbols for quick recognition.
It is used only in cartoons.
Why are 3-D graphics considered synthetic?
They are drawn by hand.
They mimic real-life photos.
Their behavior is defined by software, not nature.
They are captured using a 3-D camera.
What is the purpose of the Z-buffer?
To track audio in video games.
To display high-definition images.
To calculate which objects appear in front or behind.
To store textures of characters.
What does surface texture help simulate?
What is the effect of anti-aliasing?
Makes objects disappear when they move.
Increases object sharpness by removing blur.
Reduces jagged edges by blending surrounding pixels.
Enhances frame rate by lowering quality.
Why is motion blur added to 3-D graphics?
To improve file sizes.
To hide visual errors.
To mimic how fast objects appear blurry in real life.
To decrease the realism of movement.
What is the importance of lighting in 3-D scenes?
It changes the game's audio cues.
It helps anchor objects visually and adds shading.
It makes the characters glow.
It blurs the background.
Why are graphics co-processors used?
It changes the game's audio cues.
It helps anchor objects visually and adds shading.
It makes the characters glow.
It blurs the background.
What is the purpose of a transform in 3-D graphics?
To change the color of surfaces.
To convert 2-D images into audio.
To adjust how an object is viewed, such as changing its size or angle.
To replace all textures with shadows.
Why is fluid motion difficult for a computer to generate?
A. Computers can only render cartoons.
B. Each frame must be rendered with extensive pixel and lighting calculations.
C. The CPU shuts down after each frame.
D. Fluid motion only exists in video footage.
What makes transforms especially demanding for a CPU?
They are rendered only in 2-bit color.
They must be animated at 5 frames per second.
They involve complex floating-point math for every object and frame.
They are outsourced to sound cards.
How do graphics boards assist the CPU?
They store video files in the cloud.
They handle audio rendering.
They share the load of rendering, lighting, and transforms.
They slow down the animation to match processing speed.
What special feature does the Voodoo 5 graphics board introduce?
Ultra-high-definition text editing.
T-buffer for improved anti-aliasing and motion blur.
Faster download speeds for games.
Real-time audio mixing for speakers.
What determines the number of pixels in a high-resolution display?
The screen’s refresh rate.
The total sound volume.
The product of screen width and height.
The number of 3-D shapes in the image.
What does a Z-value indicate in the Z-buffer?
The sound frequency of a scene.
The depth of an object relative to the viewer.
The weight of a 3-D model.
The volume of an object’s texture.
What is a texture map?
A graphic showing file locations.
A data layer applied to surfaces to simulate realism.
A roadmap for gaming levels.
A type of anti-virus program.
Why are reflections in graphics often blurred?
To conserve electricity.
To simulate the look of polished but imperfect surfaces.
To create artistic effects unrelated to realism.
To distract the viewer from flaws.
What does the T-buffer do?
Speeds up audio transitions.
Buffers game music in 3-D environments.
Enhances image realism by combining multiple frames for anti-aliasing.
Detects shadows in dark rooms.
