Q.1 Which rendering technique is most commonly associated with real-time applications like video games?
Ray Tracing
Rasterization
Path Tracing
Radiosity
Explanation - Rasterization is the standard method for real-time rendering in games due to its speed compared to ray tracing and path tracing.
Correct answer is: Rasterization
Q.2 What is the main advantage of ray tracing over rasterization?
Lower memory usage
Better global illumination and realism
Faster performance
Less GPU load
Explanation - Ray tracing simulates the path of light rays, enabling highly realistic lighting and reflections compared to rasterization.
Correct answer is: Better global illumination and realism
Q.3 Which of the following APIs introduced ray tracing support natively?
OpenGL
DirectX 12
Vulkan
Metal
Explanation - DirectX 12 introduced DirectX Raytracing (DXR) which allows developers to implement real-time ray tracing.
Correct answer is: DirectX 12
Q.4 What does VR stand for in computer graphics trends?
Visual Rendering
Virtual Reality
Vector Rasterization
Virtual Resolution
Explanation - VR stands for Virtual Reality, an immersive technology trend in graphics.
Correct answer is: Virtual Reality
Q.5 Which technique helps in reducing aliasing in real-time graphics?
Bloom
Anti-Aliasing
Ambient Occlusion
Subsurface Scattering
Explanation - Anti-Aliasing smooths jagged edges in rendered images, improving visual quality.
Correct answer is: Anti-Aliasing
Q.6 Which company pioneered RTX GPUs for real-time ray tracing?
Intel
AMD
NVIDIA
Qualcomm
Explanation - NVIDIA introduced RTX GPUs that support real-time ray tracing using dedicated RT cores.
Correct answer is: NVIDIA
Q.7 Which of the following is a key challenge in AR graphics rendering?
Frame rate optimization
Global shading models
High poly-count rendering
Excessive polygon tessellation
Explanation - In AR, maintaining high frame rates is critical to avoid lag and ensure user comfort.
Correct answer is: Frame rate optimization
Q.8 Metaverse development relies heavily on which field of computer graphics?
3D modeling
2D rendering
Sprite animation
Bitmap imaging
Explanation - Metaverse applications require extensive 3D modeling to build immersive environments.
Correct answer is: 3D modeling
Q.9 Which algorithm is widely used for simulating realistic cloth in graphics?
Particle Systems
Finite Element Method
Spring-Mass Model
Marching Cubes
Explanation - Cloth simulation often uses spring-mass systems to approximate fabric elasticity and bending.
Correct answer is: Spring-Mass Model
Q.10 Which term refers to rendering an image in advance and reusing it to save time?
Pre-rendering
Dynamic Rendering
Ray Marching
Screen-space Rendering
Explanation - Pre-rendering allows storing a scene’s graphics ahead of time to reduce computational demand during runtime.
Correct answer is: Pre-rendering
Q.11 Which concept allows photorealistic material rendering using texture maps?
Phong Shading
Physically Based Rendering (PBR)
Flat Shading
Raster Shading
Explanation - PBR uses material maps (albedo, roughness, metallic) to achieve realistic surface interactions with light.
Correct answer is: Physically Based Rendering (PBR)
Q.12 In modern graphics, what does 'DLSS' stand for?
Deep Level Shader Simulation
Dynamic Lighting Shader System
Deep Learning Super Sampling
Direct Lighting System Shader
Explanation - DLSS uses AI models to upscale lower-resolution images into higher-quality frames.
Correct answer is: Deep Learning Super Sampling
Q.13 Which rendering technique is primarily used for creating offline movie-quality graphics?
Ray Tracing
Rasterization
Deferred Shading
Shadow Mapping
Explanation - Film-quality rendering uses ray tracing to generate realistic shadows, lighting, and reflections.
Correct answer is: Ray Tracing
Q.14 Which graphics trend involves combining real and digital environments?
Mixed Reality
Rasterization
Global Illumination
Ambient Occlusion
Explanation - Mixed Reality blends physical and digital worlds, extending beyond AR and VR.
Correct answer is: Mixed Reality
Q.15 Which open-source graphics engine is popular for real-time rendering and games?
Unity
CryEngine
Godot
Unreal Engine
Explanation - Godot is an open-source graphics engine gaining popularity due to its lightweight and community-driven approach.
Correct answer is: Godot
Q.16 Which of the following techniques enhances realism by simulating soft shadows in creases?
Ambient Occlusion
Bloom
Normal Mapping
Cel Shading
Explanation - Ambient Occlusion simulates soft shadows in areas where light is occluded, increasing realism.
Correct answer is: Ambient Occlusion
Q.17 Which hardware feature made real-time ray tracing feasible?
Tensor Cores
RT Cores
ALU Units
Shader Cores
Explanation - NVIDIA’s RT cores accelerate ray tracing calculations, making real-time implementation possible.
Correct answer is: RT Cores
Q.18 What does 'holographic display' refer to in graphics trends?
3D displays viewable without special glasses
VR headsets with lenses
Projection on flat surfaces
Animated 2D wallpapers
Explanation - Holographic displays create 3D visuals that can be seen without wearing VR/AR devices.
Correct answer is: 3D displays viewable without special glasses
Q.19 Which shading model is used in PBR to simulate metallic surfaces?
Cook-Torrance
Lambertian
Blinn-Phong
Gouraud
Explanation - The Cook-Torrance BRDF model is widely used in PBR for simulating realistic metallic and rough surfaces.
Correct answer is: Cook-Torrance
Q.20 What is the role of tessellation in modern GPU pipelines?
Increase polygon count for detail
Reduce texture load
Improve lighting
Handle shadows
Explanation - Tessellation dynamically increases polygon count, adding fine detail to models.
Correct answer is: Increase polygon count for detail
Q.21 Which technology uses AI to animate realistic facial expressions?
Blendshapes
Neural Rendering
Motion Capture
Voxelization
Explanation - Neural rendering leverages AI to create highly realistic facial animations.
Correct answer is: Neural Rendering
Q.22 Which graphics concept allows interaction with 3D models in a browser?
WebGL
OpenCL
CUDA
DirectDraw
Explanation - WebGL enables rendering 3D graphics directly in browsers without plugins.
Correct answer is: WebGL
Q.23 What is the role of a shader in graphics rendering?
Calculates pixel and vertex colors
Stores 3D models
Encodes sound effects
Runs AI models
Explanation - Shaders are programs that calculate lighting, color, and surface appearance during rendering.
Correct answer is: Calculates pixel and vertex colors
Q.24 Which file format is popular for storing 3D models in AR/VR applications?
OBJ
MP4
PNG
JPEG
Explanation - The OBJ file format is widely used for storing geometry data of 3D models in AR/VR.
Correct answer is: OBJ
Q.25 Which emerging field combines AI with graphics to generate new images from text prompts?
Procedural Generation
Generative AI
Voxel Rendering
Subdivision Surfaces
Explanation - Generative AI models like diffusion networks can create images from text prompts, revolutionizing graphics design.
Correct answer is: Generative AI