3D Graphics Concepts and Techniques

The video explores fundamental methods in 3D computer graphics, including 3D projection, wireframe rendering, and different types of projections like orthographic and perspective. It explains the use of polygons and meshes, scanline rendering, and antialiasing. The video also covers occlusion handling with Painter's Algorithm and Z-buffering, lighting and shading techniques, and the role of textures. Finally, it discusses rendering optimizations using GPUs for efficient processing.

What is the process of converting 3D coordinates to a 2D plane called?

• 3D Rendering

• 3D Projection

• Coordinate Flattening

• 2D Mapping

Which type of 3D projection makes parallel lines appear parallel in the projection?

• Convergent Projection

• Orthographic Projection

• Perspective Projection

• Linear Projection

Why are triangles preferred over other shapes in 3D graphics?

• They are easier to color

• They require less memory

• They unambiguously define a plane

• They are faster to render

What is the main purpose of antialiasing in 3D graphics?

• To smooth out jagged edges

• To improve texture quality

• To enhance lighting effects

• To increase polygon count

Which algorithm sorts polygons from farthest to nearest to handle occlusion?

• Painter's Algorithm

• Scanline Rendering

• Z-Buffering

• Back-Face Culling

What is the main advantage of Z-Buffering over the Painter's Algorithm?

• It doesn't need to sort polygons

• It improves lighting effects

• It enhances texture mapping

• It requires less memory

What is the simplest lighting algorithm that makes polygon boundaries noticeable?

• Gouraud Shading

• Phong Shading

• Flat Shading

• Texture Mapping

Which shading technique varies color across the surface for smoother output?

• Flat Shading

• Phong Shading

• Texture Mapping

• Z-Buffering

What is the process of applying an image to a 3D surface called?

• Texture Mapping

• Polygon Filling

• Mesh Smoothing

• Surface Shading

What is the primary function of a GPU in 3D graphics?

• To store textures

• To process graphics computations quickly

• To manage memory allocation

• To enhance sound quality