Computer Graphics - Chapter 10

Chapter 10

Why is it important to know an algorithm's efficiency class/complexity class?

To optimize the efficiency of different algorithms and check whether an algorithm is suitable for large amounts of data.

efficiency class

efficiency of the algorithm, how fast it works and how well it handles growing data sets.

complexity class

complexity of the algorithm - whether the algorithm finds all possible correct solutions.

Steps in 3D Graphics Creation

3D modeling, Rendering, Display.

Rendering

Creating a realistic image from a 2D or 3D model using a computer program.

ray tracing

rendering technique that simulates how light interacts with objects to create realistic images ( reflections ,shadows)

Steps in Animation Projects

storyboard, key-frames, in-betweening.

Storyboard

a series of drawings that shows the main scenes of an animation, helping to plan the story.

Key Frame (Animation)

defends the most important moments in the animation, like the beginning and end of a character’s movement

In-betweening

fill the gap between keyframes to create an illusion of smooth motion.

Mechanics Useful in Natural Movement Simulation

Dynamics and Kinematics.

Projection Plane

A flat surface where a 3D model is projected during the rendering process.

Methods for Creating Polygonal Meshes

Mathematical equations, Bezier curves and surfaces, Procedural models.

Local Lighting Model

A lighting model that does not consider object interactions, is less realistic and requires fewer calculations.

Global Lighting Model

A lighting model that considers how objects affect each other, gives more realistic results and requires more calculations

Specular Light

Maintains the light source's colour, noticeable on smooth surfaces.

Diffuse Light

Diffuse in different directions, partially taking the colour of the reflecting surface.

Ambient Light

Evenly distributed throughout the scene without a specific source.