Computer Graphics - Chapter 10
Term: Efficiency Class/Complexity Class
Definition: A way to compare the efficiency of different algorithms and assess their suitability for large datasets.
Term: Steps in 3D Graphics Creation
Definition: 1) 3D modeling, 2) Rendering, 3) Display.
Term: Rendering
Definition: Determining how a 3D model will appear when projected onto a flat surface (projection plane).
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Term: Steps in Animation Projects
Definition: 1) Storyboard, 2) Keyframes, 3) In-betweening.
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Term: Mechanics Useful in Natural Movement Simulation
Definition: Dynamics and Kinematics
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Term: Projection Plane
Definition: A flat surface where a three-dimensional model is projected during the rendering process.
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Term: Methods for Creating Polygonal Meshes
Definition: Mathematical equations, Bezier curves and surfaces, Procedural models.
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Term: Local Lighting Model
Definition: A lighting model that does not consider object interaction, making it simpler and computationally less intensive.
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Term: Global Lighting Model
Definition: A lighting model that accounts for how objects affect each other, leading to more realistic results but with higher computational costs (e.g., ray tracing).
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- Specular Light:
Maintains the light source's colour, noticeable on smooth surfaces.
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- Diffuse Light:
Scatter in different directions, partially taking the colour of the reflecting surface.
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- Ambient Light:
Evenly distributed throughout the scene without a specific source.
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Term: Frame (Animation)
Definition: A still image within a sequence of images in an animation.
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Term: Key Frame (Animation)
Definition: An image at a specific point in time that represents an important moment in the animation.
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Term: In-betweening
Definition: The process of creating the intermediate frames between key frames to create smooth motion in animation.
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Term: Steps in 3D Graphics
Definition: 1) Modeling, 2) Rendering.
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Term: Local Lighting Model
Definition: A model that calculates lighting without considering how light interacts between different objects.
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Term: Global Lighting Model
Definition: A model calculates lighting by considering interactions between objects, such as light bouncing between surfaces (e.g., through ray tracing).
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Term: Specular Light
Definition: Light that reflects without scattering, maintaining the light source's colour.
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Term: Diffuse Light
Definition: Light that scatters in various directions and partially takes on the colour of the surface it reflects from.
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Term: Ambient Light
Definition: Light is evenly distributed across the entire scene with no specific source.
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