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Lighting and shading in computer graphics



Shading

9.21.2017 | Jessica MacAdam

The first image below has the faces of the box rendered, but all in the same color. Edge lines have been rendered here as well which makes the image easier to see.

Light originates from a single point, and spreads outward in all directions.

Upon rendering, all objects in the scene are brightened with the specified intensity and color. This is the simplest type of lighting to implement and models how light can be scattered or reflected many times producing a uniform effect. This type of light source is mainly used to provide the scene with a basic view of the different objects in it.

Shading

6.18.2017 | Jessica MacAdam

In computer graphics, shading refers to the process of altering the color of an object/surface/polygon in the 3D scene, based on things like (but not limited to) the the surface's angle to lights, its distance from lights, its angle to the camera and material properties (e.g. bidirectional reflectance distribution.

Light originates from a single point, and spreads outward in a cone. Models a Spotlight.

This produces diffuse, non-directional lighting throughout the scene, casting no clear shadows, but with enclosed and sheltered areas darkened. Ambient lighting can be combined with ambient occlusion to represent how exposed each point of the scene is, affecting the amount of ambient light it can reflect.

Lighting and shading

8.20.2017 | Logan Miers
Lighting and shading in computer graphics

CAP4730: Computational Structures in Computer Graphics Lighting and Shading Outline •Lighting •Lighting models •Ambient •Diffuse.

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Published on Dec 16, 2015.

Lighting and Shading Models

7.19.2017 | Logan Miers
Lighting and shading in computer graphics

Computer Vision visibility? light source pixels reflection. Computer Graphics camera center surface. What's the intensity value (and color) at this pixel?.

CIS 41br Chapter 6 - Lighting and Shading

5.17.2017 | Nathan Becker
Lighting and shading in computer graphics

CIS 41. Computer Graphics Chapter 6 - Lighting and Shading. Overview. Shading is what gives the objects their three-dimensional appearance; Without.