Chapter 6 6 Lighting Digital Lighting Fundamentals n
- Slides: 8
Chapter 6. 6 Lighting
Digital Lighting: Fundamentals n Lights define 3 -D form in a 2 D medium n n n Bring out surface qualities Accent Form Lighting creates focus n n Luminance is relative to RGB value range Light can draw viewers attention n n Pools of brighter light Spots of distinct colors 2
Digital Lighting: Fundamentals n Lights create the Mood of a scene n n n Cool, Warm or Hot color schemes Brightly lit vs. Dark shadowy lighting Soft vs. Hard shadows 3
Digital Light Models n n Point Light Spotlight Directional Light Area Light 4
Ambient vs. Reflected Light n Digital Ambient Light n n n Adds an RGB value to all surfaces Reduces overall contrast Reflected Light (digital: Radiosity) n n n Real-world ambient light Created by light bouncing off surfaces Surface color and reflectivity affect light 5
Shadows n n Spatially orient objects Dispersion of shadows affect mood n Soft shadows n n n Generally brighter More subtle compositional element Hard shadows n n Stronger contrast Interesting compositional potential 6
Light Effects n n Lenses flairs and light bloom Atmospheric Fog; volumes of light Glowing light sources Self-illuminated textures 7
Summary n Lighting is essential to composition n n Legibility of detail Determining emotional state Directing the players attention Digital Light models n n Different from real world light Light for good composition n Light doesn’t always come from a visible source 8
