Table of Contents
Lighting and Shading Techniques for Interactive Applications
PPT Slide
Shadows
Interactive Lighting Models
Interactive Shadow Simplications
Interactive Shadow Rendering Techniques
Planar Projected Shadows
Projected Planar Shadow Example
Projected Planar Shadows
Projected Planar Shadow Matrix
Projected Planar Shadow Issues
Planar Projected Shadow Artifacts
Quick Tutorial on Stencil Testing
Stencil Testing in the Fragment Pipeline
Stencil Testing
Stencil Operations
The Shadow Volume Concept
Visualizing Shadow Volumes
Shadow Volume Result
Shadow Volume Algorithm
2D Cutaway of a Shadow Volume
Tagging Pixels as Shadowed or Unshadowed
Stencil Inverting of Shadow Volume
Visualizing Stenciled Shadow Volume Tagging
Computing Shadow Volumes
For Shadow Volumes With Intersecting Polygons
Why Increment/Decrement Works
Shadow Volume Issues
Reconstructing Shadow Volume From a Depth Buffer
Multiple Lights and Shadow Volumes
Shadow Volumes from Area Light Sources
Soft Shadow Example
Combined Shadow Approaches
Pre-computed Shadow Textures
Rendering Soft Shadow Textures
Rendered Soft Shadow Texture Example
Hardware Shadow Mapping
Hardware Shadow Mapping Algorithm
Hardware Shadow Mapping Issues
Transparency
Some Blending is Commutative
Transparency Ordering
Sorting for Transparency
Sorting Optimizations
Screen Door Transparency Example
Screen Door Transparency Implementation
Screen Door Transparency With Alpha Textures
Multiple Levels of Screen Door Transparency
Sub-pixel Screen Door Transparency
Atmospheric Effects
Fog Example
OpenGL’s Built-in Fog Model
Computing the Fog Factor
Standard OpenGL Fog Models
OpenGL Fog
Planar Eye-distance Fog Artifacts
Texture Fog Methods
OpenGL Fog Coordinate Extension
A More Complex Fog Model
Height-based Fog Scenario
Height-based Optical Depth
Height-based Fog Examples
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