A1260045007RlctQ

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3D Game Engine Design
Chapter 13. Special Effects Computer Graphics ?
? 2001.12.4
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Index

1. Lens Flare
2. Environment Mapping
3. Bump Mapping
4. Volumetric Fogging
5. Projected Lights
6. Projected Shadows
7. Particle Systems
8. Morphing

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Lens Flare (1)
Definition - a phenomenon that is caused by
the lens of the eye or camera when directed
at bright light.
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Lens Flare (2)
Halo - the lens material refracts light of
different Wavelengths by different amounts
Ciliary corona - density fluctuations in the lens
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Environment Mapping (1)
Definition - a method that allows surfaces to
be drawn with a reflection of the environment
in which the surface lives
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Environment Mapping (2)
E
V
Texture map
N
P
R
(u,v)
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Bump Mapping (1)
Definition - a method for changing the visual
appearance of a surface by using a different
set of normals for lighting than the surface
normals
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Bump Mapping (2)
Bump mapping - shift and subtract Image
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Volumetric Fogging
Purpose - help an application generate dense
fog that occurs close to the eye point
ltfoggt
ltVolumetric Foggt
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Projected Lights
A classic example - to set up a projected
light that casts light through a stained
glass window
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Projected Shadows
Definition - A shadow that falls from an
object and projects on a surface
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Particle Systems(1)
Definition - a set of separate small objects
that are set into motion using some algorithm
ltSmokegt
ltFireworksgt
ltSnowgt
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Morphing(1)
Definition - the process of deforming an
object
Morphing
Destination Image
Source Image