Ensayo
Páginas: 2 (439 palabras)
Publicado: 12 de octubre de 2010
16/02/2010
Three Dimensional Viewing
General three-dimensional transformation pipeline,
1
16/02/2010
Photographing a scene involves selection of the camera position and orientation.A righthanded viewing-coordinate system
2
16/02/2010
Orientation of the view plane and viewplane normal vector N
3
16/02/2010
The View-Up Vector
• This vector is used toestablish the positive direction for the yview axis
uvn viewing-coordinate reference frame
4
16/02/2010
Generating Three-Dimensional Viewing Effects
Viewing an object from differentdirections using a fixed reference point.
5
16/02/2010
TRANSFORMATION FROM WORLD TO VIEWING COORDINATES
6
16/02/2010
Parallel projection
Perspective projection
7
16/02/2010Orthogonal projections
Axonometric and Isometric Orthogonal Projections
8
16/02/2010
Clipping Window
Orthogonal-Projection View Volume
9
16/02/2010
Normalization Transformationfor an Orthogonal Projection
10
16/02/2010
OBLIQUE PARALLEL PROJECTIONS
Oblique parallel projection
11
16/02/2010
Cavalier
Cabinet
12
16/02/2010
Projection vectorVp
13
16/02/2010
Oblique Parallel-Projection Transformation Matrix
14
16/02/2010
Normalization Transformation for an Oblique Parallel Projection
Perspective projection
15 16/02/2010
Perspective-Projection Transformation Coordinates
Perspective-Projection Equations: Special Cases
16
16/02/2010
Projection reference point is between the object and the viewplane
Moving the projection reference point
17
16/02/2010
Principal vanishing points for perspectiveprojection views of a cube
Perspective-Projection View Volume
18
16/02/2010Perspective-Projection Transformation Matrix
Symmetric Perspective-Projection Frustum
19
16/02/2010
Field-of-view angle
20
16/02/2010
Oblique Perspective-Projection Frustum...
Three Dimensional Viewing
General three-dimensional transformation pipeline,
1
16/02/2010
Photographing a scene involves selection of the camera position and orientation.A righthanded viewing-coordinate system
2
16/02/2010
Orientation of the view plane and viewplane normal vector N
3
16/02/2010
The View-Up Vector
• This vector is used toestablish the positive direction for the yview axis
uvn viewing-coordinate reference frame
4
16/02/2010
Generating Three-Dimensional Viewing Effects
Viewing an object from differentdirections using a fixed reference point.
5
16/02/2010
TRANSFORMATION FROM WORLD TO VIEWING COORDINATES
6
16/02/2010
Parallel projection
Perspective projection
7
16/02/2010Orthogonal projections
Axonometric and Isometric Orthogonal Projections
8
16/02/2010
Clipping Window
Orthogonal-Projection View Volume
9
16/02/2010
Normalization Transformationfor an Orthogonal Projection
10
16/02/2010
OBLIQUE PARALLEL PROJECTIONS
Oblique parallel projection
11
16/02/2010
Cavalier
Cabinet
12
16/02/2010
Projection vectorVp
13
16/02/2010
Oblique Parallel-Projection Transformation Matrix
14
16/02/2010
Normalization Transformation for an Oblique Parallel Projection
Perspective projection
15 16/02/2010
Perspective-Projection Transformation Coordinates
Perspective-Projection Equations: Special Cases
16
16/02/2010
Projection reference point is between the object and the viewplane
Moving the projection reference point
17
16/02/2010
Principal vanishing points for perspectiveprojection views of a cube
Perspective-Projection View Volume
18
16/02/2010Perspective-Projection Transformation Matrix
Symmetric Perspective-Projection Frustum
19
16/02/2010
Field-of-view angle
20
16/02/2010
Oblique Perspective-Projection Frustum...
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