Solid Modeling with Polygonal Meshes (Hill, Chapter 6)

• Normal Vectors - Face vs Vertex
• Defining the Mesh
  • orientation (outside vs inside)
  • Vertex list
  • Face list
  • Normal list
• Finding the Normal Vectors
  • Newell's Method

Blending and Depth Buffer

Projections:

• orthographic
• perspective
  • glFrustum (left, right, bottom, top, zNear, zFar)
  • gluPerspective(fovy, aspect, zNear, zFar)

Returning to the Camera

• Using gluLookAt to position and orient the camera
• Generic position for the camera
• The UVN coordinate system:
  • N = (eye - look)
  • U = <up> X N
  • V = N X U
  • Normalize each!

The Pipeline

• The viewing matrix in the MODELVIEW mode
  • converts world coordinates into camera coordinates by transforming the UVN coord system into
        the generic position for the camera
• The pipeline postmultiplies the current matrix by this matrix.

Returning to the Camera yet again (OpenGL Programming Guide, Chapter 3)

• flythrough (pilot view)
• sperical viewing
• moving the camera intuitively

REFERENCE(S):

Computer Graphics Using OpenGL (Hill):
      Chapter 6,7;
OpenGL Programming Guide - Chapters 3 and 5;
GLUT Programming Interface:

/classes/cs3014/files/Viewing/demo1.cpp
/classes/cs3014/files/Viewing/demo2.cpp
/classes/cs3014/files/Viewing/demo3.cpp
/classes/cs3014/files/Viewing/demo4.cpp
/classes/cs3014/files/Viewing/demo5.cpp
/classes/cs3014/files/Viewing/demo5b.cpp
/classes/cs3014/files/Viewing/demo6.cpp
/classes/cs3014/files/Viewing/demo8.cpp

/classes/cs3014/files/Blending/blend0.cpp
/classes/cs3014/files/Blending/blend1.cpp
/classes/cs3014/files/Blending/blend2.cpp
/classes/cs3014/files/Blending/blend3.cpp