Read Me

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Frustum Culling
Rodrigo Setti - rodrigosetti@gmail.com
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This package comes with two programs:

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frustum:
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The aim of frustum is to demonstrate the Frustum Culling technique used in most
3D rendering software and games where several object exists in a scene but few
of them have to be rendered in the viewport. To do so this technique uses
some calculation to find out which objects can be seen by the camera and which
can not, thus saving processing time.

To achieve a interesting demonstration the program simulates a virtual camera,
it is a third person camera in which you can observe objects being rendered inside
the viewport normally and wireframe outside. User can move its real camera and
the virtual camera using the commands:

W:	Move the user's camera forward
S:	Move the user's camera backward
Arrow keys:		Turn user's camera

E:	Move the virtual camera forward
D:	Move the virtual camera backward
JKLI:		Turn virtual camera

1:	Move the user's camera into virtual camera position
2:	Move the virtual camera into user's camera position

The program accepts one of several height maps(located in hmaps dir) to generate
the scene. The scene uses the map and put several procedure generated objects like
trees, rocks, grass and water.

Usage: frustum heightmap.raw

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woods
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A non ending woods with several procedure generated objects like threes, rocks,
grass and clouds. The scene never ends because when user reaches a block end
another block is put in front of him to continue path.
Use arrow keys to move.