/graphics-hw3

Primary LanguageC++

Andrew Hurle

CS 4731 - Computer Graphics

Homework 3

Renders five Lindenmayer systems defined in the lsystems directory. Can cycle though the five systems with 'a', 'b', 'c', 'd', 'e', and show all of them at random positions with 'f'. In "forest" mode, the cow and car meshes are also drawn.

The program is linked against whatever files are present on the machine. The Zoo Lab machines contain the needed library files, so they're not included here.

Running

To compile and run on Linux:

  1. make && ./hw3

To compile and run on Windows (Zoo Lab machines, tested on FLA21-02):

  1. Open "Visual Studio Command Prompt (2010)" from the start menu
  2. cd C:\wherever\these\files\are
  3. nmake /f Win-Makefile
  4. hw3.exe

Notes

LSystemReader is responsible for pulling the system data out of files and putting it into an LSystem instance. This instance will iterate the start string based on the grammar it is given. The LSystem provides a Turtle instance. This Turtle can be given all of the commands in the turtle string, and will modify a given transform matrix stack. LSystemRenderer will actually give the commands to the turtle and draw its progress to the screen as a PolyCylinder. hw3.cpp hooks everything up with the standard GLUT callbacks. The Scene object from Scene.hpp is capable of displaying the LSystems and arbitrary meshes simultaneously.

The camera position is in the +x/+y/+z octant, looking to -x/-y/-z, so x and z axes both point out of the screen.

None of the trees are scaled in any way, so some are rather small compared to others.

I didn't get around to drawing the ground plane.