Name: Ryan Villasin
CSE 167 Fall 2003
Prof: Sam Buss
Final Project



DESCRIPTION

	My Project exhibits an outdoor snow scene.  It starts off with a lone tree
in a "snowy scene".  It can be animated so it seems like it is snowing.  Throughout
the animation, a simple snowman slowly begins to form.  Aside from this, the scene
can be turned into night and a light (source) on the top of the tree can be placed
while different sets of colors of balls (ornaments) also appear; giving the tree a 
Christmas tree effect.




IMPLEMENTATION

	For the base plane and wall background, texture mapping is applied to give
the scene an outdoor look.  The tree is drawn in separate parts: sets of cones with
texture mapping represents the leaves and a simple cylinder is created to represent
the stem of the tree. Two different set of light source is created: one is for the
general, morning scene while the other is for the lighted, night scene.  The ornaments
are placed strategicly around the cones as well giving them alternate colors.
The snowman is drawn in separate parts as well, using spheres for the body, eyes, 
and buttons, and a cone for the nose.  And lastly, the animation is implemented using
small spheres drawn across the area. 
	However, I was not satisfied in my attempt to make the snow fall non-uniform
and found it hard to implement.  In some angles, the snow looks fine; but in others,
the uniformity is very visible.  I had also planned to include Christmas lights around
the tree but found it very difficult to implement, which forced me to stick with the
ornament balls instead. 




EXECUTION

	Initially, the program starts with a tree in a "snowy scene". Different keys
are used to implement different animations.  The keys are as follows:


 *    	  Press "R" key to make step size bigger (if moving too slowly)
 *    	  Press "r" key to make step size smaller (if moving too fast).
 *
 *    	  Press "w" key to toggle wireframe mode on and off
 *    
 *     	  Press "c" to toggle culling backfaces.
 *
 *	  Press "s" to toggle shading mode.
 *
 *	  Press "q", "a" to toggle the light source "on" or "off"
 *
 *	  Press "1", "2", "3", and "4" to toggle the different color balls
 *
 *	  Press "z" to toggle the snow animation
 *
 *	  Press "X" to decrease the amount of snow falling
 *	  Press "x" to increase the amount of snow falling
 *
 *	  Press "d" to reset snowman animation
 *  
 *	  Press ESCAPE to exit.