My code supports multiple light sources. I also came up with a 
model for a pyramid. The bottom of the pyramid is left open for 
illustrating culling. Also each applet has its own control 
window which has buttons for making the models taller and 
shorter. It also has an animation button. Animation button
can be used to see how backface culling works on the pyramid.


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For some reason, my near, and far clipping is not working. I am
sure that the math is right. I suspect there is a small bug
that is causing all the trouble, but I couldn't find it. 



<applet code="Pipeline"
	codebase="http://www.ai.mit.edu/~mtsezgin/6.837/PS04/classes/" 
	width=400
	height=400
	datafile="cow.obj"
	repetitions="10">
 </applet> 

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Here is the <a href="src"> source code. </a>
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Here is the page for the <a href="index2.html"> cube demo. </a>
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Here is the <a href="src"> source code. </a>
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<applet code="Pipeline"
	codebase="http://www.ai.mit.edu/~mtsezgin/6.837/PS04/classes/" 
	width=400
	height=400
	datafile="pyramid.obj"
	repetitions="10">
 </applet> 
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The bottom of the pyramid is left open for 
illustrating culling. Also each applet has its own control 
window which has buttons for making the models taller and 
shorter. It also has an animation button. Animation button
can be used to see how backface culling works on the pyramid.
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