Effie Submission HW2

[effieyanfei]

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[likangning93]

Hi Effie, some comments from grading:

I love your animation!

I like your writeup too, but please put it in README.md and rename the existing README.md with the original instructions to INSTRUCTIONS.md. This way, anyone visiting your project on github will see your writeup right away!

I got significantly smoother results for your shadows and normals by setting the EPSILON to 0.01 and setting mint to 0.01 and maxt to 10.0 for the call to "shadow.":

-    float s = shadow(p, LIGHT, 0.0, 1.0, 0.5);
+    float s = shadow(p, LIGHT, 0.01, 10.0, 0.5);

You may also want to normalize the LIGHT
direction that is going in there.

My laptop thanks you for using sphere tracing instead of a fixed stepsize :D