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Lab 06: Yilin Liu #14

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# lab06-debugging

[Shadertoy]( https://www.shadertoy.com/view/mdj3Rt)

Name: Yilin Liu

# Bugs

- Bug 1: changed "vec" to "vec2" in mainImage(); -- Found by compiling.

- Bug 2: changed "uv" to "uv2" in mainImage() -- found uv2 was derived from uv but unused.

- Bug 3: changed "eye" to "dir" in sdf3D() -- the reflection was clearly not corrected so I looked into the reflect function. The first input should be the incident light, aka incoming light, which should take "dir" as the input.

# Setup

Create a [Shadertoy account](https://www.shadertoy.com/). Either fork this shadertoy, or create a new shadertoy and copy the code from the [Debugging Puzzle](https://www.shadertoy.com/view/flGfRc).
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