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Lab 6 - Vivian Tung #18

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Lab 6 - Vivian Tung #18

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# lab06-debugging

https://www.shadertoy.com/view/csXXzn

Bug 1: compiler error (line 95) - fixed by adding "2" to "vec"

Bug 2: spheres are squished down (line 11) - fixed by computing H by dividing by iResolution.y instead of iResolution.x

Bug 3: sphere positions are too close to the camera and off-center (line 100) - fixed by raycasting using uv2 instead of uv

Bug 4: no specular reflection (line 75) - fixed by reflecting dir instead of eye

Bug 5: ground does not extend far enough (line 18) - fixed by increasing the number of iterations we march from 64 to 200

# 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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