lab02 debugging: Akiko Zhu

[AkikozZM]

Shadertoy
I fixed the following bugs in this lab02 project

• Syntax error:
  • vec uv should be vec2 uv
• Argument input error:
  • should put uv2 in the raycast function instead of uv, so that the camera can correctly see the entire scene
• iResolution error:
  • should change iResolution.x / iResolution.x to iResolution.x / iResolution.y so that the camera will not be distorted
• Ray march limit error:
  • should increase the maximum distance(i < 256 instead of i < 64) that ray can march the scene object so that the camera can see the further floor
• Reflection error:
  • this one is very tricky, should plug dir into the reflect function instead of eye