Project 3: Jackie Li

[sagescherrytree]

GPU Path Tracer

Core Features Completed

• Shading kernel with BSDF evaluation (diffuse, specular).
• Stream-compacted path termination using thrust library.
• Sorting by material type.
• Stochastic sampled antialiasing.

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Extended Features Completed

Visual Improvements

• BRDF refraction.
• Physically based depth of field.
• Microfacet materials (Cook Torrance model).
• Texture loading and bump maps.

Mesh Improvements

• Mesh loading (obj).

Performance Improvements

• BVH acceleration.

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Other Features and Details

• Libraries added:
  • stb_image.h
  • stb_image_write.h
  • json.hpp
  • tiny_obj.h
• Scene file changes:
  • cornell.json
  • cornell_glass_test.json
  • cornell_microfacet_test.json
  • cornell_multiple_glass.json
  • cornell_obj_anaxagoras_glass.json
  • cornell_obj_bnnuy.json
  • cornell_obj_castorice_glass.json
  • cornell_obj_phainon_glass.json
  • cornell_obj_phatphuck.json
  • cornell_obj_phatphuck_alt.json
  • cornell_obj_phatphuck_microfacet.json
  • cornell_obj_phatphuck_texture_test.json
  • cornell_obj_specular.json
  • cornell_obj_test.json
  • cornell_reflective_test.json
  • cornell_transmissive_test.json

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🧩 README Completion Checklist

• Cover image in README (not using Cornell Box)
• Descriptions, screenshots, debug images, side-by-side comparisons of features implemented
• Analysis section
• Scenes and meshes included or linked
• Third-party library changes or compilation instructions documented
• Bloopers (optional)

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🕒 Late Days Used

• 2 late days

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🗒️ Project Feedback

I wish this project could last longer. I want to implement more features.