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Homework 5: Quadric Error Metric Simplification

Task 1. Use the provided code template to implement the QSim algorithm (see halfedge.ts and primitive.ts).

Here are example outputs:

ReductionRatio r=0.0 r=0.50 t=0.90 t=0.95
Bunny
Rocket ARM
  • Left: Simplified using Qsim (QEM)
  • Right: Simplified using SimplifyModifier (from three.js)

Task 2. Answer questions regarding the implementation.

Implementation complexity: Which code snippet (report in line numbers) in the geometry/primitive.ts or geometry/halfedge.ts is the most time consuming for you to implement? Explain your coding experience and encountered challenges briefly.

TODO: your answer goes here

Debugging complexity: Describe an impressive bug that you wrote while implementing this project, and briefly explain how you fixed it.

TODO: your answer goes here

Runtime performance: Which part of your code could be a bottleneck and how the computation performance could be improved?

TODO: your answer goes here

Submission Instruction

In short: Send a pull request.

To submit a solution, one should create a folder named by the corresponding GitHub username in the homeworks folder and that folder will serve for all future submissions.

For example, in the homeworks folder, there is an existing folder changkun that demonstrates how to organize submissions:

gp
β”œβ”€β”€ README.md               <-- Top level README
β”œβ”€β”€ 5-remesh                <-- Project skeleton
└── homeworks
    └── changkun            <-- GitHub username
        └── 3-smooth        <-- Actual submission