Simplifier

3D mesh simplification application

Implementation of Surface Simplification Using Quadric Error Metrics, SIGGRAPH 97, written in C++, inspired by fogleman's simplify.

Iteratively simplifying a complex model by 50%

Faces after each iteration

37986	18993	9496
4747	2373	1186

Output for the simplification above:

D:\Dev\git\Simplifier>D:/Dev/git/Simplifier/build/release/simplifier mode=iterative iterations=5  in=d:\Downloads\39-stl\stl\Dragon.stl
Loading "d:\\Downloads\\39-stl\\stl\\Dragon.stl"
Input mesh contains 37986 faces
Simplifying...
Iteration 1 | 18993 faces | duration: 341 ms
Iteration 2 | 9496 faces | duration: 149 ms
Iteration 3 | 4747 faces | duration: 63 ms
Iteration 4 | 2373 faces | duration: 31 ms
Iteration 5 | 1186 faces | duration: 13 ms

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Install

1. Clone the repository:

   git clone <repository-url>
   cd Simplifier

2. Create a build directory:

   mkdir build
   cd build

3. Run CMake to configure the project:

   cmake ..

4. Build the project:

   cmake --build .

Usage

example

• Simplifier.exe factor=0.1 in=input.stl out=output.stl
• Simplifier.exe in=D:\Downloads\Dragon.stl mode=iterative iterations=5

params

• in: input file path
• out: output file path [optional, default=input_simplified.stl]
• factor: 0.01-0.99 [optional, default=0.5]
• mode: simple|iterative [optional, default=simple]
• iterations: number of iterations [optional, default=1] (only for iterative mode)

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