纹理地图：多片参数化

Texture Atlas，Multi‐charts Parameterization

[43:48]
单片参数化扭曲大，因此切成小片，分别参数化、再拼起来。
拼起来时尽量少的面积浪费[44:54]，即Minimizing Packing Efficiency (PE)

Atlas Generation 集装箱问题

• Low Distortion
  • [Golla et al. 2018; Liu et al. 2018; Shtengel et al. 2017; Zhu et al. 2018]
• Consistent orientation
  • [Floater 2003; Tutte 1963; Claici et al. 2017; Hormann and Greiner 2000; Rabinovich et al. 2017; Schüller et al. 2013]
• Bijection
  • [Jiang et al. 2017; Smith and Schaefer 2015]
• Low boundary length
  • [Li et al. 2018; Poranne et al. 2017; Sorkine et al. 2002]
• Packing efficiency
  • Box cutter [Limper et al. 2018]
  • Bounded Packing Efficiency [Liu et al. 2019]

Atlas Refinement: Higher PE

Box Cutter [Limper et al. 2018]

• Atlas refinement
  • Remove overlaps
  • Improve packing efficiency

• No additional distortion
• Bounded boundary length elongation

Boater:割开与填补

Bounded Packing Efficiency

[Liu et al. Atlas Refinement with Bounded Packing Efficiency. Siggraph 2019.]

把网格参数化为box align.装箱之后再对边界优化

本文出自CaterpillarStudyGroup，转载请注明出处。 https://caterpillarstudygroup.github.io/GAMES102_mdbook/