Handle zero-surface area polygons and points

[maxammann]

🤔 Expected Behavior

Not sure yet for zero surface areas.

For points we want to upload static vertices or use a custom shader.

😯 Current Behavior

Right now we skip layers with zero verticies. This might not be the ideal behavor. Think about it!

💁 Possible Solution

🔦 Context

💻 Code Sample

🌍 Your Environment

• Desktop

  • Operating System: Windows/Linux/macOS
  • Display Server: Xorg/Wayland/-

• Web

  • Browser: Firefox/Chrome/Safari
  • Version: 100

• Mobile

  • Operating System: Android/iOS
  • Version: 11