Improve documentation

[wernight]

First I'd suggest to add to the README how to install (being a noob in Blender):

1. Download repo as ZIP
2. Blender > Preferences > Add-ons > Install… > Select ZIP and enable

Second I'd suggest to add in the README an explanation for both options:

• Split into layers: That one I got relatively quickly; creates one "entity" per layer instead of one entity for all layers
• Subdivide: Sorry I don't quite understand why/when this is useful

Third I'd link to the WiKi which is really useful to get something to start rendering. I don't yet understand why the initial imported thing does not render or what it is exactly.

To give some background, I'd like to preview transparent filament, so I need to get the infill to render. However using the Convert To and setting Depth generates interlocking meshes which do no seem to render properly when translucent. I guess the meshes must be merged a bit like they get fused in real life. For that I tried the Weld modifier with a value of roughly half of the curve's Depth. It seem to do half of the job but only half and it's extremely slow. If you know a better way (or if I find one) it'd be very useful to document it.

[wernight]

The closest I could find so far which isn't too bad actually:

1. Slice without support or brim and prefer a layer height of 0.4 (for standard prints).
2. Create a metaball (Shift + A > Metaballs > Ellipse) with:
   • Radius: 0.015
   • Size Z: 0.5
   • Resolution Viewport: 0.01
   • Render Resolution: 0.005
   • Influence Threshold: 0.001
3. Import with Split into layers deselected and Subdivide selected.
4. Select the imported mesh, Particle system:
   • Emission > Number: 1000000 (or more)
   • Emission > Frame End: 1
   • Emission > Random Order: Unchecked
   • Emission > Source > Emit From: Verts
   • Physics > Physics Type: None
   • Render > Render As: Object
   • Render > Scale: 1
   • Render > Object > Instance Object: Mball

As for a material that makes it looks like transparent (using Cycles and a HDRi environment set up with a shadow/light catcher):

• Principal BSDF:
  • Roughness: 0
  • Transmission: 1
  • Transmission Roughness: 0.2
  • Alpha: 0.4

Result:

[wernight]

I cannot easily edit the Wiki. Would you mind adding a section on how to render a preview of a transparent model based on my comment above?

[wernight]

One more reason to do this (i.e. single create a solid mesh of the boundary of the gcode) is for forces analysis. This way you can simulate infill and by using a thin layer metaball even simulate bad layer adhesion.