Mesh quality parameters

Choose the mesh quality for the imported model and whether to create levels of detail (LODs).

Quality defines the mesh density, which determines visual quality.

Pixyz uses these algorithms:

  • If you import a CAD model (exact geometry), Pixyz runs tessellation.
  • If you import a tessellated model (mesh geometry), Pixyz runs decimation.
  • Pixyz runs other optimization algorithms.

Set Quality to the quality level for the imported model. Select a predefined preset or choose custom parameters for the max sagitta (sag), and the sag ratio for CAD models.

For CAD models, Pixyz multiplies the length of the diagonal of the bounding box by the sag ratio. If the output value is above the max sag, then the max sag is used as the tessellation value. Otherwise, if the output value is below the max sag, it is used as the tessellation value.

Quality preset CAD model mesh Model
Maximum Results in a very dense and precise mesh. Pixyz prioritizes quality over low density. Pixyz tessellates the model.
  • Maximum sag: 0.1mm
  • Sag ratio: 0.0002
Same as the relatively high quality preset in Pixyz Studio.		 Entirely preserves the imported model.
Pixyz doesn't run optimization.
High This parameter is a modification of the Very High preset. Pixyz delivers a superior quality mesh. This preset provides high-quality results for small objects. Pixyz runs tessellation.
  • Maximum sag: 0.2mm
  • Sag ratio: 0.0003
Same as the Medium preset in Pixyz Studio.		 Pixyz slightly optimizes the imported mesh through subtle and limited decimation, preserving Smoothing (through surfacic and normal controls) and UVs.
  • Surfacic tolerance: 0.5mm
  • lineic tolerance: 0.1mm
  • Normal tolerance: 1°
Same as the Low preset in Pixyz Studio.
Low Results in a low-density mesh. Select this option to process large objects while limiting the polygon count. Pixyz runs tessellation.
  • Maximum sag: 1mm
  • Sag ratio: 0.003
 Pixyz slightly optimizes the imported mesh through controlled and efficient decimation. The resulting mesh might show smoothing and topological irregularities.
  • Surfacic tolerance: 3mm
  • Normal tolerance: 15°
Same as the Strong preset in Pixyz Studio.
Medium Results in a balanced mesh between quality and the polygon count. Pixyz runs tessellation.
  • Maximum sag: 0.3mm
  • Sag ratio: 0.001
Same as the Low preset in Pixyz Studio.		 Pixyz optimizes the imported mesh through controlled and efficient decimation, preserving smoothing and UVs. The resulting mesh might show smoothing irregularities.
  • Surfacic tolerance: 1mm
  • Normal tolerance: 8°
Same as the Medium preset in Pixyz Studio.
Poor Results in a very low-density mesh. Select this option to process large objects while strongly limiting the polygon count. Pixyz runs tessellation.
  • Maximum sag: 3mm
  • Sag ratio: 0.01
 Pixyz substantially optimizes the imported mesh through strong decimation. The resulting mesh shows smoothing and topological irregularities, which may be suitable for LODs.
  • Surfacic tolerance: 10mm
  • Normal tolerance: 20°
Custom Choose the max sag and the sag ratio. From the Edit menu, choose Preferences > Pixyz and select a value. Not applicable.
This option is available only for tessellation of CAD models. If required, using the Toolbox to customize the decimation level after you have imported a model at maximum quality.

Additional resources