What is the difference between extra rendering thickness and extra simulation thickness

Question: What is the difference between extra rendering thickness and extra simulation thickness

Answer:

The thickness displayed and calculated for the pattern piece in the software depends on the fabric used and its own parameters:

The actual rendering thickness of the pattern piece (the thickness as seen visually) = fabric thickness + additional rendering thickness.

Rendering thickness does not affect the simulation result or the pattern piece's mesh arrangement due to the simulation. It only controls the visual effect of the front and back mesh spacing.

The actual simulation thickness of the pattern piece (the thickness used for calculations, affecting the collision relationship between meshes in the front and back; a thicker pattern piece will be farther from adjacent front and back layers and the body) = fabric thickness + additional simulation thickness.

Simulation thickness does not affect the visual effect or perceived thickness of the pattern piece; it only impacts the simulation results and the pattern piece's thickness during collisions, which in turn affects the pattern piece's shape.