About the mirror modifier

[AzuDev]

Hello!! Ok, just to understand better, we added a mirror modifier because the subdivision it’s too prone to crash the Blender??

Thanks

[BH67]

Well, not exactly. Mirroring and Subdivision Surface do two completely different things, and the Mirror isn’t being added because of Subdivision Surface. It’s pretty stable actually; the reason for being careful with Subdivision Surface is that each additional Level multiplies your facecount by 4 and smoothes the resulting topology. Overdo that, and your CPU will cry like a wimpy kid in a haunted house.

Generally speaking, you shouldn’t need to go higher than 3 Levels for most things, especially in the Viewport vs the Render setting (and if you’re Shading Smooth). At 3 and below, you should be fine if you have a Blender-ready computer, depending on how extensive your base topology is.

If you really need to dip into 4 and beyond for whatever reason, there’s not much stopping you (the maximum is at least 6), but then you should turn Statistics on and make sure you don’t end up with a veritable sculpt in your Layout workspace - that’s when you should consider keeping the Viewport Levels at 3 and only increasing the Render setting. And, making an incremental save in case your computer cries Uncle =)

[AzuDev]

Thank you very much!! Now I have a better understanding.