If you select an object and go to the object data panel, there is a check box named double sided. This is supposed to be checked automatically (I think) but for me, it isn’t and I have to check it every time I add a new mesh. Anyone know how I can enable it by default?
If I forget and start extruding etc, the normals are always the wrong way around, and I have to either flip them, or check the box (it’s real annoying…)
I do remember a long time ago in like blender 2.56 or something installing a plugin which disabled two sided normals to help make a file I had run smoother, but that isn’t installed anymore, and obv im running the latest version of blender…
Double-sided being activated by default caused a massive viewport performance drop on nVidia cards. That was the reason for the addon you remember and for subsequently changing the default behaviour to double-sided = off (a few versions ago).
Personally I much prefer the new default, as it makes spotting wrongly facing normals quite easy: They are instantly recognizable because of their darker shading.
BTW, double-sided only refers to shading. It does not change the fact that each face has only one normal pointing in one direction only.
Yeah I understand the normals only actually being on one side, but the shading thing is a pain in the ass. If I add a plane and extrude it downwards, the mesh is black and I have to recalculate before I can continue modelling. Just slows general workflow down.
But if it’s off by default these days, then i’ll just have to get used to it I guess