I recently moved to a new machine and moved my old blender installation with me. I just use it to create simple models for 3d-printing, so my knowledge is good for that and little else.
On the new computer, I encountered an interesting problem: after applying a boolean difference modifier to the cone, the program created many new polygons in the mesh:
On the old machine, Blender behaved and the same operation yielded ONE cleanly cut new surface which I can work with.
I suppose I somehow disabled this mad cutting behavior on my old machine and I look forward to doing so on my new one, but I am lost as to how to do that. Can anybody give me a hand on that? I assume it is some simple hotkey, which I just dont know.
Also, I apologize - the topic was probably brought up a million times before, I rummaged through the forum, but since I cannot name the phenomenom, it is hard to find a lead.
Not sure but this could be a graphics card / graphics driver issue where the hidden N-gon edges are being displayed when they shouldn’t be. Make sure you’re running the latest graphics driver.
Highly interesting comment, I upgraded the driver and rechecked whether I was just seeing things that were not really there.
Unfortunately, turns out the things ARE there and they are real polygons:
Gives the whole problem a new direction though. I was convinced that I was just missing a hotkey to make Blender behave again. Think it could be a hardware issue?
No Sir. A freshly created cone starts out without excessive segmentation. The additional polygons appear only after I applied the Boolean. Even those on the bottom. Which is interesting, since that surface was not even remotely touched by the Boolean.
Have you tried doing a clean install of Blender? i.e. uninstall then go and delete folders etc not removed when you uninstall. Something is definitely not right.
I tried that today, reinstalling 2.65. No progress.
However, at that point (I totally agree with you, something is not right), I got around to install 2.78 - 2.79 was also tried but would not start - and voila, now I can Boolean meshes unpunished. Yey!
I hesitated to do that, new version and all that and I thought I was just missing a hotkey. But since you confirmed that there was something amiss, it seemed to be the right step.