ripping / missing faces when play

Game Engine Game Engine Support and Discussion
1

So here’s the story from start to where I am now.

I use blender 2.75a because it runs better on my laptop (i’d upgrade in a heartbeat if you guys think that would solve this.

I’m remaking a model I made in early 2015, back when I thought the decimate modifier was ok for game characters. It had so many ngons that I just decided to remesh the high poly. I used the mirror mod to cut worktime and any unnecessary struggle. When it came to baking is where I encountered my first issue. Though I applied the modifier and unwrapped things it would only bake parts of the normals (ex: the head, an arm and the body) I eventually overcame this by remove UV map and then unwrapping it again.
Things went fine for a while but when I pressed play …part of it just…vanishes…it looks like it tears.
I made sure all the faces were facing the right way, no overlapping and backface being turned on only makes things worse

help.png1172×544 159 KB

2

looks like the normals are backward

try ctl+F -> flip normals

ok if not normals -> ensure alpha is set to opaque or alpha anti-aliasing

if it’s not opacity I am kinda stumped
try removing the skull mesh and parenting to the head bone (so it’s not 1 object with faces behind faces)

3

Or even better: ctrl+n to make normals consistent.

4

flipped normals. Creature seems to lose it’s entire front half now ;-;

help 2.png606×540 51.5 KB

5

Ctrl+N in edit mode still seems to get some ripping. Upon close inspection it looks like I’m just getting blackmarks on it’s chin etc o.o

6

tried first option. It made the creature look backwards when I pressed play. It’s on opaque.
you mean removing the head? or adding rigging?

7

I think I solved it but it’s aggravating when I fix something without understanding.
I duplicated the item, made it single user and re-added my textures …

8

looks like doubled geometry. try adding a triangulate modifier. some modifiers cause materials to bug out, solidify for one.

make sure the objects scale is 1,1,1. ctrl-a to apply transforms.

9

I think it actually turned out to be a bug on blender’s behalf. (sorry for not posting to this thread for so long.
But what I ended up doing was duplicating the mesh, made it a single user and all the clipping, cutting weird nonsense stopped!