the knife dules after mirrors apply. #109064

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unknown-1 · 2023-06-16T23:07:01+02:00

unknown-1 commented

2023-06-16 23:07:01 +02:00

So, this error is annoying although tricky to spot.

what's going on is something my instincts tell me this is a bug because this seems like it shouldn't happen.

So after I apply the mirror the knife won't make more polygons.

to find this bug:

turn on the mirror modifier (it won't matter if you do work or not)
Apply the mirror modifier (keyboard shortcut or manual mouse click makes no difference).
take out knife tool and use it to create any shape (if lucky you will get a side cut and none more)

WARNING: this bug will not work on mesh that has no mirror applied.

WARNING: this bug will not work on mesh if mirror is active but not applied.

P.S. just in case more clarity is needed the fastest way to find this bug is:

open a completely untouched file.
add mirror modifier.
apply mirror.
change object mode to edit mode (assuming you did step one)
on the left of the screen scroll down to knife and click on it.
use it on the only mesh in the file (which is the mesh you applied mirror to)

I read your "help the developers" blurb thing under here so I want to take it a step further and give you my best guess on how to fix the problem and why the problem happens.

P.S.P.S.

this part is all educated guess work (as in knowing what to expect. I quite the free version of Z Brush and came to you guys because it was so junky (I knew right away there weren't enough tools)).

My guess of what's happening is there is something somewhere in your code that tells the mirror once applied to overlap both sides over each other. this in turn confuses the knife because it dose not know which layer to cut through. and instead of cutting though both layers it just wouldn't. a simple fix for this is to code the knife to cut through everything (although it could slice the whole mesh, meaning I just want the front cut and not the back, but it dose both the back and the front).

my other suggestion is you make so when the mirror modifier is applied you make is so the overlapping layers of sides become one.

P.S.P.S.P.S.

if my previous P.S. or P.S.P.S. didn't help I'm sorry I tried to make a leap and give you more help than you normally get because I felt like I could give it.

So, this error is annoying although tricky to spot. what's going on is something my instincts tell me this is a bug because this seems like it shouldn't happen. So after I apply the mirror the knife won't make more polygons. to find this bug: 1. turn on the mirror modifier (it won't matter if you do work or not) 2. Apply the mirror modifier (keyboard shortcut or manual mouse click makes no difference). 3. take out knife tool and use it to create any shape (if lucky you will get a side cut and none more) WARNING: this bug will not work on mesh that has no mirror applied. WARNING: this bug will not work on mesh if mirror is active but not applied. P.S. just in case more clarity is needed the fastest way to find this bug is: 1. open a completely untouched file. 2. add mirror modifier. 3. apply mirror. 4. change object mode to edit mode (assuming you did step one) 5. on the left of the screen scroll down to knife and click on it. 6. use it on the only mesh in the file (which is the mesh you applied mirror to) I read your "help the developers" blurb thing under here so I want to take it a step further and give you my best guess on how to fix the problem and why the problem happens. P.S.P.S. this part is all educated guess work (as in knowing what to expect. I quite the free version of Z Brush and came to you guys because it was so junky (I knew right away there weren't enough tools)). My guess of what's happening is there is something somewhere in your code that tells the mirror once applied to overlap both sides over each other. this in turn confuses the knife because it dose not know which layer to cut through. and instead of cutting though both layers it just wouldn't. a simple fix for this is to code the knife to cut through everything (although it could slice the whole mesh, meaning I just want the front cut and not the back, but it dose both the back and the front). my other suggestion is you make so when the mirror modifier is applied you make is so the overlapping layers of sides become one. P.S.P.S.P.S. if my previous P.S. or P.S.P.S. didn't help I'm sorry I tried to make a leap and give you more help than you normally get because I felt like I could give it.

bug report.blend

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unknown-1 added the

labels 2023-06-16 23:07:02 +02:00

unknown-1 commented

2023-06-16 23:14:16 +02:00

I just now learned that this bug works best on the edges and faces at an odd angle. either that you guys are crazy fast. but none the less I triple checked my facts before summiting that report and I'm sorry for not checking a fourth time.

Iliya Katushenock commented

2023-06-16 23:41:07 +02:00

This report does not contain all the requested information, which is required for us to investigate the issue.

Please submit a new report and carefully follow the instructions. Be sure to provide system information, Blender version, the last Blender version which worked, and a .blend file with exact steps to reproduce the problem.

A guideline for making a good bug report can be found at https://wiki.blender.org/wiki/Process/Bug_Reports

This report does not contain all the requested information, which is required for us to investigate the issue. Please submit a new report and carefully follow the instructions. Be sure to provide system information, Blender version, the last Blender version which worked, and a .blend file with exact steps to reproduce the problem. A guideline for making a good bug report can be found at https://wiki.blender.org/wiki/Process/Bug_Reports

Iliya Katushenock closed this issue

2023-06-16 23:41:09 +02:00

Blender Bot added

and removed

labels 2023-06-16 23:41:10 +02:00

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