conversion of text objects to mesh generate improper mesh for letter T (even with default text font) #52171

New Issue

Marco Ardito · 2017-07-24T12:04:16+02:00

Marco Ardito commented

2017-07-24 12:04:16 +02:00

System Information
Operating system and graphics card
Windows 7sp1x64
renderer: 'Intel(R) Q45/Q43 Express Chipset'
vendor: 'Intel'
version: '2.1.0 - Build 8.15.10.2869'

Blender Version
2.79 rc1, ie: 2.78 (sub 5), branch: master, commit date: 2017-07-13 10:50, hash: 248bba81e7
and also blender-2.78.0-git.9e929c9-windows64
...and back to 2.49b !

Short description of error
The conversion of the "T" or "t" (upper case or lowercase) letter to mesh is screwed, and generates a wrong face setup that can then screw later editing of the mesh.
This happens also with default font (bfont). All letters have terrible topology, but no other letter seems to be converted as wrong as T or t

I found about this following a user issue on BSE:
https://blender.stackexchange.com/questions/86292/solidified-extruded-text-mesh-errors

...of course he has trouble both:

extruding and then converting
converting andf then using solidify modifier

Exact steps for others to reproduce the error

Insert a default text object ("Text"),
then convert to mesh (ALT-C)
in edit mode, set face select mode
look at the faces of the T letter O_o

To better see it:

Insert a default text object (just an uppercase "T"),

then convert to mesh (ALT-C)
in edit mode, set face select mode
set "solid" shading mode and "limit selection to visible"

then use CTRL-B to select all the visible faces

then, invert the selection (CTRL-I)

...there are "hidden faces" there...

**System Information** Operating system and graphics card Windows 7sp1x64 renderer: 'Intel(R) Q45/Q43 Express Chipset' vendor: 'Intel' version: '2.1.0 - Build 8.15.10.2869' **Blender Version** 2.79 rc1, ie: 2.78 (sub 5), branch: master, commit date: 2017-07-13 10:50, hash: 248bba81e7a and also blender-2.78.0-git.9e929c9-windows64 ...and back to 2.49b ! **Short description of error** The conversion of the "T" or "t" (upper case or lowercase) letter to mesh is screwed, and generates a wrong face setup that can then screw later editing of the mesh. This happens also with default font (bfont). All letters have terrible topology, but no other letter seems to be converted as wrong as T or t I found about this following a user issue on BSE: https://blender.stackexchange.com/questions/86292/solidified-extruded-text-mesh-errors ...of course he has trouble both: - extruding and then converting - converting andf then using solidify modifier **Exact steps for others to reproduce the error** Insert a default text object ("Text"), then convert to mesh (ALT-C) in edit mode, set face select mode look at the faces of the T letter O_o To better see it: Insert a default text object (just an uppercase "T"), then convert to mesh (ALT-C) in edit mode, set face select mode set "solid" shading mode and "limit selection to visible" then use CTRL-B to select all the visible faces then, invert the selection (CTRL-I) ...there are "hidden faces" there...

Marco Ardito commented

2017-07-24 12:04:16 +02:00

Changed status to: 'Open'

Marco Ardito commented

2017-07-24 12:04:16 +02:00

Added subscriber: @MarcoArdito

blender-admin commented

2017-07-24 12:04:16 +02:00

#84519 was marked as duplicate of this issue

matali23 commented

2017-07-24 14:44:14 +02:00

Added subscriber: @matali23

matali23 commented

2017-07-24 14:44:14 +02:00

the triangulation indeed produces 0 area degenerated faces, which can't be cleaned with limited dissolve.

Pyros commented

2017-07-24 14:47:21 +02:00

Added subscriber: @Pyros

matali23 commented

2017-07-24 14:48:37 +02:00

The 3D print toolbox can't make the meshes manifold and find a lot of errors, mostly due to zero area faces. It happens on e too, but e can be cleaned with limited dissolve.

Pyros commented

2017-07-24 15:51:43 +02:00

Like matali23 said limited dissolve wont work with 0 area faces, but the degenerate dissolve will. The solution for me (maybe only in my case) was to apply degenerate dissolve untill i had no edge or face removed then triangulate again the mesh.
Unfortunately I don't now if degenerate dissolve can have any unwanted side effect.

Like matali23 said limited dissolve wont work with 0 area faces, but the degenerate dissolve will. The solution for me (maybe only in my case) was to apply degenerate dissolve untill i had no edge or face removed then triangulate again the mesh. Unfortunately I don't now if degenerate dissolve can have any unwanted side effect.

Bastien Montagne commented

2017-07-26 16:30:06 +02:00

Added subscriber: @mont29

Bastien Montagne commented

2017-07-26 16:30:06 +02:00

Changed status from 'Open' to: 'Archived'

Bastien Montagne closed this issue

2017-07-26 16:30:06 +02:00

Bastien Montagne self-assigned this 2017-07-26 16:30:06 +02:00

Bastien Montagne commented

2017-07-26 16:30:06 +02:00

Thanks for the report, but text “meshification” leading to terrible topology is very old know issue, nothing new here, that is not considered as a bug currently.

Robert Guetzkow commented

2021-01-08 14:56:33 +01:00

Added subscribers: @philo, @rjg

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conversion of text objects to mesh generate improper mesh for letter T (even with default text font) #52171