Page MenuHome
Create Task
Maniphest T44537

Cycles generated texture mapping stretching problem
Closed, ArchivedPublic
Actions

Description

System Information
WIn 7 64 bit

Blender Version
Broken: 2,74 (from graphicall.org), 3824e0f1
Worked: (optional)

Short description of error
When I use box mapping technique, bricks are mapped ugly on object that has solidify modifier, and hole cut with boolean modifier.

Exact steps for others to reproduce the error
http://www.filedropper.com/bug
Just open this scene above
and render it in vieport. Then if you go in and out of edit mode of Cube few times, you will see every second time uv are stretched, but other times they work ok.

Event Timeline

Jose Conseco (joseconseco) created this task.Apr 28 2015, 3:35 PM
Jose Conseco (joseconseco) raised the priority of this task from to 90.
Jose Conseco (joseconseco) updated the task description. (Show Details)
Jose Conseco (joseconseco) added a project: Add-ons (Community).
Jose Conseco (joseconseco) edited a custom field.
Jose Conseco (joseconseco) added a subscriber: Jose Conseco (joseconseco).
Jose Conseco (joseconseco) added a comment.Apr 28 2015, 3:47 PM

It seems I cannot edit this task, but It should go to Cycles category, and not Addons. Sorry my bad.

Bastien Montagne (mont29) added a subscriber: Bastien Montagne (mont29).Apr 28 2015, 4:21 PM

Please always attach files here, much simpler and persistent.

Bug.blend628 KBDownload

Bastien Montagne (mont29) edited projects, added BF Blender, Cycles; removed Add-ons (Community).Apr 28 2015, 4:21 PM
Bastien Montagne (mont29) added a subscriber: Sergey Sharybin (sergey).
Sergey Sharybin (sergey) claimed this task.Apr 28 2015, 4:32 PM

Will have a look later this evening.

Bastien Montagne (mont29) lowered the priority of this task from 90 to Normal.Apr 28 2015, 7:39 PM
Sergey Sharybin (sergey) changed the task status from Unknown Status to Unknown Status.May 11 2015, 3:08 PM

This is annoying, but it's not so trivial to solve. The problem is coming from Carve library which we're using for boolean operations and which doesn't really have determenistic algorithm for linking holes. We could try improving it, but this library is not really developed by us and has several other issues.

Would be more efficient to focus on the boolean recode branch where we started to use bmesh to perform boolean operation. That branch is not rally usable atm. but it shouldn't be difficult to wrap it up.

So thanks for the report, but it's more a TODO. Meanwhile you could try adding triangulation modifier prior to boolean.