bevel modifier material assignment unpredictable #34664

New Issue

sarazin jean francois · 2013-03-17T12:01:07+01:00

2013-03-17 12:01:07 +01:00

%%%--- Operating System, Graphics card ---
Win 7 Geforce 465

- Blender version with error, and version that worked ---

Official 2.66 and and daily 55349 have the same behavior.

- Short description of error ---

When you applied a bevel modifier to an object, and you have two different materials on each side of the beveled edge, the new beveled faces won't have all the same material.
Maybe we could have a material index slot in the modifier, so we can choose to assign an exact material to the new beveled faces.

- Steps for others to reproduce the error (preferably based on attached .blend file) ---

just open the scene, it has a very simple object set up.

%%%

%%%--- Operating System, Graphics card --- Win 7 Geforce 465 - Blender version with error, and version that worked --- Official 2.66 and and daily 55349 have the same behavior. - Short description of error --- When you applied a bevel modifier to an object, and you have two different materials on each side of the beveled edge, the new beveled faces won't have all the same material. Maybe we could have a material index slot in the modifier, so we can choose to assign an exact material to the new beveled faces. - Steps for others to reproduce the error (preferably based on attached .blend file) --- just open the scene, it has a very simple object set up. %%%

sarazin jean francois commented

2013-03-17 12:01:07 +01:00

Changed status to: 'Open'

Howard Trickey commented

2013-03-18 18:12:03 +01:00

%%%The current code tries to find the 'closest' existing face and assign the material from that. This is admittedly ambiguous when the bevel has an odd number of segments.

I'm not sure that just putting a material index helps though: that only seems useful when all the faces around the bevel already have the same material (in which case current code will work), else the beveled edges stick out with a different material (I guess that's sometimes what is wanted, but seems rare to me).
%%%

%%%The current code tries to find the 'closest' existing face and assign the material from that. This is admittedly ambiguous when the bevel has an odd number of segments. I'm not sure that just putting a material index helps though: that only seems useful when all the faces around the bevel already have the same material (in which case current code will work), else the beveled edges stick out with a different material (I guess that's sometimes what is wanted, but seems rare to me). %%%

sarazin jean francois commented

2013-03-20 19:18:48 +01:00

%%%This material index will be used only if the user check it. The behaviour will be the same as the solidify modifier. The solidify modifier have an option to specify the material for the new faces.
I think it is useful for mechanical modeling. I often have a material on a side, and another on the other side, and I need to know which material will be used on the beveled faces.

I don't get "the closest" existing face, you mean in world space? Or closest in the face list?%%%

%%%This material index will be used only if the user check it. The behaviour will be the same as the solidify modifier. The solidify modifier have an option to specify the material for the new faces. I think it is useful for mechanical modeling. I often have a material on a side, and another on the other side, and I need to know which material will be used on the beveled faces. I don't get "the closest" existing face, you mean in world space? Or closest in the face list?%%%

Sergey Sharybin commented

2014-05-29 09:58:15 +02:00

Added subscriber: @Sergey

Sergey Sharybin commented

2014-05-29 09:58:15 +02:00

@howardt, what would be the plan here?

Howard Trickey commented

2014-05-29 13:53:30 +02:00

This is a feature request. It is easy to do, just copy the UI from solidify modifier for specifying a material index for newly generated faces, and pass that through as a new parameter to the main bevel routine. I don't want to do this so close to a release, so wait until after the current release to do this.

blender-admin commented

2014-07-17 15:20:22 +02:00

This issue was referenced by 70453c578d

This issue was referenced by 70453c578dcdce5577015e1cd7be99d1b810215d

Howard Trickey commented

2014-07-17 15:25:00 +02:00

Changed status from 'Open' to: 'Resolved'

Howard Trickey closed this issue

2014-07-17 15:25:00 +02:00

Howard Trickey commented

2014-07-17 15:25:00 +02:00

Closed by commit 70453c578d.

Closed by commit 70453c578d.

Sign in to join this conversation.

No Label

Download

What's New

Blender Studio

Manual

Developers Blog

Documentation

Benchmark

Blender Conference

Development Fund

One-time Donations

bevel modifier material assignment unpredictable #34664