Solidify modifier showing opposite output than usual. #95149

New Issue

Aminul Islam · 2022-01-23T06:13:40+01:00

Aminul Islam commented

2022-01-23 06:13:40 +01:00

System Information
Operating system: Windows-10-10.0.19042-SP0 64 Bits
Graphics card: Intel(R) Iris(R) Plus Graphics Intel 4.5.0 - Build 27.20.100.9079

Blender Version
Broken: version: 3.0.0, branch: master, commit date: 2021-12-02 18:35, hash: f1cca30557
Worked: (newest version of Blender that worked as expected)

Short description of error
I was following Blender Guru's Donut Tutorial. but when i try to apply solidify modifier on the icing, it shows me the inverted result. it shows the icing way thicker when the offset value is -1.000. I've applied the scale value before adding solidify modifier but the problem doesnt solve. Not that it happens everytime. It shows correct output sometimes. I'm attaching the .blend file so that u can see what's wrong.
solidify bug.blend

Exact steps for others to reproduce the error

Create a mesh : Torus.
Major Segments: 40 ; Minor Segments: 16 / Major Radius 0.91 ; Minor Radius 0.61
Scale down to 0.1m by pressing s. (All Axis)
Ctrl+A to apply scale value.
Shade smooth + Add subdivision surface Level:1 on Viewport.
Press Tab to go to Edit Mode. Turn on x-ray and select top haf of the torus.
Shift+D to make a duplicate of the selected parts and Press P to seperate the duplicated part. Rename the part 'Icing'.
Add Solidify modifier on the icing.

After that it shows wrong output.
Is there anything i did wrong? or its a bug? please let me know.

Thanks,
Aminul.

**System Information** Operating system: Windows-10-10.0.19042-SP0 64 Bits Graphics card: Intel(R) Iris(R) Plus Graphics Intel 4.5.0 - Build 27.20.100.9079 **Blender Version** Broken: version: 3.0.0, branch: master, commit date: 2021-12-02 18:35, hash: `f1cca30557` Worked: (newest version of Blender that worked as expected) **Short description of error** I was following Blender Guru's Donut Tutorial. but when i try to apply solidify modifier on the icing, it shows me the inverted result. it shows the icing way thicker when the offset value is -1.000. I've applied the scale value before adding solidify modifier but the problem doesnt solve. Not that it happens everytime. It shows correct output sometimes. I'm attaching the .blend file so that u can see what's wrong. [solidify bug.blend](https://archive.blender.org/developer/F12817912/solidify_bug.blend) **Exact steps for others to reproduce the error** 1. Create a mesh : Torus. 2. Major Segments: 40 ; Minor Segments: 16 / Major Radius 0.91 ; Minor Radius 0.61 3. Scale down to 0.1m by pressing s. (All Axis) 4. Ctrl+A to apply scale value. 5. Shade smooth + Add subdivision surface Level:1 on Viewport. 6. Press Tab to go to Edit Mode. Turn on x-ray and select top haf of the torus. 7. Shift+D to make a duplicate of the selected parts and Press P to seperate the duplicated part. Rename the part 'Icing'. 8. Add Solidify modifier on the icing. After that it shows wrong output. Is there anything i did wrong? or its a bug? please let me know. Thanks, Aminul.

Aminul Islam commented

2022-01-23 06:13:40 +01:00

Added subscriber: @aminul2111

Alaska commented

2022-01-23 07:25:34 +01:00

Added subscriber: @Alaska

Alaska commented

2022-01-23 07:25:34 +01:00

Changed status from 'Needs Triage' to: 'Needs User Info'

Alaska commented

2022-01-23 07:25:34 +01:00

The issue is most likely caused by the normals of the faces which the solidify modifier is applying too facing the wrong way.

Looking at the file you provided, everything seems to be correct for the model you have. It's not the "desired" result due to the normals being incorrect for the result you want, but I do not see a bug here.

Can you confirm the donut looks like this to you (This image was taken from below the donut)? Because if it does look like that, then this is the expected result with the model you have and their is no bug here.

The issue is most likely caused by the normals of the faces which the solidify modifier is applying too facing the wrong way. Looking at the file you provided, everything seems to be correct for the model you have. It's not the "desired" result due to the normals being incorrect for the result you want, but I do not see a bug here. ![Broken Donut.png](https://archive.blender.org/developer/F12818023/Broken_Donut.png) Can you confirm the donut looks like this to you (This image was taken from below the donut)? Because if it does look like that, then this is the expected result with the model you have and their is no bug here.

Gilberto Rodrigues commented

2022-01-23 07:50:54 +01:00

Added subscriber: @Gilberto.R

Gilberto Rodrigues commented

2022-01-23 07:50:54 +01:00

It's not a bug. The solidify is working correctly, in the right direction, but the shape is a bit different depending on the order of the modifiers. You can change the order of the modifiers to get the result you want, if I understood correctly.

Gilberto Rodrigues commented

2022-01-23 20:05:49 +01:00

OK, looking at the provided file, it's what @Alaska said. The normal of the faces are inverted, probably because of applying negative scale. You just have to flip the faces normals.

Pratik Borhade commented

2022-02-08 02:55:10 +01:00

Added subscriber: @PratikPB2123

Pratik Borhade commented

2022-02-08 02:55:10 +01:00

Changed status from 'Needs User Info' to: 'Archived'

Pratik Borhade closed this issue

2022-02-08 02:55:10 +01:00

Pratik Borhade commented

2022-02-08 02:55:10 +01:00

No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed.

Thanks again for the report. If the problem persists please open a new report with the required information.

No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed. Thanks again for the report. If the problem persists please open a new report with the required information.

Karina commented

2022-04-20 16:01:25 +02:00

Added subscriber: @orleana.v

Karina commented

2022-04-20 16:01:25 +02:00

Hey, @aminul2111

did you manage to find a solution for this? I'm facing exactly the same issue with the same model

Hey, @aminul2111 did you manage to find a solution for this? I'm facing exactly the same issue with the same model

Alaska commented

2022-04-21 03:56:19 +02:00

In #95149#1343930, @orleana.v wrote:
Hey, @aminul2111

did you manage to find a solution for this? I'm facing exactly the same issue with the same model

The issue is most likely caused by incorrect normals for the result you want. For advice on how to use Blender, please follow tutorials or ask for advice on Blender support sites. https://www.blender.org/community/

If you believe you have found a bug, please file a bug report by selecting from the top of Blender {nav Help -> Report a Bug} and filling out all the relevant information.

> In #95149#1343930, @orleana.v wrote: > Hey, @aminul2111 > > did you manage to find a solution for this? I'm facing exactly the same issue with the same model The issue is most likely caused by incorrect normals for the result you want. For advice on how to use Blender, please follow tutorials or ask for advice on Blender support sites. https://www.blender.org/community/ If you believe you have found a bug, please file a bug report by selecting from the top of Blender {nav Help -> Report a Bug} and filling out all the relevant information.

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

Solidify modifier showing opposite output than usual. #95149