Subdivision Modifier and visibility of Objects #96506

New Issue

Alfred Borg · 2022-03-15T21:48:33+01:00

Alfred Borg commented

2022-03-15 21:48:33 +01:00

Device name DESKTOP-UT256NR
Processor AMD Ryzen 3 3200U with Radeon Vega Mobile Gfx 2.60 GHz
Installed RAM 8.00 GB (5.92 GB usable)
Device ID 6A18E30F-412F-4DA1-A501-C3A7446ABFB0
Product ID 00325-81651-00692-AAOEM
System type 64-bit operating system, x64-based processor
Pen and touch Pen and touch support with 10 touch points

Blender Version
Broken: version: 3.1.0, branch: master, commit date: 2022-03-08 18:16, hash: c77597cd0e
Worked: (newest version of Blender that worked as expected)

Blender 3D

I have uploaded the latest version of Blender 3.1.

When I opened Blender 3.1 and loaded the last file I created using Blender 3.0.1 the following happened:
Several objects of the Scene did not display although all the Scene information was intact. (see Fig 1)

After a few experiments I discovered that the missing objects re-appeared when the Subdivision Modifier was applied to the Object or the 'Display Modifier in viewport' was toggled OFF (Fig 2 ).

The object remained invisible in Render until the Subdivision Modifier was actually applied to the object or the button 'use modifier in Render' was toggled OFF (Fig 3).

I believe that previous versions of Blender did not require the actual application of the Subdivision Modifiers to the object for Viewport or Render.

This leads me to ask: “Is there an Order and Timing when one should Apply the Modifiers to the Object?”

Another issue that I ran into was that the Background of the Render is red meaning it is missing something or needs some adjustment. I never encountered this in the older versions, I still have not found what I must do to correct this.

Has anyone else experienced these situations? Was it something the Blender team intended for Blender 3.1?

Several .png screen prints are included to present the situation of my encounter.
Comments and suggestions will be appreciated.

Fig 1 – file originally created using Blender 3.0.1 opened in Blender 3.1

Fig 2 – Realtime 'Display Modifier in viewport' toggled OFF

Fig 3 – Render with 'use modifier in Render' button ON

Fig 4 - Render with 'use modifier in Render' button OFF

Device name DESKTOP-UT256NR Processor AMD Ryzen 3 3200U with Radeon Vega Mobile Gfx 2.60 GHz Installed RAM 8.00 GB (5.92 GB usable) Device ID 6A18E30F-412F-4DA1-A501-C3A7446ABFB0 Product ID 00325-81651-00692-AAOEM System type 64-bit operating system, x64-based processor Pen and touch Pen and touch support with 10 touch points **Blender Version** Broken: version: 3.1.0, branch: master, commit date: 2022-03-08 18:16, hash: `c77597cd0e` Worked: (newest version of Blender that worked as expected) Blender 3D I have uploaded the latest version of Blender 3.1. When I opened Blender 3.1 and loaded the last file I created using Blender 3.0.1 the following happened: Several objects of the Scene did not display although all the Scene information was intact. (see Fig 1) After a few experiments I discovered that the missing objects re-appeared when the Subdivision Modifier was applied to the Object or the 'Display Modifier in viewport' was toggled OFF (Fig 2 ). The object remained invisible in Render until the Subdivision Modifier was actually applied to the object or the button 'use modifier in Render' was toggled OFF (Fig 3). I believe that previous versions of Blender did not require the actual application of the Subdivision Modifiers to the object for Viewport or Render. This leads me to ask: “Is there an Order and Timing when one should Apply the Modifiers to the Object?” ``` ``` Another issue that I ran into was that the Background of the Render is red meaning it is missing something or needs some adjustment. I never encountered this in the older versions, I still have not found what I must do to correct this. Has anyone else experienced these situations? Was it something the Blender team intended for Blender 3.1? Several .png screen prints are included to present the situation of my encounter. Comments and suggestions will be appreciated. ![Screenshot (217).png](https://archive.blender.org/developer/F12929110/Screenshot__217_.png) Fig 1 – file originally created using Blender 3.0.1 opened in Blender 3.1 ![Screenshot (217).png](https://archive.blender.org/developer/F12929112/Screenshot__217_.png) Fig 2 – Realtime 'Display Modifier in viewport' toggled OFF ![Screenshot (217).png](https://archive.blender.org/developer/F12929113/Screenshot__217_.png) Fig 3 – Render with 'use modifier in Render' button ON ![Screenshot (218).png](https://archive.blender.org/developer/F12929114/Screenshot__218_.png) Fig 4 - Render with 'use modifier in Render' button OFF

Alfred Borg commented

2022-03-15 21:48:34 +01:00

Added subscriber: @Alfred-Borg

Alfred Borg commented

2022-03-15 21:53:12 +01:00

The problem with the red background was resolved by adding World Shading.
Other people do not seem to be able to produce the same result.
I have loaded Blender 3.1 from the Blender.org website, after removing the older versions from the loading location.

The problem with the red background was resolved by adding World Shading. Other people do not seem to be able to produce the same result. I have loaded Blender 3.1 from the Blender.org website, after removing the older versions from the loading location.

Alfred Borg self-assigned this 2022-03-15 21:53:58 +01:00

Richard Antalik commented

2022-03-15 21:58:51 +01:00

Added subscriber: @iss

Alfred Borg was unassigned by Richard Antalik

2022-03-15 21:58:51 +01:00

Richard Antalik commented

2022-03-15 21:58:51 +01:00

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

Richard Antalik commented

2022-03-15 21:58:51 +01:00

Please upload sample .blend file you have problems with. Pink shading usually means, that textures are missing.

Pratik Borhade commented

2022-03-16 05:04:23 +01:00

Added subscriber: @PratikPB2123

Pratik Borhade commented

2022-03-16 05:04:23 +01:00

This leads me to ask: “Is there an Order and Timing when one should Apply the Modifiers to the Object?”

I don't think so. Issue is actually related to GPU subdivision: #94936 (GPU subdivision option with subdivision surface modifier collapses geometry (AMD GPU))
Upgrading your GPU driver will likely to fix this issue: https://docs.blender.org/manual/en/dev/troubleshooting/gpu/index.html
Disabling GPU subdivision from Preferences will also work: {nav Prefereneces > Viewport > Subdivision > GPU Subdivision}

> This leads me to ask: “Is there an Order and Timing when one should Apply the Modifiers to the Object?” I don't think so. Issue is actually related to GPU subdivision: #94936 (GPU subdivision option with subdivision surface modifier collapses geometry (AMD GPU)) Upgrading your GPU driver will likely to fix this issue: https://docs.blender.org/manual/en/dev/troubleshooting/gpu/index.html Disabling GPU subdivision from Preferences will also work: {nav Prefereneces > Viewport > Subdivision > GPU Subdivision}

Pratik Borhade commented

2022-03-16 05:05:08 +01:00

Closed as duplicate of #94936

Pratik Borhade closed this issue

2022-03-16 05:05:08 +01:00

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Subdivision Modifier and visibility of Objects #96506