Instanced children objects to parents are invisible in Cycles render #58202

New Issue

Alaska · 2018-11-29T22:26:00+01:00

Alaska commented

2018-11-29 22:26:00 +01:00

System Information:
CPU: Ryzen 5 2600
GPU: RX 570 4GB
OS: Windows 10 Home

Blender Version
Broken: Blender 2.8 Beta 26d5a3625e

Short description of error:
When a child object is instanced to a parent, it is invisible is the Cycles render. If this is an intentional change, then it should be consistent with EEVEE and I'd like to know of a way of achieving the results capable in Blender 2.79b

Exact steps for others to reproduce the error:

Open Blender and switch to the 3D viewport and the cycles render engine.
Delete everything in the viewport.
Add a plane.
Add a cube and scale it down (E.G. x0.1)
In the object properties panel for the cube under relations, set the plane as it's parent.
In the object properties panel for the plane under instancing, select "verts".
Add a light object to the scene so you can see shading on objects in the scene.
Enter rendered viewport mode and notice that the plane and the instanced cubes are invisible. (Same applies for final renders)

Here's a file to test with:
Invisible Instancing.blend

**System Information:** CPU: Ryzen 5 2600 GPU: RX 570 4GB OS: Windows 10 Home **Blender Version** Broken: Blender 2.8 Beta 26d5a3625ed **Short description of error:** When a child object is instanced to a parent, it is invisible is the Cycles render. If this is an intentional change, then it should be consistent with EEVEE and I'd like to know of a way of achieving the results capable in Blender 2.79b **Exact steps for others to reproduce the error:** 1. Open Blender and switch to the 3D viewport and the cycles render engine. 2. Delete everything in the viewport. 3. Add a plane. 4. Add a cube and scale it down (E.G. x0.1) 5. In the object properties panel for the cube under relations, set the plane as it's parent. 6. In the object properties panel for the plane under instancing, select "verts". 7. Add a light object to the scene so you can see shading on objects in the scene. 8. Enter rendered viewport mode and notice that the plane and the instanced cubes are invisible. (*Same applies for final renders*) Here's a file to test with: [Invisible Instancing.blend](https://archive.blender.org/developer/F5759926/Invisible_Instancing.blend)

Alaska commented

2018-11-29 22:26:00 +01:00

Added subscriber: @Alaska

Roland P. Wyant commented

2018-12-02 12:52:16 +01:00

Added subscriber: @byRo.br

Roland P. Wyant commented

2018-12-02 12:52:16 +01:00

Couple more comments, might help..

In the Viewport, the instanced objects do obscure the 3D grid (but, nothing else);
If you enable "Wireframe" in the Viewport Display of the orignal instanced object, you can at least see the object's instances (while waiting for the bugfix)

Couple more comments, might help.. In the Viewport, the instanced objects do obscure the 3D grid *(but, nothing else)*; If you enable "Wireframe" in the Viewport Display of the orignal instanced object, you can at least **see** the object's instances *(while waiting for the bugfix)*

Roland P. Wyant commented

2018-12-05 02:20:49 +01:00

OK. Maybe not so much a bug, more a change to adapt to the Collections = Groups scheme....

Open Blender and switch to the 3D viewport and the cycles render engine.
Delete everything in the viewport.
Add a plane.
Add a cube and scale it down (E.G. x0.1)

Move (M) the cube to a new collection
Right-click on the new collection and select "Instance to Scene"

In the object properties panel for the new "instanced" collection under relations, set the plane as it's parent.
In the object properties panel for the plane under instancing, select "verts".
Add a light object to the scene so you can see shading on objects in the scene.
Enter rendered viewport mode and notice that the plane and the instanced cubes are now visible. (Same applies for final renders)

OK. Maybe not so much a bug, more a change to adapt to the Collections = Groups scheme.... - Open Blender and switch to the 3D viewport and the cycles render engine. - Delete everything in the viewport. - Add a plane. - Add a cube and scale it down (E.G. x0.1) **Move (M) the cube to a new collection** **Right-click on the new collection and select *"Instance to Scene"*** - In the object properties panel for the *new "instanced" collection* under relations, set the plane as it's parent. - In the object properties panel for the plane under instancing, select "verts". - Add a light object to the scene so you can see shading on objects in the scene. - Enter rendered viewport mode and notice that the plane and the instanced cubes are **now visible.** (Same applies for final renders) ``` ``` ``` ```

Philipp Oeser commented

2018-12-14 12:46:20 +01:00

Closed as duplicate of #58956

Philipp Oeser closed this issue

2018-12-14 12:46:20 +01:00

blender-admin commented

2018-12-18 18:18:00 +01:00

This issue was referenced by 0edd93effb

This issue was referenced by 0edd93effbc1c0adf7aa9c5647ef69845496f669

Brecht Van Lommel commented

2018-12-21 16:07:07 +01:00

Changed status from 'Duplicate' to: 'Resolved'

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Instanced children objects to parents are invisible in Cycles render #58202