Lights linked via a collection don't cast shadows #67784

New Issue

Andy H · 2019-07-27T07:34:42+02:00

Andy H commented

2019-07-27 07:34:42 +02:00

System Information
Operating system: Windows 10 1803
Graphics card: Nvidia GTX 1060 6GB

Blender Version
Broken: 2.80 Release Candidate 2

Short description of error
If you link a collection containing a light, the light does not cast shadows. If you link the light object directly (outside of the collection), it does cast shadows.

Exact steps for others to reproduce the error

Start with an empty scene
Create a default cube mesh at origin
Add a plane mesh. Set scale to 10 on x and y axes, location to (0, 0, -1)
Add a point light. Set location to (5, 5, 5) and power to 1000.
Create a collection named "TestCollection" and add the cube, plane, and light to it.
Set render engine to Eevee. Switch to viewport shading, observe the shadow cast from the cube.
Start a new scene. Remove default lamp.
Link "TestCollection" into this scene.
Set render engine to Eevee. Switch to viewport shading, observe that there is no shadow cast.

**System Information** Operating system: Windows 10 1803 Graphics card: Nvidia GTX 1060 6GB **Blender Version** Broken: 2.80 Release Candidate 2 **Short description of error** If you link a collection containing a light, the light does not cast shadows. If you link the light object directly (outside of the collection), it does cast shadows. **Exact steps for others to reproduce the error** 1) Start with an empty scene 2) Create a default cube mesh at origin 3) Add a plane mesh. Set scale to 10 on x and y axes, location to (0, 0, -1) 4) Add a point light. Set location to (5, 5, 5) and power to 1000. 5) Create a collection named "TestCollection" and add the cube, plane, and light to it. 6) Set render engine to Eevee. Switch to viewport shading, observe the shadow cast from the cube. 7) Start a new scene. Remove default lamp. 8) Link "TestCollection" into this scene. 9) Set render engine to Eevee. Switch to viewport shading, observe that there is no shadow cast.

Andy H commented

2019-07-27 07:34:42 +02:00

Added subscriber: @complexly

ronan ducluzeau commented

2019-07-27 14:27:40 +02:00

Added subscriber: @zeauro

ronan ducluzeau commented

2019-07-27 14:27:40 +02:00

Well, here. When I link Collection to second scene, shadow is rendered.
But if in new scene, I add a collection instance of "TestCollection" : there is no shadow.

So, please, precise how you link collection in second scene.
Because if you are referring to collection instances, this bugreport may be a duplicate.

Well, here. When I link Collection to second scene, shadow is rendered. But if in new scene, I add a collection instance of "TestCollection" : there is no shadow. So, please, precise how you link collection in second scene. Because if you are referring to collection instances, this bugreport may be a duplicate.

Andy H commented

2019-07-28 04:48:54 +02:00

Sorry, I'm not familiar with Blender enough to understand the difference between a normal? link and a Collection instance.

What I did for the second scene:

Choose File > Link...
Select the first scene
Choose "Collection" folder
Then "TestCollection"

HOWEVER testing it just now, I notice that the "Instance Collections" checkbox is enabled in the file dialog, so it may indeed be a collection instance.

Update: Ok I unchecked it and the shadow renders, so yes it is a collection instance.

Sorry, I'm not familiar with Blender enough to understand the difference between a normal? link and a Collection instance. What I did for the second scene: 1) Choose File > Link... 2) Select the first scene 3) Choose "Collection" folder 4) Then "TestCollection" HOWEVER testing it just now, I notice that the "Instance Collections" checkbox is enabled in the file dialog, so it may indeed be a collection instance. Update: Ok I unchecked it and the shadow renders, so yes it is a collection instance.

Philipp Oeser commented

2019-07-30 14:19:41 +02:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2019-07-30 14:19:41 +02:00

Looks like a duplicate of #57693

Philipp Oeser commented

2019-07-30 14:20:03 +02:00

Closed as duplicate of #57693

Philipp Oeser closed this issue

2019-07-30 14:20:03 +02:00

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

Lights linked via a collection don't cast shadows #67784