Composite / OpenEXRMultiLayer output problem when no renderlayer is used #41301

New Issue

Boris Fruhauf · 2014-08-03T08:20:02+02:00

Boris Fruhauf commented

2014-08-03 08:20:02 +02:00

Linux Mint 14 Graphic Card: Geforce660Ti

Broken: 2.71 official (2014-06-25 18{F101314}:36 Hash 9337574)

Hi,
The render layer disappears in OpenEXRMultiLayer file when you combine two layers from a OpenEXRMultiLayer file and save it as an OpenEXRMultiLayer file.
The result is OK when you add a RenderLayer even if the render layer is not connected to the composite.

To reproduce it:
open the .blend file joined, F12 then Image/Save a copy >KO (you can see the result in the image not connected)
open the .blend file joined, add a render layer (RL1 for instance), F12 then Image/Save a copy >OK

Linux Mint 14 Graphic Card: Geforce660Ti Broken: 2.71 official (2014-06-25 18{[F101314](https://archive.blender.org/developer/F101314/EXRRL.blend)}:36 Hash 9337574) Hi, The render layer disappears in OpenEXRMultiLayer file when you combine two layers from a OpenEXRMultiLayer file and save it as an OpenEXRMultiLayer file. The result is OK when you add a RenderLayer even if the render layer is not connected to the composite. To reproduce it: open the .blend file joined, F12 then Image/Save a copy >KO (you can see the result in the image not connected) open the .blend file joined, add a render layer (RL1 for instance), F12 then Image/Save a copy >OK

Boris Fruhauf commented

2014-08-03 08:20:02 +02:00

Changed status to: 'Open'

Boris Fruhauf commented

2014-08-03 08:20:02 +02:00

Added subscriber: @boris.fruhauf

Boris Fruhauf commented

2014-08-03 08:56:36 +02:00

The results image when you add a render layer seems to be:

for the composite, the result expected (combination of the OpenEXRMultiLayer layers)
for the layer, the active render layer of the scene...

So as I understand:

when you add a render layer it is KO and it may be the real but very minor bug (you don't need to use the individual layer),
when you don't add a render layer, you have only the the combination but it is normal.

What I wanted to do initially is to combine 2 EXR layer in one OpenEXR Multi layer file, as I understand there is not such an automatic functionality today (you can use 'File Output' node, but you will have to create a lot of inputs manually for each pass and then combine the passes from the two EXR layer).

The results image when you add a render layer seems to be: > for the composite, the result expected (combination of the OpenEXRMultiLayer layers) > for the layer, the active render layer of the scene... So as I understand: - when you add a render layer it is KO and it may be the real but very minor bug (you don't need to use the individual layer), - when you don't add a render layer, you have only the the combination but it is normal. What I wanted to do initially is to combine 2 EXR layer in one OpenEXR Multi layer file, as I understand there is not such an automatic functionality today (you can use 'File Output' node, but you will have to create a lot of inputs manually for each pass and then combine the passes from the two EXR layer).

Bastien Montagne commented

2014-08-03 10:11:58 +02:00

Added subscriber: @mont29

Bastien Montagne commented

2014-08-03 10:11:58 +02:00

No attached file.

Boris Fruhauf commented

2014-08-03 11:40:17 +02:00

EXRRL.blend

[EXRRL.blend](https://archive.blender.org/developer/F101335/EXRRL.blend)

Bastien Montagne commented

2014-08-10 15:53:42 +02:00

Changed status from 'Open' to: 'Archived'

Bastien Montagne closed this issue

2014-08-10 15:53:42 +02:00

Bastien Montagne self-assigned this 2014-08-10 15:53:42 +02:00

Bastien Montagne commented

2014-08-10 15:53:42 +02:00

There is no bug here… If you do a compositing without any render layer, then scene itself is never rendered, and renderlayers remain empty in final multilayer EXR, that’s to be expected. Thanks for the report anyway.

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Composite / OpenEXRMultiLayer output problem when no renderlayer is used #41301