Layer.load_from_file() have some problems loading a Multi-layered EXR files #108980

New Issue

Pedro A. · 2023-06-14T16:37:53+02:00

Pedro A. commented

2023-06-14 16:37:53 +02:00

System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 3060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 535.98

Blender Version
Broken: version: 4.0.0 Alpha, branch: main, commit date: 2023-06-12 06:44, hash: 84f1c4e16cd7
Worked: (newest version of Blender that worked as expected)

Short description of error
Layer.load_from_file() have some problems loading a Multl-layered EXR files that are loaded in other viewer's like Tev or DJV

self.result.layers[0].load_from_file(img_file_path, x=0, y=0)
RuntimeError: Error: RE_layer_load_from_file: failed to load '/vespa_pbrt/Scene_RenderLayer_000.exr'

multilayer read: unknown channel token: Nsx
multilayer read: unknown channel token: Nsy
multilayer read: unknown channel token: Nsz
multilayer read: unknown channel token: dzdx
multilayer read: unknown channel token: dzdy
warning, channel with no rect set Nsx
warning, channel with no rect set Nsy
warning, channel with no rect set Nsz
warning, channel with no rect set dzdx
warning, channel with no rect set dzdy

Exact steps for others to reproduce the error
The steps required a personal render engine project that is not released yet.

**System Information** Operating system: Windows-10-10.0.19041-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 3060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 535.98 **Blender Version** Broken: version: 4.0.0 Alpha, branch: main, commit date: 2023-06-12 06:44, hash: `84f1c4e16cd7` Worked: (newest version of Blender that worked as expected) **Short description of error** Layer.load_from_file() have some problems loading a Multl-layered EXR files that are loaded in other viewer's like Tev or DJV ``` self.result.layers[0].load_from_file(img_file_path, x=0, y=0) RuntimeError: Error: RE_layer_load_from_file: failed to load '/vespa_pbrt/Scene_RenderLayer_000.exr' multilayer read: unknown channel token: Nsx multilayer read: unknown channel token: Nsy multilayer read: unknown channel token: Nsz multilayer read: unknown channel token: dzdx multilayer read: unknown channel token: dzdy warning, channel with no rect set Nsx warning, channel with no rect set Nsy warning, channel with no rect set Nsz warning, channel with no rect set dzdx warning, channel with no rect set dzdy ``` **Exact steps for others to reproduce the error** The steps required a personal render engine project that is not released yet.

exr_layered_djv.png

177 KiB

exr_layered.png

174 KiB

exr_layered_into_blender.png

905 KiB

Scene_RenderLayer_000.exr

65 MiB

Pedro A. added the

labels 2023-06-14 16:37:54 +02:00

Brecht Van Lommel commented

2023-06-14 16:47:35 +02:00

Please attach the EXR file.

Pedro A. commented

2023-06-14 16:51:14 +02:00

Sure.. done!

Brecht Van Lommel commented

2023-06-14 16:58:53 +02:00

Blender could do better here, but the way channels are stored in this files is odd.

Also in other viewers you can see that it is not recognizing a Ns render pass with xyz channels, but instead individual Nsx, Nsy and Nsz render passes. It would make more sense to name the channels Ns.x, Ns.y and Ns.z.

Blender could do better here, but the way channels are stored in this files is odd. Also in other viewers you can see that it is not recognizing a Ns render pass with xyz channels, but instead individual Nsx, Nsy and Nsz render passes. It would make more sense to name the channels `Ns.x`, `Ns.y` and `Ns.z`.

Brecht Van Lommel referenced this issue from a commit

2023-06-14 17:16:09 +02:00

Fix #108980: OpenEXR channels with unknown channel names fail to load

Brecht Van Lommel closed this issue

2023-06-14 17:17:04 +02:00

Blender Bot added

and removed

labels 2023-06-14 17:17:06 +02:00

Brecht Van Lommel referenced this issue

2023-06-14 17:18:20 +02:00

Blender LTS: Maintenance Task 3.3 #100749

Pedro A. commented

2023-06-14 17:18:49 +02:00

Blender could do better here, but the way channels are stored in this files is odd.

Also in other viewers you can see that it is not recognizing a Ns render pass with xyz channels, but instead individual Nsx, Nsy and Nsz render passes. It would make more sense to name the channels Ns.x, Ns.y and Ns.z.

Good point, Brecht. Thank you!

> Blender could do better here, but the way channels are stored in this files is odd. > > Also in other viewers you can see that it is not recognizing a Ns render pass with xyz channels, but instead individual Nsx, Nsy and Nsz render passes. It would make more sense to name the channels `Ns.x`, `Ns.y` and `Ns.z`. Good point, Brecht. Thank you!

Philipp Oeser referenced this issue from a commit

2023-06-15 15:06:28 +02:00

Fix #108980: OpenEXR channels with unknown channel names fail to load

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Layer.load_from_file() have some problems loading a Multi-layered EXR files #108980