image texture set to view node isn't working. #76352

New Issue

michael campbell · 2020-05-02T23:54:59+02:00

michael campbell commented

2020-05-02 23:54:59 +02:00

System Information
Operating system: Windows-10-10.0.17763-SP0 64 Bits
Graphics card: GeForce GTX 1070/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 442.92

Blender Version
Broken: version: 2.90 (sub 0), branch: master, commit date: 2020-05-01 21:55, hash: 83304e4c22
Worked: (newest version of Blender that worked as expected)

Short description of error
image texture set to view node isn't working.

Exact steps for others to reproduce the error

See below:

2020-05-02 22-52-14.mp4

**System Information** Operating system: Windows-10-10.0.17763-SP0 64 Bits Graphics card: GeForce GTX 1070/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 442.92 **Blender Version** Broken: version: 2.90 (sub 0), branch: master, commit date: 2020-05-01 21:55, hash: `83304e4c22` Worked: (newest version of Blender that worked as expected) **Short description of error** image texture set to view node isn't working. **Exact steps for others to reproduce the error** See below: [2020-05-02 22-52-14.mp4](https://archive.blender.org/developer/F8508206/2020-05-02_22-52-14.mp4)

michael campbell commented

2020-05-02 23:54:59 +02:00

Added subscriber: @3di

Richard Antalik commented

2020-05-04 11:59:20 +02:00

Added subscriber: @iss

Richard Antalik commented

2020-05-04 11:59:20 +02:00

This looks like a workaround to view result in image editor https://docs.blender.org/manual/en/latest/compositing/types/output/viewer.html#using-the-image-editor
It is probably not supported to use it in other ways even if it look it can be. Though I would have to look into code to be completely sure.

This looks like a workaround to view result in image editor https://docs.blender.org/manual/en/latest/compositing/types/output/viewer.html#using-the-image-editor It is probably not supported to use it in other ways even if it look it can be. Though I would have to look into code to be completely sure.

Philipp Oeser commented

2020-05-11 09:35:13 +02:00

Added subscribers: @Sergey, @Jeroen-Bakker, @lichtwerk

Philipp Oeser commented

2020-05-11 09:35:13 +02:00

This reminds me of #73182 (Exclude 'Render Result' and 'Viewer' image types in the dropdown in certain contexts [Shader Editor, Compositor, UV Editor...]).

It would be nice to have [if it were safe], but wouldnt this also run into recursion?
If you use the Viewer to feed into the shader that would update your Render result (which then would update the Viewer and shader again?)?

@Sergey, @Jeroen-Bakker: same as in #73182: should we exlude IMA_TYPE_COMPOSITE and IMA_TYPE_R_RESULT from the Image Browsing in the Shader Editor if this known to not work? -- possible enhancement... )

This reminds me of #73182 (Exclude 'Render Result' and 'Viewer' image types in the dropdown in certain contexts [Shader Editor, Compositor, UV Editor...]). It would be nice to have [if it were safe], but wouldnt this also run into recursion? If you use the Viewer to feed into the shader that would update your Render result (which then would update the `Viewer` and shader again?)? @Sergey, @Jeroen-Bakker: same as in #73182: should we exlude `IMA_TYPE_COMPOSITE` and `IMA_TYPE_R_RESULT` from the Image Browsing in the Shader Editor if this known to not work? -- possible enhancement... )

Philipp Oeser commented

2020-05-11 09:46:44 +02:00

Seems like this and #73182 are really the same issues, so will merge these reports and make a TODO out of this (exclude Render Result & Viewer types from the image dropdown if appropriate...)

Philipp Oeser commented

2020-05-11 09:47:04 +02:00

Closed as duplicate of #73182

Philipp Oeser closed this issue

2020-05-11 09:47:04 +02:00

michael campbell commented

2020-05-11 13:42:33 +02:00

recursion could be avoided in some way, similar to how houdini does it. I'm not sure how they do it though. Guessing they run all compositors that are used in textures etc before the render. Maybe only disallow the use of comp outputs in textures if the compositor has a render layers node, as these would cause a recursion. Anything that only has sources such as images or movies should never cause recursion, so would be safe.

michael campbell commented

2020-05-11 14:06:23 +02:00

The idea in the above case was to be able to edit a video in blender's video editor, and then output the edited version onto a plane, so that the edited video could be more quickly rendered as a new video with an orthographic camera using EEVEE gpu rather than a slow CPU. A poor mans workaround to getting GPU rendering for the video editor :)

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image texture set to view node isn't working. #76352