Shader Image Mapping Issue #88410

New Issue

Gary · 2021-05-19T22:18:00+02:00

Gary commented

2021-05-19 22:18:00 +02:00

System Information
Operating system: Mac OSX High Sierra
Graphics card: NVIDiA GeForce

Blender Version
Broken: (example: 2.92 Master 02948a2cab
Worked: N/A

Short description of error
It seems the mapped image is not applying to an object that's linked by Object Data

Exact steps for others to reproduce the error
Based on the default startup or an attached .blend file (as simple as possible).

repro2.blend

In this file, just going in and out of editmode causes the the (rendered) UVs to not be consistent (they appear fine in the UV Editor):

Original report:
modular.blend

Look at the image reference in the shader for the second to last vehicle. All other vehicles with similar bodies are linked and are following the map except the second to last object. After linking the body of that vehicle, the object appears to follow the map until you render the image.

**System Information** Operating system: Mac OSX High Sierra Graphics card: NVIDiA GeForce **Blender Version** Broken: (example: 2.92 Master 02948a2cab44 Worked: N/A **Short description of error** It seems the mapped image is not applying to an object that's linked by Object Data **Exact steps for others to reproduce the error** Based on the default startup or an attached .blend file (as simple as possible). [repro2.blend](https://archive.blender.org/developer/F10223198/repro2.blend) In this file, just going in and out of editmode causes the the (rendered) UVs to not be consistent (they appear fine in the UV Editor): ![image.png](https://archive.blender.org/developer/F10223188/image.png) ![image.png](https://archive.blender.org/developer/F10223190/image.png) ![image.png](https://archive.blender.org/developer/F10223193/image.png) --- Original report: [modular.blend](https://archive.blender.org/developer/F10127867/modular.blend) Look at the image reference in the shader for the second to last vehicle. All other vehicles with similar bodies are linked and are following the map except the second to last object. After linking the body of that vehicle, the object appears to follow the map until you render the image.

Gary commented

2021-05-19 22:18:00 +02:00

Added subscriber: @Gary-1

Philipp Oeser commented

2021-05-21 12:19:24 +02:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2021-05-21 12:19:24 +02:00

Changed status from 'Needs Triage' to: 'Needs User Info'

Philipp Oeser commented

2021-05-21 12:19:24 +02:00

First of all: the image is missing. Please pack that into the file an reupload the .blend file (or attach the image here)

Having said that, the reproduction steps are not entirely clear to me:

should we already see the issue when opening that file? Does this not show the texture? Is it pink?

All other vehicles with similar bodies are linked

That means their meshes have multiple users, right? Just making sure we are talking about the same things

After linking the body of that vehicle, the object appears to follow the map until you render the image.

What exatly does "linking" mean here? should the Cube.001 share its mesh with another object? which one? Please be more specific.
And then after rendering what happens? Does it display pink?

First of all: the image is missing. Please pack that into the file an reupload the .blend file (or attach the image here) Having said that, the reproduction steps are not entirely clear to me: - should we already see the issue when opening that file? Does this not show the texture? Is it pink? > All other vehicles with similar bodies are linked That means their meshes have multiple users, right? Just making sure we are talking about the same things > After linking the body of that vehicle, the object appears to follow the map until you render the image. What exatly does "linking" mean here? should the `Cube.001` share its mesh with another object? which one? Please be more specific. And then after rendering what happens? Does it display pink?

Gary commented

2021-06-01 03:23:12 +02:00

First of all: the image is missing. Please pack that into the file an reupload the .blend file (or attach the image here)

should we already see the issue when opening that file? Does this not show the texture? Is it pink?

The texture shows the whole texture image. Take a look at the two front wheels of the second to last vehicle from the left in the screenshot.

Here's a screenshot.

What exatly does "linking" mean here? should the Cube.001 share its mesh with another object? which one? Please be more specific.
And then after rendering what happens? Does it display pink?

All the wheels are linked by material so they should all be showing the same mesh. Interestingly the wheel in question renders fine.

First of all: the image is missing. Please pack that into the file an reupload the .blend file (or attach the image here) ![14_TA_BCC+texturing+_colour+grid.png](https://archive.blender.org/developer/F10151637/14_TA_BCC_texturing__colour_grid.png) should we already see the issue when opening that file? Does this not show the texture? Is it pink? The texture shows the whole texture image. Take a look at the two front wheels of the second to last vehicle from the left in the screenshot. Here's a screenshot. ![Screen Shot 2021-05-31 at 9.19.04 PM.png](https://archive.blender.org/developer/F10151639/Screen_Shot_2021-05-31_at_9.19.04_PM.png) What exatly does "linking" mean here? should the Cube.001 share its mesh with another object? which one? Please be more specific. And then after rendering what happens? Does it display pink? All the wheels are linked by material so they should all be showing the same mesh. Interestingly the wheel in question renders fine.

Philipp Oeser commented

2021-06-01 07:49:16 +02:00

Changed status from 'Needs User Info' to: 'Needs Triage'

Philipp Oeser commented

2021-07-13 15:12:08 +02:00

Changed status from 'Needs Triage' to: 'Confirmed'

Philipp Oeser commented

2021-07-13 15:12:08 +02:00

Hm, can actually reproduce (sorry this has been lying around for so long)

repro2.blend

In this file, just going in and out of editmode causes the the (rendered) UVs to not be consistent (they appear fine in the UV Editor):

Hm, can actually reproduce (sorry this has been lying around for so long) [repro2.blend](https://archive.blender.org/developer/F10223198/repro2.blend) In this file, just going in and out of editmode causes the the (rendered) UVs to not be consistent (they appear fine in the UV Editor): ![image.png](https://archive.blender.org/developer/F10223188/image.png) ![image.png](https://archive.blender.org/developer/F10223190/image.png) ![image.png](https://archive.blender.org/developer/F10223193/image.png)

Philipp Oeser removed the

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Shader Image Mapping Issue #88410