Texture Node editor --->creating image , then use created image as input node in texture node editor #61075

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opened 2019-01-31 19:16:43 +01:00 by ward · 7 comments

win 10
amd radeon
intel i5

Blender 2.8
3d8cbb534f

First of all ,this is specifically about the "texture node editor set to brush for creating an image , then using the created image as an image input in the (brush ) node editor , and again paiting in the SAME image ...
It totally makes sens that blender crashes because it is trying to create an image where the brush is that image itself , thus creating a feedback loop

Steps to reproduce crash

  • Create plane
  • Go to the shader editor and create an image texture node
  • Create a new file , let's call this one ''crash'' and route it the shader's colour input
  • Go to the 'texture node editor and from the dropdown select 'brush''
  • Click the 'new tab' and enable úse nodes , by default we are presented with the checker pattern
  • go to the image editor and draw something , we are presented with a checker pattern
  • Now go back to the texture node editor'' and select ímage 'from the input nodes and route it to the tout
  • Select çrash 'as image
  • Now paint something in the image editor

Crash

In the provided file , everything is already set up , al you have to do is paint in the image editor , and then route the module labeled çrash'to the output of the texture node editor feedback crash .blend

win 10 amd radeon intel i5 Blender 2.8 3d8cbb534f82 First of all ,this is specifically about the "texture node editor set to brush for creating an image , then using the created image as an image input in the (brush ) node editor , and again paiting in the SAME image ... It totally makes sens that blender crashes because it is trying to create an image where the brush is that image itself , thus creating a feedback loop Steps to reproduce crash - Create plane - Go to the shader editor and create an image texture node - Create a new file , let's call this one ''crash'' and route it the shader's colour input - Go to the 'texture node editor and from the dropdown select 'brush'' - Click the 'new tab' and enable úse nodes , by default we are presented with the checker pattern - go to the image editor and draw something , we are presented with a checker pattern - Now go back to the texture node editor'' and select ímage 'from the input nodes and route it to the tout - Select çrash 'as image - Now paint something in the image editor Crash In the provided file , everything is already set up , al you have to do is paint in the image editor , and then route the module labeled çrash'to the output of the texture node editor [feedback crash .blend](https://archive.blender.org/developer/F6467261/feedback_crash_.blend)
Author

Added subscriber: @gentleclockdivider

Added subscriber: @gentleclockdivider
Author

On the other hand , doing the exact same thing but without using the''texture node editor , using the image '' in proces'' as a brush, does not result in crashing

On the other hand , doing the exact same thing but without using the''texture node editor , using the image '' in proces'' as a brush, does not result in crashing
Author

Just checked in blender 2.79 , no crashing

Also in order to reproduce the bug , one doesn't need to assign a material at all

  • just creating a new image
  • Then using that image as a brush in the "'texture brush node editor 'is enough
Just checked in blender 2.79 , no crashing Also in order to reproduce the bug , one doesn't need to assign a material at all - just creating a new image - Then using that image as a brush in the "'texture brush node editor 'is enough

Added subscribers: @brecht, @ZedDB

Added subscribers: @brecht, @ZedDB
Brecht Van Lommel was assigned by Sebastian Parborg 2019-02-01 11:37:36 +01:00

It doesn't crash for me, but I do get artifacts on the texture (which is not unexpected). And I get long freezes.

@brecht I'm guessing we do not what this to happen in the first place (painting onto a texture that you are using as a brush at the same time).

It doesn't crash for me, but I do get artifacts on the texture (which is not unexpected). And I get long freezes. @brecht I'm guessing we do not what this to happen in the first place (painting onto a texture that you are using as a brush at the same time).
Brecht Van Lommel was unassigned by Dalai Felinto 2019-12-23 16:35:16 +01:00

Added subscriber: @iss

Added subscriber: @iss

It should be enough to just "connect canvas to brush" in texture node editor, But I managed to get crash only when I modified Layout workspace. In Shading workspace I got no crash.

It should be enough to just "connect canvas to brush" in texture node editor, But I managed to get crash only when I modified Layout workspace. In Shading workspace I got no crash.
Philipp Oeser removed the
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Reference: blender/blender#61075
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