Cycles Baking result does not show up #40709

New Issue

Erich Brutus · 2014-06-19T18:29:49+02:00

Erich Brutus commented

2014-06-19 18:29:49 +02:00

System Information
Operating system and graphics card

Win 7 premium
GTX 670

Blender Version
Broken: 2.71 a19c1be

Short description of error

Add any texture to the material, create empty texture and make it active in the node editor, press bake, no errors but in the UV/Image editor it doesn't show the proper result, just a blank texture with alpha of 0

CubeBakeFail.blend

**System Information** Operating system and graphics card Win 7 premium GTX 670 **Blender Version** Broken: 2.71 a19c1be **Short description of error** Add any texture to the material, create empty texture and make it active in the node editor, press bake, no errors but in the UV/Image editor it doesn't show the proper result, just a blank texture with alpha of 0 [CubeBakeFail.blend](https://archive.blender.org/developer/F94760/CubeBakeFail.blend)

Erich Brutus commented

2014-06-19 18:29:49 +02:00

Changed status to: 'Open'

Erich Brutus commented

2014-06-19 18:29:49 +02:00

Added subscriber: @ErichBrutus

Dalai Felinto was assigned by Bastien Montagne

2014-06-19 19:41:53 +02:00

Bastien Montagne commented

2014-06-19 19:41:53 +02:00

Added subscriber: @mont29

Bastien Montagne commented

2014-06-19 19:41:53 +02:00

Dalai, I’ll let you check on this one. :)

Dalai Felinto commented

2014-06-19 20:50:26 +02:00

@ErichBrutus If I try to bake your file I get: "Error: No active image found in material "Material" (0) for object "Cube""
Anyways, after initializing the image I'm getting the following error:

Assertion failed: (index >= 0 && index < width), function fetch, file blender/intern/cycles/kernel/./kernel_compat_cpu.h, line 42
The full backtrace log is P85

Your file ready to reproduce that is: CubeBakeFail2.blend

That said, there is something wrong with your file. How did you create it?
Here a file created from scratch that pretty much mimics what you were trying to do and it works: CubeBakeFail3.blend

[I can try with 2.71rc2 later, but for now I tested it with d43ba1b3 since it includes some fixes that were not merged into the 2.71rc branch yet]

@ErichBrutus If I try to bake your file I get: "Error: No active image found in material "Material" (0) for object "Cube"" Anyways, after initializing the image I'm getting the following error: Assertion failed: (index >= 0 && index < width), function fetch, file blender/intern/cycles/kernel/./kernel_compat_cpu.h, line 42 The full backtrace log is [P85](https://archive.blender.org/developer/P85.txt) Your file ready to reproduce that is: [CubeBakeFail2.blend](https://archive.blender.org/developer/F94775/CubeBakeFail2.blend) That said, there is something wrong with your file. How did you create it? Here a file created from scratch that pretty much mimics what you were trying to do and it works: [CubeBakeFail3.blend](https://archive.blender.org/developer/F94778/CubeBakeFail3.blend) [I can try with 2.71rc2 later, but for now I tested it with d43ba1b3 since it includes some fixes that were not merged into the 2.71rc branch yet]

Erich Brutus commented

2014-06-19 22:31:11 +02:00

Well yes, it does say "...No active image found in material...", I didn't pack the empty image with the Blend file, just press new.

If I make it from scratch, then yes, it does work, it's just that I had a textured model in there previously, I deleted it and made it as simple as possible in order to figure out what was causing the error. Needless to say I couldn't figure it out. In a word, I can't reproduce it when opening a fresh file, I guess it will remain a mystery then.

Well yes, it does say "...No active image found in material...", I didn't pack the empty image with the Blend file, just press new. If I make it from scratch, then yes, it does work, it's just that I had a textured model in there previously, I deleted it and made it as simple as possible in order to figure out what was causing the error. Needless to say I couldn't figure it out. In a word, I can't reproduce it when opening a fresh file, I guess it will remain a mystery then.

Dalai Felinto commented

2014-06-21 18:54:56 +02:00

@ErichBrutus did you created this file with blender from inbetween releases? (meaning after 2.70 but before 2.71rc)?

Brecht Van Lommel commented

2014-06-21 19:56:56 +02:00

Added subscriber: @brecht

Brecht Van Lommel commented

2014-06-21 19:56:56 +02:00

The problem in this file is in the render layer, where it has exclude layers set and the object is excluded.

Do we want render layers to influence baking? I guess options like the material override, use hair and even these exclude layers could be useful for baking. But there should at least be a warning message if the object is excluded.

The problem in this file is in the render layer, where it has exclude layers set and the object is excluded. Do we want render layers to influence baking? I guess options like the material override, use hair and even these exclude layers could be useful for baking. But there should at least be a warning message if the object is excluded.

Dalai Felinto commented

2014-06-22 20:56:47 +02:00

Do we want render layers to influence baking? I guess options like the material override, use hair and even these exclude layers could be useful for baking.

On the other hand we can only bake one layer, so for baking we assume "render_use_single_layer" to always be True. I'm not sure if this would be clear to the user.

> Do we want render layers to influence baking? I guess options like the material override, use hair and even these exclude layers could be useful for baking. On the other hand we can only bake one layer, so for baking we assume "render_use_single_layer" to always be True. I'm not sure if this would be clear to the user.

Brecht Van Lommel commented

2014-06-22 21:09:23 +02:00

Right, well it seems reasonable to me to disable render layer settings for baking. It's not that useful.