Cycles shows 16-bit PNG Textures as "missing(magenta)" #49157

New Issue

Timm · 2016-08-25T02:23:57+02:00

Timm commented

2016-08-25 02:23:57 +02:00

System Information
Win7 x64 Ultimate
MSI GTX970 4G

Blender Version
across multiple Blender Versions (also on the actual Blender.org Build 2.77a)

Short description of error
16bit Png-Textures are shown as missing (magenta) after switching from "Solid" to "Rendered" Viewport Shading.
After reconnecting the Nodes in "rendered"-mode it works till i switch between "solid" and "rendered".
Exchange the 16-bit textures with 8-bit ones and everything works fine.

Update: It also works with only a 8-bit normal texture and the rest of the textures as 16-bit png's.

Exact steps for others to reproduce the error
Made a long Thread with Screenshots at http://blender.stackexchange.com/questions/61442/updated-cycles-show-missing-texture-magenta-until-i-reconnect-the-material/61563#61563
Cycles_Texture_Problem_16bit_tex.blend

**System Information** Win7 x64 Ultimate MSI GTX970 4G **Blender Version** across multiple Blender Versions (also on the actual Blender.org Build 2.77a) **Short description of error** 16bit Png-Textures are shown as missing (magenta) after switching from "Solid" to "Rendered" Viewport Shading. After reconnecting the Nodes in "rendered"-mode it works till i switch between "solid" and "rendered". Exchange the 16-bit textures with 8-bit ones and everything works fine. Update: It also works with only a 8-bit normal texture and the rest of the textures as 16-bit png's. **Exact steps for others to reproduce the error** Made a long Thread with Screenshots at http://blender.stackexchange.com/questions/61442/updated-cycles-show-missing-texture-magenta-until-i-reconnect-the-material/61563#61563 [Cycles_Texture_Problem_16bit_tex.blend](https://archive.blender.org/developer/F342871/Cycles_Texture_Problem_16bit_tex.blend)

Timm self-assigned this 2016-08-25 02:23:57 +02:00

Timm commented

2016-08-25 02:23:57 +02:00

Changed status to: 'Open'

Timm commented

2016-08-25 02:23:57 +02:00

Added subscriber: @TimmSchwarze

Timm removed their assignment 2016-08-25 03:17:26 +02:00

Sergey Sharybin commented

2016-08-25 09:51:44 +02:00

Added subscriber: @Sergey

Sergey Sharybin commented

2016-08-25 09:51:44 +02:00

Some questions:

Does it only happen on GPU or also happens on CPU rendering?
Are there any error messages in the console?
Does it happen with latest builds from buildbot ?

Some questions: - Does it only happen on GPU or also happens on CPU rendering? - Are there any error messages in the console? - Does it happen with latest builds from [buildbot ](https://builder.blender.org/download/)?

Wolfgang Faehnle commented

2016-08-25 13:55:09 +02:00

Added subscriber: @mib2berlin

Wolfgang Faehnle commented

2016-08-25 13:55:09 +02:00

Hi, checked the file and you use a complex shader group.
Your shader does work on CPU.
It work on master/buildbot, Sergey gave link already.

Hi, checked the file and you use a complex shader group. Your shader does work on CPU. It work on master/buildbot, Sergey gave link already.

Timm commented

2016-08-25 15:48:16 +02:00

Hi, thanks for the fast response...
As Wolfgang Faehnle said it works on CPU amd buildbot version.
The problem seems only to appear on GPU rendering on non-buildbot versions.

Console Message is:

"ImageManager:: add_image: float image limit reached 5, skipping 'Beispiel_Diffuse.png@0'

Hi, thanks for the fast response... As Wolfgang Faehnle said it works on CPU amd buildbot version. The problem seems only to appear on GPU rendering on non-buildbot versions. Console Message is: "ImageManager:: add_image: float image limit reached 5, skipping 'Beispiel_Diffuse.png@0'

Thomas Dinges commented

2016-08-27 23:32:49 +02:00

Added subscriber: @ThomasDinges

Thomas Dinges commented

2016-08-27 23:32:49 +02:00

Changed status from 'Open' to: 'Resolved'

Thomas Dinges closed this issue

2016-08-27 23:32:49 +02:00

Thomas Dinges self-assigned this 2016-08-27 23:32:49 +02:00

Thomas Dinges commented

2016-08-27 23:32:49 +02:00

Older Blender versions had a limit of 5 float (16 or 32bit) textures, as the error message says. This has been fixed. :)

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Cycles shows 16-bit PNG Textures as "missing(magenta)" #49157