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Maniphest T46221

Mixed shader Glass and Transparent displayed as solid in render, prerender as wished.
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Description

System Information
Windows 8.1 64 Bit with Nvidia GTX 960, Windows 7 SP1 64 Bit with Intel GMA HD 4500 MHD

Blender Version
Broken: Blender v2.75a c27589e on Windows 8.1
Blender v2.76RC c586e30 on Windows 7 SP1
Worked: Not known.

Short description of error
Different render output.

Exact steps for others to reproduce the error
1st add a plane
2nd set material to mix shader
3rd 1st shader "Glass BSDF", second Transparent BSDF.
4th hit F12 and render it in CUDA and save image
5th set viewport shading to "render". Compare both images.
Can't find a work around. Google does not help me. Happens with glass BSDF. Two different computers, same error.
Sample

- Rendered with F12

- Prerender

Related Objects

Event Timeline

Soe (canuckleaf) created this task.Sep 23 2015, 10:14 AM
Soe (canuckleaf) raised the priority of this task from to 90.
Soe (canuckleaf) updated the task description. (Show Details)
Soe (canuckleaf) added a project: BF Blender.
Soe (canuckleaf) edited a custom field.
Soe (canuckleaf) added a subscriber: Soe (canuckleaf).
Sergey Sharybin (sergey) lowered the priority of this task from 90 to 30.Sep 23 2015, 10:32 AM
Sergey Sharybin (sergey) added a subscriber: Sergey Sharybin (sergey).

It's really important to provide simple .blend which exactly demonstrates the issue. it's not always clear from steps state of all settings which might have affect on render results. For example, are you using any post-pro, if it's transparent film or not, what's the settings of world and so on.

So please provide sample .blend file which demonstrates the issue.

Sergey Sharybin (sergey) added a project: Cycles.Sep 23 2015, 10:33 AM
ronan ducluzeau (zeauro) added a subscriber: ronan ducluzeau (zeauro).Sep 23 2015, 10:35 AM

Result could be differrent simply because preview is using less samples.

Soe (canuckleaf) added a comment.Sep 23 2015, 11:47 AM
In T46221#336847, @ronan ducluzeau (zeauro) wrote:

Result could be differrent simply because preview is using less samples.

In most cases, the Output there is similar to the actual render, not on this project. Images are not in the Film editor. I've tried to recreate the szene, it works... I can't reproduce the error. So, I will upload the project file instead.

outside_model_finalarrowangleSLIDES1water1blendwaves1111.blend8 MBDownload

Brecht Van Lommel (brecht) changed the task status from Unknown Status to Archived.Sep 23 2015, 2:43 PM
Brecht Van Lommel (brecht) claimed this task.
Brecht Van Lommel (brecht) added a subscriber: Brecht Van Lommel (brecht).

Check the outliner, Plane.003 > Cube.010 > Plane.002 is visible in the render but not in the viewport.

Soe (canuckleaf) added a comment.Sep 23 2015, 3:10 PM
In T46221#336910, @Brecht Van Lommel (brecht) wrote:

Check the outliner, Plane.003 > Cube.010 > Plane.002 is visible in the render but not in the viewport.

Sorry for wasting your time. There is a large grey plane, I don't get behind it... I only see it in the final render, but not in prerender. Disabled water, the A/C looks lonely in the viewport.

Soe (canuckleaf) added a comment.Sep 23 2015, 5:33 PM

I do not understand this. I've disabled all planes, but the grey plane is still there!

Soe (canuckleaf) added a comment.Sep 23 2015, 5:44 PM

Gotcha... These are breadcrumbs.... Plane.002 was still there... Case closed on behalf of me... The bug was user.. Time to take a break...

Thank you for pointing out...