Maniphest T54505

Difference in render
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Assigned To
Brecht Van Lommel (brecht)
Authored By
pistol ioan (pistoltoto)
Apr 3 2018, 12:51 PM
Tags
  • BF Blender
Subscribers
Brecht Van Lommel (brecht)
Christopher_Anderssarian
pistol ioan (pistoltoto)

Description

970gtx, i7, win 10

Broken version: Blender 2.79 31f2a67
Worked version : Blender 2.79b f4dc9f9d68b

Here I'm not sure if this is a bug or a change made on purpose, but I consider that because the final render is different and we are still on the same version I will consider as a bug.

As you can see from my renders the shading is a bit different.
I also attached the material on the file to test it by yourself.

The differences are very slightly so you need to slide the photos one after another.
You will see that one is brighter than another, the old version is not so bright.

test file.blend705 KBDownload

Related Objects

Mentioned Here
rB836a1ccf729a: Fix T53600: Cycles shader mixing issue with principled BSDF and zero weights.
rBdf1af9b3493b: Fix Cycles bug in RR termination, probability should never be > 1.0.
rB866be3423c61: Fix incorrect MIS with principled BSDF and specular roughness 0.
T54486: Render difference with big quad light and ray visibility
rBf4dc9f9d68bd: Fix T54360: FFMPEG bitrate not editable for all codecs
rB31f2a6755db5: PyAPI: Add PyC_Tuple_Pack_F64 utility

Event Timeline

pistol ioan (pistoltoto) created this task.Apr 3 2018, 12:51 PM
pistol ioan (pistoltoto) updated the task description.Apr 3 2018, 12:56 PM
Christopher_Anderssarian added subscribers: Brecht Van Lommel (brecht), Christopher_Anderssarian.Apr 3 2018, 1:15 PM

@Brecht Van Lommel (brecht)
Based solely off the images looks to be looks to be possibly related to T54486?

Brecht Van Lommel (brecht) changed the task status from Unknown Status to Unknown Status.Apr 3 2018, 2:22 PM
Brecht Van Lommel (brecht) claimed this task.

There were some bug fixes that change the look:
https://wiki.blender.org/index.php/Dev:Ref/Release_Notes/2.79/a#Render:_Cycles

For example rB836a1ccf72, rB866be3423c and rBdf1af9b349. For some scenes these subtle changes can be unwanted, for other scenes they are needed to make the scene render correctly at all. There's not a lot we can do to avoid such look changes when fixing bugs.