Maniphest T68703

Glass shader turns mirror after extrude
Closed, Archived
Actions

Assigned To
None
Authored By
Yuri (YuriP)
Aug 15 2019, 6:22 PM
Tags
  • BF Blender
Subscribers
Marius (cgmarius)
Yuri (YuriP)

Description

System Information
Operating system: WIndows 10
Graphics card: Nvidia GTX 770

Blender Version
Broken: 2.80.75

Glass shader turns mirror after extrude. Look at images below

Exact steps for others to reproduce the error
Create a plane and assign to it standart glass material (in my case it's principled bsdf with transmition = 1 and roughness = 0) (pic. 1), then extrude the plane, now it turns mirror (pic.2). Even if you delete extruded faces it's still a mirror (pic.3)

Event Timeline

Yuri (YuriP) created this task.Aug 15 2019, 6:22 PM
Yuri (YuriP) updated the task description.Aug 17 2019, 9:34 AM
Marius (cgmarius) added a subscriber: Marius (cgmarius).Aug 17 2019, 10:08 AM

The normals are probably inverted, try selecting all vertices of the mesh in edit mode and go to Mesh->Normals->Flip.

Yuri (YuriP) added a comment.EditedAug 19 2019, 10:05 AM
In T68703#754928, @Marius (cgmarius) wrote:

The normals are probably inverted, try selecting all vertices of the mesh in edit mode and go to Mesh->Normals->Flip.

Oh, thanks, how could I not know about this for such a long time?
P.S. I think, Blender needs to display normal orientation by default (like in 2.79 or backface culling turn on) to prevent this type of mistakes.

Yuri (YuriP) changed the task status from Unknown Status to Archived.Aug 19 2019, 10:16 AM
Yuri (YuriP) changed the visibility from "Public (No Login Required)" to "Subscribers".