Extrude Edge Along Axis is not clearly visible in Blender 2.80 #62088

New Issue

Yolao Heinz · 2019-03-01T15:43:27+01:00

Yolao Heinz commented

2019-03-01 15:43:27 +01:00

System Information
Operating system:
Graphics card:

Windows 7
GeForce GTX 650Ti

Blender Version
blender-2.80-b4db7d80f18b-win64

Short description of error

In Blender 2.80 if you have just an edge and want to extrude that edge on side orthographic view along an axis, what you are extruding is not clearly visible. In Blender 2.79 i just have to scroll the mouse to zoom in and from that moment, even if i zoom out, the extrusion along axis will be clearly visible.

Exact steps for others to reproduce the error
Just extrude an edge in side orthographic along an axis and the edge being extrude will not be clearly visible even if you zoom in.

**System Information** Operating system: Graphics card: Windows 7 GeForce GTX 650Ti **Blender Version** blender-2.80-b4db7d80f18b-win64 **Short description of error** In Blender 2.80 if you have just an edge and want to extrude that edge on side orthographic view along an axis, what you are extruding is not clearly visible. In Blender 2.79 i just have to scroll the mouse to zoom in and from that moment, even if i zoom out, the extrusion along axis will be clearly visible. **Exact steps for others to reproduce the error** Just extrude an edge in side orthographic along an axis and the edge being extrude will not be clearly visible even if you zoom in.

Yolao Heinz commented

2019-03-01 15:43:27 +01:00

Added subscriber: @Yolao

Yolao Heinz commented

2019-03-01 15:45:51 +01:00

Here is an screen shot of Blender 2.80 of an edge being extruded.

And here is from Blender 2.79 after i zoom in then zoom out. You can see that the edge being extruded is clearly visible.

Here is an screen shot of Blender 2.80 of an edge being extruded. ![Blender_2_80_Extrude_Along_Axis.jpg](https://archive.blender.org/developer/F6736313/Blender_2_80_Extrude_Along_Axis.jpg) And here is from Blender 2.79 after i zoom in then zoom out. You can see that the edge being extruded is clearly visible. ![Blender_2_79_Extrude_Along_Axis.jpg](https://archive.blender.org/developer/F6736319/Blender_2_79_Extrude_Along_Axis.jpg)

Clément Foucault was assigned by Sebastian Parborg

2019-03-02 15:10:40 +01:00

Clément Foucault commented

2019-07-08 01:11:10 +02:00

OK this is the combination of 3 problems.

The edit wires are not writting to depth in solid mode (to avoid aliasing artifacts).
The edit wires are writting to a separate depth buffer when in wireframe mode. This buffer and the scene buffer are used to blend the wires based on the occlusion (the new Xray effect). Thus we can't write the depth to the scene buffer because it's used as input. Merging the depths would require another fullscreen pass which is costly.
The depth test is disabled by default for gizmos (easilly fixable)

Not quite sure how we can solve this efficiently without breaking the look.

OK this is the combination of 3 problems. - The edit wires are not writting to depth in solid mode (to avoid aliasing artifacts). - The edit wires are writting to a separate depth buffer when in wireframe mode. This buffer and the scene buffer are used to blend the wires based on the occlusion (the new Xray effect). Thus we can't write the depth to the scene buffer because it's used as input. Merging the depths would require another fullscreen pass which is costly. - The depth test is disabled by default for gizmos (easilly fixable) Not quite sure how we can solve this efficiently without breaking the look.

Clément Foucault was unassigned by Dalai Felinto

2019-12-23 16:35:01 +01:00

Dalai Felinto commented

2019-12-23 16:35:01 +01:00

Added subscriber: @fclem

Philipp Oeser removed the

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Extrude Edge Along Axis is not clearly visible in Blender 2.80 #62088