bezier circle extrusion value is not consistent with actual mesh value #84538

New Issue

mike d boing · 2021-01-08T20:35:27+01:00

mike d boing commented

2021-01-08 20:35:27 +01:00

System Information
Operating system: win 10
Graphics card: Nvidia GTX 670

Blender Version
Broken: 2.91.0
Worked: (newest version of Blender that worked as expected) unable to check at this time

Short description of error
When i input an extrude value in the geometry tab of a Bezier circle, the mesh size value in the 3d viewport is not that value.

Exact steps for others to reproduce the error
Create a Bezier circle of any size , input values in the extrude window of the geometry tab. I do not use bevel objects for this type of work. At first the eight of the curve is doubled, as I can see it extrude from the center. That would make sense if it was indicated that it would do that. I have not seen any indications that the input would be half the output. Maybe a mention in the tooltips would help here. However, after several reformatting of the circle, the output is no longer consistent, especially if you add and remove vertices from the circle to make, as in my case, a conveyor belt. The input I have is 1.05 inches and the mesh is 1.375. inches

**System Information** Operating system: win 10 Graphics card: Nvidia GTX 670 **Blender Version** Broken: 2.91.0 Worked: (newest version of Blender that worked as expected) unable to check at this time **Short description of error** When i input an extrude value in the geometry tab of a Bezier circle, the mesh size value in the 3d viewport is not that value. **Exact steps for others to reproduce the error** Create a Bezier circle of any size , input values in the extrude window of the geometry tab. I do not use bevel objects for this type of work. At first the eight of the curve is doubled, as I can see it extrude from the center. That would make sense if it was indicated that it would do that. I have not seen any indications that the input would be half the output. Maybe a mention in the tooltips would help here. However, after several reformatting of the circle, the output is no longer consistent, especially if you add and remove vertices from the circle to make, as in my case, a conveyor belt. The input I have is 1.05 inches and the mesh is 1.375. inches

mike d boing commented

2021-01-08 20:35:27 +01:00

Added subscriber: @mikedboing

mike d boing commented

2021-01-08 22:05:29 +01:00

I found the source of the problem, its not a bug, but it did bug the heck out of me. The problem was the vertices' mean radius was set at .664 instead of .5 (i think that would be the default value?) Once the value was reset, the extrusion and viewport values are consistent.

Sorry for the inconvenience.

I found the source of the problem, its not a bug, but it did bug the heck out of me. The problem was the vertices' mean radius was set at .664 instead of .5 (i think that would be the default value?) Once the value was reset, the extrusion and viewport values are consistent. Sorry for the inconvenience.

Hans Goudey commented

2021-01-08 22:08:42 +01:00

Added subscriber: @HooglyBoogly

Hans Goudey commented

2021-01-08 22:08:42 +01:00

I'll go ahead and close this report then. Thanks anyway.

The default "bevel depth" value is zero, so I'm not sure what happened for you.

I'll go ahead and close this report then. Thanks anyway. The default "bevel depth" value is zero, so I'm not sure what happened for you.

Rahul Chaudhary commented

2021-01-09 04:20:49 +01:00

Added subscriber: @RC12

Rahul Chaudhary commented

2021-01-09 04:20:49 +01:00

The default mean radius is set to 1, but if you scale the curve and apply the scale, the mean radius stays the same as the previous scale value. I think this behavior is intentional, so the curve has the same depth you see after applying scales, resetting the mean radius to 1 after applying the scale would make it jump back to the global scale which would be inconvenient if you are working with on a very small scale
mean radius.mp4

The default mean radius is set to 1, but if you scale the curve and apply the scale, the mean radius stays the same as the previous scale value. I think this behavior is intentional, so the curve has the same depth you see after applying scales, resetting the mean radius to 1 after applying the scale would make it jump back to the global scale which would be inconvenient if you are working with on a very small scale [mean radius.mp4](https://archive.blender.org/developer/F9556685/mean_radius.mp4)

Robert Guetzkow commented

2021-01-09 11:22:19 +01:00

Added subscriber: @rjg

Robert Guetzkow commented

2021-01-09 11:22:19 +01:00

Changed status from 'Needs Triage' to: 'Archived'

Robert Guetzkow closed this issue

2021-01-09 11:22:19 +01:00

Robert Guetzkow commented

2021-01-09 11:22:19 +01:00

I'm closing the ticket since the issue seems to be resolved and this doesn't appear to be a bug.

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bezier circle extrusion value is not consistent with actual mesh value #84538