Weird Sub-division results when used in conjunction with creases #59646

New Issue

Alaska · 2018-12-20T00:33:04+01:00

Alaska commented

2018-12-20 00:33:04 +01:00

System Information:
CPU: Ryzen 5 2600
GPU: RX 570 4GB
OS: Windows 10 Home

Blender Version:
Broken: Blender 2.8 Beta c4ee77cde8

Short description of error:
Some weird snapping issues occur in Blender 2.8 with creases and the sub-division modifier that didn't occur in Blender 2.79.

Exact steps for others to reproduce the error:
Versions shown: Blender 2.8 Beta c4ee77cde8 & Blender 2.79
Sub-divison Snapping.mp4

**System Information:** CPU: Ryzen 5 2600 GPU: RX 570 4GB OS: Windows 10 Home **Blender Version:** Broken: Blender 2.8 Beta c4ee77cde8b0 **Short description of error:** Some weird snapping issues occur in Blender 2.8 with creases and the sub-division modifier that didn't occur in Blender 2.79. **Exact steps for others to reproduce the error:** Versions shown: Blender 2.8 Beta c4ee77cde8b0 & Blender 2.79 [Sub-divison Snapping.mp4](https://archive.blender.org/developer/F6010789/Sub-divison_Snapping.mp4)

Alaska commented

2018-12-20 00:33:04 +01:00

Added subscriber: @Alaska

Sergey Sharybin was assigned by Jacques Lucke

2018-12-20 12:30:02 +01:00

Valentin commented

2018-12-20 14:37:33 +01:00

Added subscriber: @Poulpator

Albert commented

2018-12-20 18:40:38 +01:00

Added subscriber: @wevon-2

Albert commented

2018-12-20 18:40:38 +01:00

Increasing the quality of subdivisions to 6 solves it.
If the performance does not get much worse I think that the quality parameter should always be at the maximum, or even be eliminated.

Increasing the quality of subdivisions to 6 solves it. If the performance does not get much worse I think that the quality parameter should always be at the maximum, or even be eliminated.

Alaska commented

2018-12-21 02:02:48 +01:00

In #59646#585692, @wevon-2 wrote:
Increasing the quality of subdivisions to 6 solves it.
If the performance does not get much worse I think that the quality parameter should always be at the maximum, or even be eliminated.

Not entirely, the plane still experiences issues at quality level 6.

> In #59646#585692, @wevon-2 wrote: > Increasing the quality of subdivisions to 6 solves it. > If the performance does not get much worse I think that the quality parameter should always be at the maximum, or even be eliminated. Not entirely, the plane still experiences issues at quality level 6.

Sergey Sharybin commented

2019-01-22 15:38:25 +01:00

Changed status from 'Open' to: 'Resolved'

Sergey Sharybin closed this issue

2019-01-22 15:38:25 +01:00

Sergey Sharybin commented

2019-01-22 15:38:25 +01:00

The behavior on the cube is not a bug. Sharper creases requires deeper mesh analysis, which happens when you increase quality. And as the tooltip suggests, higher quality means slower analysis, so we can't have it set to maximum level by default.

The issue with crease on plane is solved in a8902ab49a.

To thanks for the report, but all parts which we consider bug are solved.

The behavior on the cube is not a bug. Sharper creases requires deeper mesh analysis, which happens when you increase quality. And as the tooltip suggests, higher quality means slower analysis, so we can't have it set to maximum level by default. The issue with crease on plane is solved in a8902ab49a. To thanks for the report, but all parts which we consider bug are solved.

Sign in to join this conversation.

No Label

Download

What's New

Blender Studio

Manual

Developers Blog

Documentation

Benchmark

Blender Conference

Development Fund

One-time Donations

Weird Sub-division results when used in conjunction with creases #59646