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Subdivision Creasing Unresponsive on 0.55-0.99 range
Open, Needs Triage by DeveloperPublic


System Information
Operating system: Windows-10-10.0.17134 64 Bits
Graphics card: GeForce GTX 770/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 431.36

Blender Version
Broken: version: 2.81 (sub 1), branch: master, commit date: 2019-08-03 10:22, hash: rB5e5cf9ea9f7b
(Also broken in 2.8 release version)
Worked: 2.79b

Short description of error
When using Edge Creasing and Subdivision Surface modifier the result is inconsistent for .55-.99 values. For 0-.55 the mesh updates gradually as one would expect. However, after that inserting .6 .7 .8 .9 no visual change can be observed. At value of 1 the mesh snaps to the final creasing. (which is considerably sharper than the .55)

Exact steps for others to reproduce the error
-Select the default cube.
-Add a subdivision surface modifier
-Go to edit mode and select single edge (or all edges)
-Press N to open tab and go to edge data to scrub Crease value
-Observe how 0-.55 change is linear but after that nothing really happens before 1.0



Event Timeline