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Edge Slide: redo changes result if clamping was disabled in modal
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System Information
Operating system: Windows 10 64 bit
Graphics card: GTX 1060 6 gigabyte (The old one)

Blender Version
Broken: Not sure this has ever worked, I tried two versions of 2.8 as well as 2.79 and they both behave oddly, example file is a 2.8 file though.

Short description of error
Toggling "even" on and off in the operator panel after doing a clamped edge slide changes the result, it seems to give you the results you would have had the edge slide not been clamped at all.

Exact steps for others to reproduce the error
In the example file, there are two vertices selected. Edge slide them in the negative Y (away from the main cube), press C to clamp, and then slide them in the positive Y so they're beyond where they started and confirm. In the operator panel, turn "even" on and back off.



Event Timeline

Philipp Oeser (lichtwerk) triaged this task as Confirmed, Medium priority.

If you press C, you are actually turning clamp OFF (it is ON by default), this is why you can slide beyond the original extends of the rail edges.

Now for redo: this always seems to have clamp ON (need to check why this is)
Dont have to toggle even, changing the factor ever so slightly will also change the result as if the clamping was ON originally.
Turning clamping OFF will not make this works as expected either...

Philipp Oeser (lichtwerk) renamed this task from Enabling and disabling even in operator panel changes result to Edge Slide: redo changes result if clamping was disabled in modal.Jan 23 2019, 10:59 AM

Actually this has been reported before, see T45964