Texture paint in the 3d View will crash, if you not check "Clamp Overlap" in the Bevel modifier #48202

System Information
windows 7 64 bit sp1

Blender Version
Broken: 2.77a abf6f08
Worked: (optional)

If you paint texture in the 3d view and don't check the "Clamp overlap" in the bevel modifier will make blender use cpu 100%, than crash your computer. it's happen by sometimes, especially paint on the edge area, if you check "Clamp overlap" will work fine, and the small width in the save range will work too.

I am glad I found out why, it's make me crash too, you can download the blend file to verification this , hope this can helpful, sorry for my poor English, very thanks.

untitled.blend
Exact steps for others to reproduce the error

Just open the .blend file, than paint in the 3d view.

Changed status to: 'Open'

Added subscriber: @Leroy-Xie

#48217 was marked as duplicate of this issue

Added subscriber: @ideasman42

Can't redo this bug, did this ever work?

Where are you painting exactly when Blender hangs?

@ideasman42 not ever, more happen on the edge area that bevel edge, check "Clamp overlap" will fine.

@ideasman42 I'm confused, I ask my friend to test this, he is ok, not crash : (

Added subscriber: @ChengduLittleA

Hello leroy,
I personally Veryfied this bug, it do happen when dragging mouse repeatedly over those seam areas, the interface halted and caused cpu usage to rise to about 35%, and about five second later it resumed. Later I'll upload a gif describing this issue.

Here is a short demostration of the bug{F304534}

Hi @ChengduLittleA very thanks for verify this, it's make me crazy

I can redo the slow-down @ChengduLittleA points out, but not the crash.

@Leroy-Xie - is Blender actually crashing? (exiting with some error), or does it just stop responding?

@ideasman42 not actually crashing, no exiting or error tip, just stop responding, perhaps because my computer too low, the CPU will become very high, and than stop responding, but if I check "Clamp overlap", it's will be work fine. never happen that.

Changed status from 'Open' to: 'Resolved'

Added subscribers: @Sergey, @ONNIU

This issue was referenced by 3ac2028df0

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Texture paint in the 3d View will crash, if you not check "Clamp Overlap" in the Bevel modifier #48202