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New Vertex Painter Problems: Brush Size + Swap

Since upgrading to 4.17 we find ourselves with a very peculiar problem, the vertex painter tool has less features than it used to have. We can no longer increase brush size beyond 256 and can no longer swap erase and paint colors. Beyond that the documentation for the vertex painter has not been updated, so any new features that were added are unknown to us.

We use vertex color on many of our static meshes and increasing the brush size beyond 256 is absolutely essential. Swapping Colors is also important when filling meshes with Color. These features are missed greatly.

Is there anyway to revert back to the old tool or at least increase the brush size beyond 256?

Product Version: UE 4.17
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asked Sep 07 '17 at 11:29 PM in Using UE4

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avatar image rkoshi Sep 12 '17 at 07:05 AM

i have the same problem. attached screenshot of radius setting and smaller brush. the max radius (paint->colors->brush->radius) value is erroneously set in the source build, should be very simple to change the value.alt text

vtex.jpg (432.6 kB)
avatar image cgDermot Sep 12 '17 at 02:25 PM

Same here, I'm still V4.16. Had hoped this was fixed in 4.17 Will wait for 4.18 to see if there is a fix.

avatar image helmethair3000 Nov 02 '17 at 05:57 PM

Still a problem in 4.18. Anyone have a fix???

avatar image cgDermot Nov 02 '17 at 06:01 PM

:) !Nooooooo!

avatar image cgDermot Nov 02 '17 at 06:11 PM

You could asign your vertex colors in you content creation tools ( Max, Maya etc etc). I started doing that a long before the UE4 brush size issues started. It's faster and you have better tools & control.

avatar image helmethair3000 Nov 02 '17 at 06:34 PM

The whole point was to be able to do it within Unreal. Not using Unreal to do it doesn't solve the problem.

avatar image cgDermot Nov 02 '17 at 06:46 PM

True, its a work around not a fix. Its all about using the best tool for the job I guess. If you dont use content creation tools, then I can see why it's not an attractive option.

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Try this; open DefaultEditor.ini in your project's Config folder and add the following to the bottom:


Set 'MaxBrushRadius' to however big you want the limit to be.

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answered Nov 29 '17 at 11:48 PM

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avatar image Fisher007 Dec 05 '17 at 04:38 PM

Not working unfortunately. :(

avatar image Devin.E Dec 30 '17 at 12:46 PM

thanks dude this does work in 4.18 :)

seriously you saved me from a bunch of work.

avatar image Esoteric3d Feb 07 '18 at 01:57 AM

Thanks man its working good! I am in 4.18 as well.

avatar image Pixel_Error May 19 '18 at 04:30 PM

Does this also work for Landscape painting?

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