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White Gap Problem on Divide Operation Between Shapes


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Hey @GabrielM,

If I wanted to compound an object I would have used the Add. I am using the Divide cause I want to DIVIDE. lol. I want to cut a shape by another shape. It's just a basic test that fails in Affinity (cause it creates the white gaps) but works in Illustrator / Sketch. 

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Hi Vadim Rob,
Welcome to Affinity Forums :)
This is a side effect oh how the rendering engine works. What you are seeing is the background colour (white) bleeding through the edges of the resulting three shapes due to antialiasing. Currently there's no solution other than disguise the effect, either adding a thin stroke to the shapes, overlapping the object a little (when applicable), placing an object with the same color of the shapes behind or tweaking the coverage maps settings (although this last one may create other issues depending on the object's positions). We are still looking into ways to improve this. For more information check this post from one of the developers.

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Or you can try the Blend Options and the coverage map and make a shape like an L rotate 90º clockwise, As taught by MEB ;-)

1500539457_ScreenShot2018-08-09at10_35_06.thumb.png.b736801f30cfba345513488c4b9cb59d.png

794865526_ScreenShot2018-08-09at10_35_23.png.ef78a55f2a1ed0baa1eef1f205a6c17c.png

iMac 27" 2019 Somona 14.3.1, iMac 27" Affinity Designer, Photo & Publisher V1 & V2, Adobe, Inkscape, Vectorstyler, Blender, C4D, Sketchup + more... XP-Pen Artist-22E, - iPad Pro 12.9  B| (Please refrain from licking the screen while using this forum)

Affinity Help - Affinity Desktop Tutorials - Feedback - FAQ - most asked questions

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42 minutes ago, MEB said:

Hi Vadim Rob,
Welcome to Affinity Forums :)
This is a side effect oh how the rendering engine works. What you are seeing is the background colour (white) bleeding through the edges of the resulting three shapes. Currently there's no solution other than disguise the effect, either adding a thin stroke to the shapes, overlapping the object a little (when applicable), placing an object with the same color of the shapes behind or tweaking the coverage maps settings (although this last one may create other issues). We are still looking into ways to improve this. For more information check this post from one of the developers.

Hope this gets fixed. I'm looking for a software to ditch illustrator with but this is a deal breaker. I am doing professional client work and I can't have gaps rendered between my divides. Thanks!

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35 minutes ago, firstdefence said:

Or you can try the Blend Options and the coverage map and make a shape like an L rotate 90º clockwise, As taught by MEB ;-)

1500539457_ScreenShot2018-08-09at10_35_06.thumb.png.b736801f30cfba345513488c4b9cb59d.png

794865526_ScreenShot2018-08-09at10_35_23.png.ef78a55f2a1ed0baa1eef1f205a6c17c.png

Thanks for the tip, but it shouldn't be so difficult for such a simple thing. Imagine complex multiple shape artworks and having to do that on every divide. It's a pain. 

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36 minutes ago, Vadim Rob said:

Thanks for the tip, but it shouldn't be so difficult for such a simple thing. Imagine complex multiple shape artworks and having to do that on every divide. It's a pain.

I agree, I think what the method does is mute the antialiasing, unfortunately this is all we have at the moment. This Method can't be applied to Groups either, You have to select the Layers within the Groups, you can select Layers enmasse by "cmd/ctrl + drag select" this will select the Layers within Groups and will also select Layers within Symbols, the latter is more of a warning to be careful with cmd/ctrl + drag select if you have Symbols, this was an issue for a recent poster when trying to move Symbols and Text together.

iMac 27" 2019 Somona 14.3.1, iMac 27" Affinity Designer, Photo & Publisher V1 & V2, Adobe, Inkscape, Vectorstyler, Blender, C4D, Sketchup + more... XP-Pen Artist-22E, - iPad Pro 12.9  B| (Please refrain from licking the screen while using this forum)

Affinity Help - Affinity Desktop Tutorials - Feedback - FAQ - most asked questions

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Adding a default .24 pt middle stroke of the same color masks the problem, as MEB mentioned. with many shapes using the same color, its easy to apply the stroke style to all. Also, the flaw appears only between shapes whose color is the same, or only a little different. 

iMac 27" Retina, c. 2015: OS X 10.11.5: 3.3 GHz I c-5: 32 Gb,  AMD Radeon R9 M290 2048 Mb

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