realistic pen pencil chalk line help

Post questions on how to use or achieve an effect in Inkscape.
unofornaio
Posts: 12
Joined: Sun Nov 22, 2015 6:41 am

realistic pen pencil chalk line help

Postby unofornaio » Fri Sep 13, 2019 5:39 am

Hi there I have searched and come up with several examples of what Im looking to do but I just cant seem to figure out why i can not get it to work.
I have an old hand drawn image of my daughter that I created years ago for part of our logo. The original is long gone and all I have now is a scanned in image of a photo copy.
I took this and traced over it with just the pencil tool and have got an image I am mostly happy with but I would really like to make the lines a little less pure solid and look more textured like a real pen or pencil. I saw the post on the signature and the answer was simply to add a filter i believe it was distort-chalk/sponge. I cannot get this to work on the full image or even on a single stroke of the pencil separate from the image. When I apply the filter or any for that matter to the pen stroke it massively distorts the stroke or in some cases it disappears from the selection box altogether (the box around the selected pen stroke)
How I made the original stroke was just a simple black line adjusted the width selected it then double clicked on the pencil tool and chose take from selection. The line width is 2.034 no fill just stroke. When I apply the chalk/sponge filter it blows the line up. I will try to add an attachment of the drawing and the line before and after. The blue area is showing the selected line to the left after the chalk/sponge filter was added. I changed the color to white to show better but that is it. As you can see it increased the size and completely blew it up.
Thank you for any help and guidance.
I am not sure how to attache the image. Which file format is the best to save it in. I used png and pdf and both were distorted. svg is too large

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druban
Posts: 1867
Joined: Fri Nov 20, 2009 10:48 pm

Re: realistic pen pencil chalk line help

Postby druban » Fri Sep 13, 2019 10:01 am

those strokes are just too narrow to use effectively with that filter. Just scale the whole drawing up. I have found the best chalk effects to start around stroke widths of 16 and around 32 they are what might actually look like pastel on paper. You could open up the filter editor and play with frequency slider but even then you will have better luck starting large
Having said all that though I feel I should add that Inkscape and vector may be the wrong tool for this unless you specifically have a need for scaleability. The GIMP is a pixel based program that can do a much better job of simulating these textures.
If your SVG is too large I guess it might be because you still have the source image in it, just delete it and the size should be much smaller
Your mind is what you think it is.

unofornaio
Posts: 12
Joined: Sun Nov 22, 2015 6:41 am

Re: realistic pen pencil chalk line help

Postby unofornaio » Fri Sep 13, 2019 12:47 pm

Thank you. I was thinking the same thing about the width of the lines and I believe you are absolutely correct.

Part of this conversion is motivated by the need for scaelability the small original logo actually has achieved a very nice "vintage" feel to it that goes well with our Old World theme being but. The need to scale it up is for say a banner or large print it kinda works but its rather furry. I though if I re do the whole thing correctly I would not need to worry about any size in future projects.

I'm not sure what is taking up so much space the image right now consists solely of just pencil lines and its at 470 MB. I also used the clean up document feature after reading a bit on it. The original has been deleted. I took a screen shot and will attach it here. It looks like i need to download gimp to do this properly.

Thank you again.
Attachments
logo drawing example.png
logo drawing example.png (90.5 KiB) Viewed 103 times

unofornaio
Posts: 12
Joined: Sun Nov 22, 2015 6:41 am

Re: realistic pen pencil chalk line help

Postby unofornaio » Fri Sep 13, 2019 1:24 pm

So some brief reading on GIMP I now understand more completely your "unless you have the need for scaleability" So if gimp is good for the effect but not scaleability then what is my option here? Im not sure how to "start big" in inkscape could you advise? A quick attempt to scale up the image produced the same results as the smaller image.
Here is the post I was refering to in my op as "signature"
viewtopic.php?f=5&t=19114&p=82865&hilit=PEN+FILTER#p82865
Thank you again.

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druban
Posts: 1867
Joined: Fri Nov 20, 2009 10:48 pm

Re: realistic pen pencil chalk line help

Postby druban » Sat Sep 14, 2019 7:01 am

470mb is a VERY. LARGE. FILE. for what you have shown here. Something unexpected is going on! I would have to look at the file to see where the weight is. If you have a cloud service like Onedrive or Google you may be able to use that but I think that is outside their limits too.

One thing we can do from here is have you open the file, activate the selection tool, press CTRL-ALT-A (select all in all layers) time how many seconds that takes then press the number 3 (zoom to selection) and without clicking anywhere then take a screenshot of the whole window that includes the status bar at the bottom of the window so I can see exactly what we have in that 470 mb. Please don't crop out things that you think are unimportant.
Your mind is what you think it is.

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druban
Posts: 1867
Joined: Fri Nov 20, 2009 10:48 pm

Re: realistic pen pencil chalk line help

Postby druban » Sat Sep 14, 2019 8:26 am

Just for fun here are four versions from your target. Note that the biggest file (babyface3) was ONLY 264KB, which was too large for this forum so I compressed it.
Attachments
babyface3.svgz
(124.5 KiB) Downloaded 2 times
babyface3.png
babyface3.png (222 KiB) Viewed 71 times
babyface4.png
babyface4.png (162.38 KiB) Viewed 71 times
babyface2.png
babyface2.png (145.01 KiB) Viewed 71 times
babyface1.png
babyface1.png (145.29 KiB) Viewed 71 times
babyface4.svg
(223.82 KiB) Downloaded 2 times
babyface2.svg
(124.37 KiB) Downloaded 2 times
babyface1.svg
(122.54 KiB) Downloaded 3 times
Your mind is what you think it is.


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