hatch, crosshatch, rendering challenge

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Lazur
Posts: 4345
Joined: Tue Jun 14, 2016 10:38 am

Re: hatch, crosshatch, rendering challenge

Postby Lazur » Wed Dec 07, 2016 4:58 am

Here it is, a "newsprint" halftone filter:

Image

Lazur
Posts: 4345
Joined: Tue Jun 14, 2016 10:38 am

Re: hatch, crosshatch, rendering challenge

Postby Lazur » Sat Dec 17, 2016 7:56 am

Without the fancy blending, just simulating three ink fills:

Image


There seems to be a cairo rendering issue on repeating radial gradients when the handles are too small so had to go with linear gradients fot the hatch base.

Lazur
Posts: 4345
Joined: Tue Jun 14, 2016 10:38 am

Re: hatch, crosshatch, rendering challenge

Postby Lazur » Sat Dec 17, 2016 12:25 pm

Hatching with a "snowflake based pattern":

Image

Lazur
Posts: 4345
Joined: Tue Jun 14, 2016 10:38 am

Re: hatch, crosshatch, rendering challenge

Postby Lazur » Sun Dec 18, 2016 12:38 pm

Image

Lazur
Posts: 4345
Joined: Tue Jun 14, 2016 10:38 am

Re: hatch, crosshatch, rendering challenge

Postby Lazur » Mon Dec 19, 2016 9:03 am

Not exactly a hatch but a halftone pattern -made with the same concept and slightly altered filter:

Image

Got a few more with variants of the source pattern in this collection.

Lazur
Posts: 4345
Joined: Tue Jun 14, 2016 10:38 am

Re: hatch, crosshatch, rendering challenge

Postby Lazur » Sat Apr 01, 2017 10:39 pm

Image

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BlueKnight
Posts: 53
Joined: Sat Jun 16, 2012 10:37 pm

Re: hatch, crosshatch, rendering challenge

Postby BlueKnight » Sat Apr 01, 2017 11:22 pm

Are all of these filters or you did it by hand? Just curious.

Thank you!

Lazur
Posts: 4345
Joined: Tue Jun 14, 2016 10:38 am

Re: hatch, crosshatch, rendering challenge

Postby Lazur » Sun Apr 02, 2017 3:24 am

Made the filters myself and added them to existing images mostly.

Used openclipart as a host and they won't accept raster images. However such a filter looks best on images with a wide tone range&details, so mostly on raster images -those cases I made a bitmap copy of the filtered object and traced the result.
Like with that teddy bear. Although tracing that was just the result of some buggy behavior of inkscape.


Off topic:
Planning to outsource all my uploads from openclipart in the long run but currently I have no time or energy to deal with them.


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