[Work in progress] Hand drawn effect

Hi,

I’m actually workling on a “hand drawn” effect
Concept is to simlplify (a lot !) objects, calculate edges, and then draw lines
Render is pretty ok , still have a lot to do, but give me opinion or your hints to improve :slight_smile:

Thanks
Jeremy

Render:

Original:

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I like the seemingly “fading” of the lines, i.e. their varying thicknesses, and also the “overshoot” where lines which are perpendicular to each other intersect. What’s still a little bit too perfect, imo, is the straightness of the lines, which would be hard to achieve if truely drawn by hand.

Very well done so far! :+1:

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Tks for your comment :slight_smile:
You’re right, i will improve randomization on long lines :slightly_smiling_face:

Really nice work Jeremy!

How did you do that exactly? I am interested because I’d like to make a render of this old map of Paris (Turgot, 1734).

Could you share the code please? Thanks!

It may lack a second degree of hierarchy:

  • materials retain the base color, such as blue walls and brown shelves. Think watercolor washes.
  • inverse scale, as naïve mapmakers tend to dramatize sea dragons and the visual weight of subtle details. Think Chibi anime.

Hi Kazes, actually it is only working on “boxes” , i will let you know if my code can do something llike you need

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Hello kpachinger
Thanks for advices :slight_smile:

Hope i’ll have time to do such features :slight_smile:

Thanks, anyway I would be interested in looking how you did it :victory_hand:

As I read @vielzutun.ch 's suggestion about straightness of strokes, I recalled that more than a decade ago I tried emulating hand drawing. It was OpenGL at that time, here is a short video of sketching a house:

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Tried? Looks like you very much succeeded. What became of this?

Nothing. I’m not aware of anyone using it

Looks good!

Here are some examples of similar stuff:

Interactive map (here are some details on how it was made)

Shadertoy hatching

Shadertoy pencil

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