[HN Gopher] Ink deformation
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       Ink deformation
        
       Author : surprisetalk
       Score  : 78 points
       Date   : 2025-10-03 18:01 UTC (3 days ago)
        
 (HTM) web link (www.inkandswitch.com)
 (TXT) w3m dump (www.inkandswitch.com)
        
       | foofoo12 wrote:
       | Confusing landing page. Is this a specific software or a general
       | idea?
        
         | joaogui1 wrote:
         | It's their lab notes, so it's exploring a general idea, but
         | they're also referencing previous software they've built (like
         | crosscut)
        
       | egypturnash wrote:
       | > The main drawback of all these techniques [such as PS/AI's
       | 'Puppet Warp'] is that they require running a solver, making them
       | very computationally expensive, which is not ideal in a real-time
       | environment.
       | 
       | What kind of system are these people running this on, I've been
       | grabbing collections of paths in Illustrator and pushing them
       | around in realtime with Puppet Warp for _years_.
       | 
       | Also I turned off the "automatically generate puppet pins" switch
       | ages ago because it _never_ guessed right and I got tired of
       | deleting a bunch of pins before dropping my own in.
        
         | fwip wrote:
         | Judging from previous Ink&Switch work, the target devices are
         | likely tablets or below.
         | 
         | There's also various levels of "real-time" - pushing something
         | in Illustrator might require less responsiveness to feel fluid
         | than handwriting feedback.
        
         | torginus wrote:
         | Isn't this kinda how joints and other constraints (and IK) work
         | in physics engines?
         | 
         | I'm sure it's not trivial, but there's a large literature and
         | existing code that helps us in figuring out how to do this in
         | real time.
        
       | abdullahkhalids wrote:
       | The draw-to-CAD idea in there is super interesting. I have been
       | trying to learn CAD over the past few months using FreeCAD. I
       | imagine it would be easier if instead of using structured tools
       | for drawing fixed shapes, one could draw shapes free-hand using
       | pen and tablet. The free hands get transformed into "formal"
       | shapes and then manipulated more. Possibly completely different
       | experience.
        
       | jmull wrote:
       | I've been playing around in this area recently (in a much more
       | limited way).
       | 
       | This perspective and these notes are absolutely golden.
        
       | bosunknows wrote:
       | Love the lab note aesthetic!
        
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       (page generated 2025-10-06 23:00 UTC)