[HN Gopher] Canvas_ity: A tiny, single-header <canvas>-like 2D r...
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       Canvas_ity: A tiny, single-header <canvas>-like 2D rasterizer for
       C++
        
       Author : PaulHoule
       Score  : 37 points
       Date   : 2026-02-21 18:50 UTC (4 hours ago)
        
 (HTM) web link (github.com)
 (TXT) w3m dump (github.com)
        
       | ranger_danger wrote:
       | vibe-coded?
        
         | nicoburns wrote:
         | Most likely not seeing as the commit containing the bulk of the
         | implementation dropped in 2022.
        
           | ranger_danger wrote:
           | maybe just the README then
        
             | flowerbreeze wrote:
             | The README is older than ChatGPT too. It's very unlikely
             | that it's vibe coded or vibe written.
        
         | peter-m80 wrote:
         | Would that be an issue?
        
           | 1bpp wrote:
           | Yes.
        
           | Amlal wrote:
           | Yes, it's a canvas library, there's a lot of risks of
           | including AI generated code that hasn't been checked in a
           | rasterizing library.
        
             | ivanjermakov wrote:
             | A lot of risks compared to what? I imagine bugs in kernel
             | drivers or disk utilities be riskier.
        
             | JoeyJoJoJr wrote:
             | Such as?
        
       | nicoburns wrote:
       | The list of "recommended reading" from one of the issues looks
       | great:
       | 
       | https://github.com/a-e-k/canvas_ity/issues/11#issuecomment-2...
        
       | Lerc wrote:
       | It would be interesting to compile to WASM to compare side by
       | side for performance and accuracy.
        
       | msephton wrote:
       | The project is great. The HN comments are embarrassing. Isn't it
       | ironic to imply laziness by chiming in with "vibe coded" which in
       | itself is such a lazy reaction.
        
       | ddtaylor wrote:
       | Thank you for sharing. The only thing I don't understand why this
       | is a header only implementation with a macro that goes in a C++
       | file.                   #define CANVAS_ITY_IMPLEMENTATION
        
         | socalgal2 wrote:
         | that's a common pattern in C++ land because there is no
         | standard way to use libraries in C++
         | 
         | https://github.com/p-ranav/awesome-hpp
        
         | erwincoumans wrote:
         | It is common for header-only libraries: you need to include
         | this header in one c++ using the macro for linking (don't use
         | that macro in other c++ files to avoid duplicate symbols). In
         | C++, you can declare a function as many times as you want, but
         | you can only define it (write the actual body) once in the
         | entire project.
        
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       (page generated 2026-02-21 23:00 UTC)