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WebGL + Rust: Basic Water Tutorial

by chinedufn on 1/7/19, 2:38 PM with 19 comments

• by spullara on 1/7/19, 4:43 PM

  It doesn't look like water to me. This looks a lot more like water: http://madebyevan.com/webgl-water/

• by shepmaster on 1/7/19, 9:04 PM

  For more work from the same author, see their presentation "Percy: Isomorphic Web Apps with Rust + WebAssembly" at the most recent Rust Belt Rust:

  - https://www.youtube.com/watch?v=M6RLvGqQU10&list=PLgC1L0fKd7...

• by ProjectBarks on 1/7/19, 7:02 PM

  I have always thought about getting into rust but since so many of projects are web focused its hard to integrate it into a project. This really makes me want to explore Rust!

• by ridiculous_fish on 1/7/19, 9:57 PM

  Question about code like this:

      fn render_reflection_fbo(
          &mut self,
          gl: &WebGlRenderingContext,
          state: &State,
          assets: &Assets,
      ) {
          gl.bind_framebuffer(...);
          gl.viewport(...);
  
          gl.clear_color(...);
          gl.clear(...);
  
  

  Setting the viewport and clear color sure look to be mutating, but they are being called on a shared reference (&WebGlRenderingContext).

  Why is it designed this way? Is this design considered sound, or is it a hack?

• by bencollier49 on 1/7/19, 4:13 PM

  I like the visual pun with the crow made of stone flying across the scene.

• by CyberDildonics on 1/7/19, 3:13 PM

  I'm not sure why rust and webassembly are significant here. All the webgl commands still need to be javascript and the shaders still need to be glsl. Almost nothing in a demo like this needs to be done on the cpu.