Vim plugin for preview GLSL and WGSL (only fragment shader). This plugin is inspired from previm/previm

• GLSL ES 1.0
  • Browser must support WebGL 1.0 or above.
• GLSL ES 3.0
  • Browser must support WebGL 2.0.
• WGSL
  • Browser must support WebGPU.
  • EXPERIMENTAL

No need for extra libraries or plug-ins.

It can, however, be integrated with open-browser.vim. For detailed usages, please see below.

1. Define g:previmglsl_open_cmd in .vimrc
   • This command is used in terminal for opening your browser.
   • For example, uses Safari on Mac let g:previmglsl_open_cmd = 'open -a Safari'
   • :help g:previmglsl_open_cmd for more details
   • You can skip this setting if you're using open-browser.
2. Start editing the file of Markdown.(filetype is markdown)
3. Run :PrevimGlslOpen to open browser to preview
4. Back to Vim to edit your file
5. Update the file, and the content for previewing will be updated automatically

To force a refresh run :PrevimGlslRefresh. To clear the preview cache (in dir PLUGIN_INSTALL/preview) run :PrevimGlslWipeCache.

There is an issue using Safari 13.0.3, which page transition stops after "Loading...".

You need to set up below to make previmglsl work on Safari.

1. Safari > Preference > Advanced > check "Show develop menu" in menubar
2. Develop > Disable Local File Restrictions

This software is released under the public domain, see LICENSE.