Revive the ReloadableProgram

[mahroni-14]

I have created a Custom Window Context with GLFW, where I have needed to create a single file shader program with below code:

resources.programs.load(ProgramDescription(path = shader_path, reloadable = True))

I am unable to understand the behavior of the code. Does it suppose to reload the shader program auto magically or I am missing something?

[einarf]

That one is lingering from the my original project this one is based on. It was a bit more frameworky so there was a default R key mapped in debug mode that would reload all programs marked as reloadable. This will only work if you are rendering with VAO instances.

I had completely forgotten about this and it might be possible to salvage it. It's a very useful feature to be able to reload programs while running.

[mahroni-14]

Thank you, for your quick answer.

So, for the default R key behavior do I need to use the Default camera?
If so, how can I use this behavior from my code. Is there any utility method?
You see I am trying to make a ShaderToy like system but whenever a glsl file change,
I need it to be re-create the program.

[einarf]

The reload stuff is not really working well, so I would abandone using the reloadable=True system for now. We should keep this one open as a reminder to fix this issue.

In the meantime you can look at : https://github.com/einarf/shadertoy

[mahroni-14]

What you have made it already?? :D

[einarf]

Of course. It's not perfect, but it works 😄

[mahroni-14]

Do you use any kind of file watcher?

[einarf]

Nope. It just stats the files in intervals. A bit lazy, but I needed it to work cross platform. There was some bug with a library I was using for it and I just took the simple path for now.

[mahroni-14]

Thank you.

So, do you have any future plan about ReloadableProgram support with watchdog or something like that for moderngl-window?

[einarf]

It's an immensely useful feature, so the plan is definitely to add it when there is time. This issue can be a reminder that it needs to be done.