write-a-hash-table VS tinyrenderer

Hi! I'm learning C through project based learning building a hash_table implementation. The linked folder has an implementation of hashing algorithm displayed in the link below. My question is why is there a pointer for `char\*`. Whats the use of it if its just a regular function iterating over the string?

The above code snippet is taken from this github repo. In the second struct what does a pointer to a pointer to a type `ht_item` mean? I know what a pointer would do in this case but having a pointer to a pointer is not clicking anything in me. Please help

C: Learn how to write a hash table in C

C++: How OpenGL works: software rendering in 500 lines of code

I don’t think that exists (I sure would like for it to), but until it does you could amuse yourself with:

- A 500-line (non-OpenGL-compatible) 3D rasterizer: https://github.com/ssloy/tinyrenderer/wiki.

- A “hello Wayland” app written in C without libwayland or anything else: https://gaultier.github.io/blog/wayland_from_scratch.html.

- A “hello X11” app written in x86-64 assembly(!) without libX11, libxcb, or anything else: https://gaultier.github.io/blog/x11_x64.html.

the tinyrenderer[1] project has been on my todos forever now. glad to see the author is writing more self-paced programming projects.

[1]: https://github.com/ssloy/tinyrenderer

- Game development - Unity3D project based learning in C#: https://learn.unity.com/ - Graphics - There was another user on r/GraphicsProgramming the other day (who teaches Computer Graphics at his university) that linked their lecture series for the entry year of their course here: https://tamats.com/learn/realtime-graphics/ - Project based learning: https://github.com/ssloy/tinyrenderer/wiki - Rendering API tutorials: https://vulkan-tutorial.com/, https://learnopengl.com/

There are a couple of excellent resources out there for implementing 3D rendering from scratch.

On that I cannot recommend enough is this github repo:

https://github.com/ssloy/tinyrenderer/wiki/Lesson-0:-getting...

If you are more of a visual learner, this guy is also a treasure trove:

https://www.youtube.com/watch?v=ih20l3pJoeU

Other people have mentioned ray-tracing in one weekend

If anyone is really interested in graphics I would also recommend TinyRenderer

https://github.com/ssloy/tinyrenderer/wiki

This one is a CPU-based rasterizing renderer

Its good if you want to get a good understanding of what a GPU does underneath

I was in a similar position to you, and I first did this https://github.com/ssloy/tinyrenderer/wiki

Yes, my thoughts exactly, shader!=program on GPU. It's just a code which calculates pixel color or pixel position. See for example this: https://github.com/ssloy/tinyrenderer/blob/master/main.cpp. It's not GLSL or anything uploadable to GPU yet it's still a shader.

In terms of a project which would be worthwhile, I think building a software rasterizer from scratch is a useful first step. TinyRenderer is a great place to start. Looking at the high level overview of many graphics subjects, ScratchAPixel is a valuable resource. Theres also just great information in some of the rote graphics programming textbooks (Michael Abrash's Black Book fully available online from Jason Gregory, and this book is really interesting). The "RayTracer in a weekend" series is also (seemingly) very illuminating (no pun intended).