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https://github.com/thekorn/zig-learnopengl
LearnOpenGL in zig
https://github.com/thekorn/zig-learnopengl
opengl zig
Last synced: about 2 months ago
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LearnOpenGL in zig
- Host: GitHub
- URL: https://github.com/thekorn/zig-learnopengl
- Owner: thekorn
- Created: 2024-08-15T03:13:43.000Z (5 months ago)
- Default Branch: main
- Last Pushed: 2024-10-05T14:32:01.000Z (4 months ago)
- Last Synced: 2024-10-16T19:20:05.756Z (3 months ago)
- Topics: opengl, zig
- Language: Zig
- Homepage:
- Size: 58.6 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# learnOpenGL in zig
My journey following the [learnOpenGL](https://learnopengl.com/) tutorials in zig.
## Run each chapter
```bash
$ zig build hello_window
```
## development
In order to make implementation easier, translate the c code to zig:
```bash
$ zig translate-c $(pkg-config --cflags glfw3) src/cImports.h > translated_c.zig
```
In order to create a local env, with proper versions of zig, zls and glfw you can use nix to create a dev shell
```bash
$ nix develop -c zsh
```
## debugging using lldb
run bin using lldb
```bash
$ lldb ./zig-out/bin/shaders_6.7
(lldb) target create "./zig-out/bin/shaders_6.7"
Current executable set to '/Users/thekorn/devel/github.com/thekorn/zig-learnopengl/zig-out/bin/shaders_6.7' (arm64).
(lldb) breakpoint set -f shader.zig -l 38
Breakpoint 1: where = shaders_6.7`lib.shader.Shader.create + 220 at shader.zig:39:48, address = 0x0000000100001404
(lldb) r
Process 45400 launched: '/Users/thekorn/devel/github.com/thekorn/zig-learnopengl/zig-out/bin/shaders_6.7' (arm64)
Maximum nr of vertex attributes supported: 16
2024-08-21 12:53:37.078226+0200 shaders_6.7[45400:2512915] flock failed to lock list file (/var/folders/jj/nppjk2p91652kl8z71xwrxrr0000gn/C//com.apple.metal/16777235_594/functions.list): errno = 35
Process 45400 stopped
* thread #1, queue = 'com.apple.main-thread', stop reason = breakpoint 1.1
frame #0: 0x0000000100001404 shaders_6.7`lib.shader.Shader.create(vert_code=(ptr = "#version 330 core\nlayout(location = 0) in vec3 aPos;\n\nvoid main()\n{\n gl_Position = vec4(aPos.x, aPos.y, aPos.z, 1.0);\n}\n", len = 123), frag_code=(ptr = "#version 330 core\nout vec4 FragColor;\n\nuniform vec4 ourColor;\n\nvoid main()\n{\n FragColor = ourColor;\n}\n", len = 105)) at shader.zig:39:48
36
37 try check_shader_error(vertexShader);
38
-> 39 const fragmentShader = c.glCreateShader(c.GL_FRAGMENT_SHADER);
40 defer c.glDeleteShader(fragmentShader);
41
42 const fragmentSrcPtr: ?[*]const u8 = frag_code.ptr;
Target 0: (shaders_6.7) stopped.
(lldb) frame variable
([]u8) vert_code = (ptr = "#version 330 core\nlayout(location = 0) in vec3 aPos;\n\nvoid main()\n{\n gl_Position = vec4(aPos.x, aPos.y, aPos.z, 1.0);\n}\n", len = 123)
([]u8) frag_code = (ptr = "#version 330 core\nout vec4 FragColor;\n\nuniform vec4 ourColor;\n\nvoid main()\n{\n FragColor = ourColor;\n}\n", len = 105)
(unsigned int) vertexShader = 1
(unsigned char *) vert_src_ptr = 0x0000000100098f84 "#version 330 core\nlayout(location = 0) in vec3 aPos;\n\nvoid main()\n{\n gl_Position = vec4(aPos.x, aPos.y, aPos.z, 1.0);\n}\n"
(unsigned int) fragmentShader = 0
(unsigned char *) fragmentSrcPtr = 0x00000001380325a8 ""
(unsigned int) shaderProgram = 1
(lldb)
```