Introduce pipeline, shader sketch

src/game.zig

@@ -8,6 +8,31 @@ const main = @import("main.zig");
 var show_console: bool = false;
 var show_demo_window: bool = false;
 
+const Vertex = extern struct {
+    position: [3]f32,
+    tex_coord: [2]f32,
+    normal: [3]f32,
+    tangent: [4]f32,
+
+    pub fn init(x: f32, y: f32, z: f32, u: f32, v: f32, nx: f32, ny: f32, nz: f32, tx: f32, ty: f32, tz: f32, tw: f32) Vertex {
+        return .{
+            .position = .{ x, y, z },
+            .tex_coord = .{ u, v },
+            .normal = .{ nx, ny, nz },
+            .tangent = .{ tx, ty, tw, tz },
+        };
+    }
+};
+
+const vertex_buffer = [_]Vertex{
+    Vertex.init(-0.5, -0.5, 0, 0, 1, 0, 0, 1, 1, 0, 0, -1),
+    Vertex.init(0.5, -0.5, 0, 1, 1, 0, 0, 1, 1, 0, 0, -1),
+    Vertex.init(-0.5, 0.5, 0, 0, 0, 0, 0, 1, 1, 0, 0, -1),
+    Vertex.init(0.5, 0.5, 0, 1, 0, 0, 0, 1, 1, 0, 0, -1),
+};
+
+const index_buffer = [_]u16{ 0, 1, 2, 2, 1, 3 };
+
 pub fn init() void {}
 
 pub fn update(dt: f32) void {