minor changes, wip shader

kubi/shaders/world.wgsl

@@ -1,19 +1,34 @@
-//TODO migrate, this is just some filler code to make the game compile
+struct Uniform {
+  position_offset: vec3<f32>,
+  view_proj: mat4x4<f32>,
+};
+
+@group(1) @binding(0)
+var<uniform> world: Uniform;
+
+struct VertexInput {
+  @location(0) position: vec3<f32>,
+  @location(1) normal: vec3<f32>,
+  @location(2) uv: vec2<f32>,
+  @location(3) tex_index: vec2<u8>,
+}
 
 struct VertexOutput {
-  @builtin(position) position: vec4<f32>,
-};
+  @builtin(position) clip_position: vec4<f32>,
+  @location(0) tex_coords: vec2<f32>,
+}
 
 @vertex
 fn vs_main(
-  @builtin(vertex_index) in_vertex_index: u32,
+  model: VertexInput,
 ) -> VertexOutput {
   var out: VertexOutput;
-  out.position = vec4<f32>(0.0, 0.0, 0.0, 1.0);
+  out.tex_coords = model.tex_coords;
+  out.clip_position = camera.view_proj * vec4<f32>(model.position, 1.0); // 2.
   return out;
 }
 
 @fragment
 fn fs_main(in: VertexOutput) -> @location(0) vec4<f32> {
-  return vec4<f32>(0.3, 0.2, 0.1, 1.0);
+  return vec4(1.0, 0.0, 0.0, 0.0);
 }

kubi/src/rendering.rs

@@ -4,7 +4,7 @@ use winit::{
   window::{Window, WindowBuilder, Fullscreen},
   dpi::PhysicalSize,
 };
-use glam::Vec3;
+use glam::{Vec3, Mat4};
 use pollster::FutureExt as _;
 use crate::{events::WindowResizedEvent, settings::{GameSettings, FullscreenMode}};
 
@@ -17,6 +17,14 @@ pub mod world;
 pub mod selection_box;
 pub mod entities;
 
+pub const OPENGL_TO_WGPU_MATRIX: Mat4 = Mat4::from_cols_array(&[
+  1.0, 0.0, 0.0, 0.0,
+  0.0, 1.0, 0.0, 0.0,
+  0.0, 0.0, 0.5, 0.0,
+  0.0, 0.0, 0.5, 1.0,
+]);
+
+
 #[derive(Unique)]
 pub struct RenderTarget {
   pub output: wgpu::SurfaceTexture,

kubi/src/rendering/world.rs

@@ -27,8 +27,7 @@ pub struct ChunkVertex {
 #[derive(Clone, Copy, bytemuck::Pod, bytemuck::Zeroable)]
 struct WorldUniform {
   position_offset: [f32; 3],
-  view: [[f32; 4]; 4],
-  perspective: [[f32; 4]; 4],
+  view_proj: [[f32; 4]; 4],
 }
 
 pub fn draw_world(