write some dumb shader code

kubi/shaders/world.wgsl

@@ -0,0 +1,42 @@
+// struct Uniforms {
+//   transform: mat4x4<f32>;
+// };
+
+// @group(1) @binding(0)
+// var<uniform> uniforms: Uniforms;
+
+struct VertexInput {
+  @location(0) position: vec3<f32>,
+  @location(1) normal: vec3<f32>,
+  @location(2) uv: vec2<f32>,
+  @location(3) @interpolate(flat) tex_index: u32,
+}
+
+struct VertexOutput {
+  @builtin(position) clip_position: vec4<f32>,
+  @location(0) uv: vec2<f32>,
+  @location(1) normal: vec3<f32>,
+  @location(2) color: vec4<f32>,
+  @location(3) @interpolate(flat) tex_index: u32,
+};
+
+@vertex
+fn vs_main(
+  in: VertexInput,
+) -> VertexOutput {
+  var out: VertexOutput;
+  out.uv = in.uv;
+  out.clip_position = vec4<f32>(in.position, 1.0);
+  return out;
+}
+
+@group(0) @binding(0)
+var t_diffuse: texture_2d_array<f32>;
+
+@group(0) @binding(1)
+var s_diffuse: sampler;
+
+@fragment
+fn fs_main(in: VertexOutput) -> @location(0) vec4<f32> {
+  return textureSample(t_diffuse, s_diffuse, in.uv, in.tex_index);
+}