Rust gpu

shaders_old/lighting.wgsl

@@ -0,0 +1,30 @@
+
+@vertex
+fn vertex_main(@builtin(vertex_index) vertex_id:  u32) -> @builtin(position) vec4<f32>
+{
+
+    let vertices = array<vec2<f32>, 3>(
+        vec2(-1., -3.),
+        vec2(-1., 1.),
+        vec2(3., 1.),
+    );
+
+    return vec4(vertices[vertex_id], 0., 1.);
+}
+
+@group(0) @binding(0) var albedo_tex: texture_storage_2d<rgba32float, read>;
+@group(0) @binding(1) var position_tex: texture_storage_2d<rgba32float, read>;
+@group(0) @binding(2) var normal_tex: texture_storage_2d<rgba32float, read>;
+@group(0) @binding(3) var depth_tex: texture_depth_2d;
+
+@fragment
+fn fragment_main(@builtin(position) screen_position: vec4<f32>) -> @location(0) vec4<f32>
+{
+    let texel_position = vec2<u32>(screen_position.xy);
+
+    let albedo = textureLoad(albedo_tex, texel_position);
+    let position = textureLoad(position_tex, texel_position);
+    let normal = textureLoad(normal_tex, texel_position);
+    let depth = textureLoad(depth_tex, texel_position, 0);
+    return vec4(depth / 1000.);
+}