Remove assets from repository and download them using xmake

assets/shaders/skybox.nzsl

@@ -0,0 +1,52 @@
+[nzsl_version("1.0")]
+module;
+
+import Engine.ViewerData;
+
+external
+{
+	[binding(0)] viewerData: uniform[ViewerData],
+	[binding(1)] skybox: samplerCube[f32]
+}
+
+struct VertOut
+{
+    [location(0)] uvw: vec3[f32],
+    [builtin(position)] position: vec4[f32]
+}
+
+struct FragOut
+{
+    [location(0)] color: vec4[f32],
+    [builtin(fragdepth)] depth: f32
+}
+
+[entry(frag)]
+[depth_write(greater)]
+fn main(input: VertOut) -> FragOut
+{
+    let output: FragOut;
+    output.color = skybox.Sample(input.uvw);
+    output.depth = 1.0;
+
+    return output;
+}
+
+struct VertIn
+{
+	[location(0)] position: vec3[f32]
+}
+
+[entry(vert)]
+fn main(input: VertIn) -> VertOut
+{
+    // Set translation part to zero
+    let rotationMat = viewerData.viewMatrix;
+    rotationMat[3].xyz = vec3[f32](0.0, 0.0, 0.0);
+
+    let output: VertOut;
+    output.position = viewerData.projectionMatrix * rotationMat * vec4[f32](input.position, 1.0);
+    output.uvw = input.position.xyz;
+
+    return output;
+}