Fix

node_modules/shiki/samples/hlsl.sample

@@ -0,0 +1,20 @@
+struct VS_OUTPUT
+{
+    float4 Position   : SV_POSITION;
+    float4 Diffuse    : COLOR0;
+    float2 TextureUV  : TEXCOORD0;
+};
+
+VS_OUTPUT RenderSceneVS( float4 vPos : POSITION,
+                         float3 vNormal : NORMAL,
+                         float2 vTexCoord0 : TEXCOORD,
+                         uniform int nNumLights,
+                         uniform bool bTexture,
+                         uniform bool bAnimate )
+{
+    VS_OUTPUT Output;
+    ...
+    return Output;
+}
+
+// From https://learn.microsoft.com/en-us/windows/win32/direct3dhlsl/dx-graphics-hlsl-function-syntax