chore: sync workspace state

MVS/3DGS-Unity/Shaders/GaussianComposite.shader

@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: MIT
+Shader "Hidden/Gaussian Splatting/Composite"
+{
+    SubShader
+    {
+        Pass
+        {
+            ZWrite Off
+            ZTest Always
+            Cull Off
+            Blend SrcAlpha OneMinusSrcAlpha
+
+CGPROGRAM
+#pragma vertex vert
+#pragma fragment frag
+#pragma require compute
+#pragma use_dxc
+#include "UnityCG.cginc"
+
+struct v2f
+{
+    float4 vertex : SV_POSITION;
+};
+
+v2f vert (uint vtxID : SV_VertexID)
+{
+    v2f o;
+    float2 quadPos = float2(vtxID&1, (vtxID>>1)&1) * 4.0 - 1.0;
+	o.vertex = float4(quadPos, 1, 1);
+    return o;
+}
+
+Texture2D _GaussianSplatRT;
+
+half4 frag (v2f i) : SV_Target
+{
+    half4 col = _GaussianSplatRT.Load(int3(i.vertex.xy, 0));
+    col.rgb = GammaToLinearSpace(col.rgb);
+    col.a = saturate(col.a * 1.5);
+    return col;
+}
+ENDCG
+        }
+    }
+}