chore: sync workspace state

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

@@ -0,0 +1,65 @@
+// SPDX-License-Identifier: MIT
+Shader "Gaussian Splatting/Debug/Render Points"
+{
+    SubShader
+    {
+        Tags { "RenderType"="Transparent" "Queue"="Transparent" }
+
+        Pass
+        {
+            ZWrite On
+            Cull Off
+            
+CGPROGRAM
+#pragma vertex vert
+#pragma fragment frag
+#pragma require compute
+#pragma use_dxc
+
+#include "GaussianSplatting.hlsl"
+
+struct v2f
+{
+    half3 color : TEXCOORD0;
+    float4 vertex : SV_POSITION;
+};
+
+float _SplatSize;
+bool _DisplayIndex;
+int _SplatCount;
+
+v2f vert (uint vtxID : SV_VertexID, uint instID : SV_InstanceID)
+{
+    v2f o;
+    uint splatIndex = instID;
+
+    SplatData splat = LoadSplatData(splatIndex);
+
+    float3 centerWorldPos = splat.pos;
+    centerWorldPos = mul(unity_ObjectToWorld, float4(centerWorldPos,1)).xyz;
+
+    float4 centerClipPos = mul(UNITY_MATRIX_VP, float4(centerWorldPos, 1));
+
+    o.vertex = centerClipPos;
+	uint idx = vtxID;
+    float2 quadPos = float2(idx&1, (idx>>1)&1) * 2.0 - 1.0;
+    o.vertex.xy += (quadPos * _SplatSize / _ScreenParams.xy) * o.vertex.w;
+
+    o.color.rgb = saturate(splat.sh.col);
+    if (_DisplayIndex)
+    {
+        o.color.r = frac((float)splatIndex / (float)_SplatCount * 100);
+        o.color.g = frac((float)splatIndex / (float)_SplatCount * 10);
+        o.color.b = (float)splatIndex / (float)_SplatCount;
+    }
+    return o;
+}
+
+half4 frag (v2f i) : SV_Target
+{
+    return half4(i.color.rgb, 1);
+}
+ENDCG
+        }
+    }
+}