basic marching cubes working

res/shaders/Render.slang

@@ -1,32 +1,32 @@
+import Common;
 import FluidGridData;
 
 struct Params
 {
-    FluidGridData<float> density;
+    StructuredBuffer<float> vertexBuffer;
+    StructuredBuffer<uint> indexBuffer;
 };
 ParameterBlock<Params> params;
 
 struct VertexOut
 {
     float4 position : SV_Position;
-    float2 uv : UV;
 };
 
 [shader("vertex")]
 VertexOut vertexMain(uint vertexId : SV_VertexID)
 {
     VertexOut output;
-    output.uv = float2((vertexId << 1) & 2, vertexId & 2);
-    output.position = float4(output.uv * 2.0f - 1.0f, 0, 1);
+    uint index = params.indexBuffer[vertexId];
+    float3 vertex = float3(params.vertexBuffer[index * 3 + 0],
+                           params.vertexBuffer[index * 3 + 1],
+                           params.vertexBuffer[index * 3 + 2]) * 5;
+    output.position = mul(pViewParams.viewProjectionMatrix, float4(vertex, 1));
     return output;
 }
 
 [shader("pixel")]
 float4 fragmentMain(VertexOut input) : SV_Target
 {
-    FluidGridData<float> density = params.density;
-    int x = int(input.uv.x * (gridSize.x - 2) + 1);
-    int y = int(input.uv.y * (gridSize.y - 2) + 1);
-    float d = density[x, y, 1];
-    return float4(d, d, d, 1);
+    return float4(0, 0, 1, 1);
 }