Implemented prepare (reconstruct and dilate) pass

Runtime/FrameInterpolation/FrameInterpolationPass.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Runtime.InteropServices;
 using UnityEngine;
 using UnityEngine.Profiling;
 using UnityEngine.Rendering;
@@ -15,6 +16,8 @@ namespace FidelityFX.FrameGen
         protected int KernelIndex;
         
         protected CustomSampler Sampler;
+
+        protected bool AsyncSupported => (ContextDescription.flags & FrameInterpolation.InitializationFlags.EnableAsyncSupport) == FrameInterpolation.InitializationFlags.EnableAsyncSupport;
         
         protected FrameInterpolationPass(FrameInterpolation.ContextDescription contextDescription, FrameInterpolationResources resources, ComputeBuffer constants)
         {
@@ -72,7 +75,22 @@ namespace FidelityFX.FrameGen
 
         public void ScheduleDispatch(CommandBuffer commandBuffer, FrameInterpolation.PrepareDescription prepareParams, int frameIndex, int dispatchX, int dispatchY, int dispatchZ)
         {
+            int doubleBufferId = AsyncSupported ? frameIndex : 0;
+            
             commandBuffer.BeginSample(Sampler);
+
+            ref var mvs = ref prepareParams.motionVectors;
+            ref var depth = ref prepareParams.depth;
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvInputMotionVectors, mvs.RenderTarget, mvs.MipLevel, mvs.SubElement);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvInputDepth, depth.RenderTarget, depth.MipLevel, depth.SubElement);
+
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.UavReconstructedDepthPreviousFrame, Resources.ReconstructedDepth[doubleBufferId]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.UavDilatedMotionVectors, Resources.DilatedMotionVectors[doubleBufferId]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.UavDilatedDepth, Resources.DilatedDepth[doubleBufferId]);
+            
+            commandBuffer.SetComputeConstantBufferParam(ComputeShader, FrameInterpolationShaderIDs.CbFrameInterpolation, Constants, 0, Marshal.SizeOf<FrameInterpolation.Constants>());
+            
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, dispatchZ);
             
             commandBuffer.EndSample(Sampler);
         }