Implement Burst compiled importer

Assets/vfx-graph-gs/Main.unity

@@ -133,6 +133,10 @@ PrefabInstance:
       objectReference: {fileID: 0}
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       propertyPath: m_PropertySheet.m_Float.m_Array.Array.size
+      value: 2
+      objectReference: {fileID: 0}
+    - target: {fileID: -973084862543737302, guid: 25c54d8c074f08447ab1c822a6a052fa, type: 3}
+      propertyPath: m_PropertySheet.m_Gradient.m_Array.Array.size
       value: 1
       objectReference: {fileID: 0}
     - target: {fileID: -973084862543737302, guid: 25c54d8c074f08447ab1c822a6a052fa, type: 3}
@@ -147,6 +151,10 @@ PrefabInstance:
       propertyPath: m_PropertySheet.m_Float.m_Array.Array.data[0].m_Name
       value: ScaleMultiplier
       objectReference: {fileID: 0}
+    - target: {fileID: -973084862543737302, guid: 25c54d8c074f08447ab1c822a6a052fa, type: 3}
+      propertyPath: m_PropertySheet.m_Float.m_Array.Array.data[1].m_Name
+      value: OpacityMultiplier
+      objectReference: {fileID: 0}
     - target: {fileID: -973084862543737302, guid: 25c54d8c074f08447ab1c822a6a052fa, type: 3}
       propertyPath: m_PropertySheet.m_Uint.m_Array.Array.data[0].m_Value
       value: 200000
@@ -157,7 +165,15 @@ PrefabInstance:
       objectReference: {fileID: 0}
     - target: {fileID: -973084862543737302, guid: 25c54d8c074f08447ab1c822a6a052fa, type: 3}
       propertyPath: m_PropertySheet.m_Float.m_Array.Array.data[0].m_Value
-      value: 32
+      value: 64
+      objectReference: {fileID: 0}
+    - target: {fileID: -973084862543737302, guid: 25c54d8c074f08447ab1c822a6a052fa, type: 3}
+      propertyPath: m_PropertySheet.m_Float.m_Array.Array.data[1].m_Value
+      value: 1
+      objectReference: {fileID: 0}
+    - target: {fileID: -973084862543737302, guid: 25c54d8c074f08447ab1c822a6a052fa, type: 3}
+      propertyPath: m_PropertySheet.m_Gradient.m_Array.Array.data[0].m_Name
+      value: GradientScale
       objectReference: {fileID: 0}
     - target: {fileID: -973084862543737302, guid: 25c54d8c074f08447ab1c822a6a052fa, type: 3}
       propertyPath: m_PropertySheet.m_Uint.m_Array.Array.data[0].m_Overridden
@@ -171,6 +187,62 @@ PrefabInstance:
       propertyPath: m_PropertySheet.m_Float.m_Array.Array.data[0].m_Overridden
       value: 1
       objectReference: {fileID: 0}
+    - target: {fileID: -973084862543737302, guid: 25c54d8c074f08447ab1c822a6a052fa, type: 3}
+      propertyPath: m_PropertySheet.m_Float.m_Array.Array.data[1].m_Overridden
+      value: 1
+      objectReference: {fileID: 0}
+    - target: {fileID: -973084862543737302, guid: 25c54d8c074f08447ab1c822a6a052fa, type: 3}
+      propertyPath: m_PropertySheet.m_Gradient.m_Array.Array.data[0].m_Overridden
+      value: 1
+      objectReference: {fileID: 0}
+    - target: {fileID: -973084862543737302, guid: 25c54d8c074f08447ab1c822a6a052fa, type: 3}
+      propertyPath: m_PropertySheet.m_Gradient.m_Array.Array.data[0].m_Value.atime0
+      value: 0
+      objectReference: {fileID: 0}
+    - target: {fileID: -973084862543737302, guid: 25c54d8c074f08447ab1c822a6a052fa, type: 3}
+      propertyPath: m_PropertySheet.m_Gradient.m_Array.Array.data[0].m_Value.atime1
+      value: 65535
+      objectReference: {fileID: 0}
+    - target: {fileID: -973084862543737302, guid: 25c54d8c074f08447ab1c822a6a052fa, type: 3}
+      propertyPath: m_PropertySheet.m_Gradient.m_Array.Array.data[0].m_Value.ctime0
+      value: 0
+      objectReference: {fileID: 0}
+    - target: {fileID: -973084862543737302, guid: 25c54d8c074f08447ab1c822a6a052fa, type: 3}
+      propertyPath: m_PropertySheet.m_Gradient.m_Array.Array.data[0].m_Value.ctime1
+      value: 65535
+      objectReference: {fileID: 0}
+    - target: {fileID: -973084862543737302, guid: 25c54d8c074f08447ab1c822a6a052fa, type: 3}
+      propertyPath: m_PropertySheet.m_Gradient.m_Array.Array.data[0].m_Value.key1.a
+      value: 1
+      objectReference: {fileID: 0}
+    - target: {fileID: -973084862543737302, guid: 25c54d8c074f08447ab1c822a6a052fa, type: 3}
+      propertyPath: m_PropertySheet.m_Gradient.m_Array.Array.data[0].m_Value.key1.b
+      value: 1
+      objectReference: {fileID: 0}
+    - target: {fileID: -973084862543737302, guid: 25c54d8c074f08447ab1c822a6a052fa, type: 3}
+      propertyPath: m_PropertySheet.m_Gradient.m_Array.Array.data[0].m_Value.key1.g
+      value: 1
+      objectReference: {fileID: 0}
+    - target: {fileID: -973084862543737302, guid: 25c54d8c074f08447ab1c822a6a052fa, type: 3}
+      propertyPath: m_PropertySheet.m_Gradient.m_Array.Array.data[0].m_Value.key1.r
+      value: 1
+      objectReference: {fileID: 0}
+    - target: {fileID: -973084862543737302, guid: 25c54d8c074f08447ab1c822a6a052fa, type: 3}
+      propertyPath: m_PropertySheet.m_Gradient.m_Array.Array.data[0].m_Value.m_Mode
+      value: 0
+      objectReference: {fileID: 0}
+    - target: {fileID: -973084862543737302, guid: 25c54d8c074f08447ab1c822a6a052fa, type: 3}
+      propertyPath: m_PropertySheet.m_Gradient.m_Array.Array.data[0].m_Value.m_ColorSpace
+      value: 1
+      objectReference: {fileID: 0}
+    - target: {fileID: -973084862543737302, guid: 25c54d8c074f08447ab1c822a6a052fa, type: 3}
+      propertyPath: m_PropertySheet.m_Gradient.m_Array.Array.data[0].m_Value.m_NumAlphaKeys
+      value: 2
+      objectReference: {fileID: 0}
+    - target: {fileID: -973084862543737302, guid: 25c54d8c074f08447ab1c822a6a052fa, type: 3}
+      propertyPath: m_PropertySheet.m_Gradient.m_Array.Array.data[0].m_Value.m_NumColorKeys
+      value: 2
+      objectReference: {fileID: 0}
     - target: {fileID: -774367247743995920, guid: 25c54d8c074f08447ab1c822a6a052fa, type: 3}
       propertyPath: m_Enabled
       value: 1

Assets/vfx-graph-gs/Scripts/SplatImporter.cs

@@ -287,8 +287,6 @@ namespace SplatVfx.Editor
                     splatData.RotationArray[totalElemsRead + i] = new quaternion(splatDataNative.rotation[i]);
                 }
 
-                // NativeArray<Vector3>.Copy(splatDataNative.position.Reinterpret<Vector3>(), 0, splatData.PositionArray, totalElemsRead, numElemsRead);
-
                 totalElemsRead += numElemsRead;
                 Debug.Log($"Current Elements Read: {totalElemsRead}");
             }
@@ -341,7 +339,7 @@ namespace SplatVfx.Editor
                         splatDataNative.sh[elemIx + j] = chunkBytes[start + headerData.ElementByteOffsets[(int)DataEnum.f_rest_0 + j]];
                     }
 
-                    float opacity = chunkBytes[start + headerData.ElementByteOffsets[(int)DataEnum.opacity]];
+                    float opacity = chunkBytes.ReinterpretLoad<float>(start + headerData.ElementByteOffsets[(int)DataEnum.opacity]);
                     opacity = 1 / (1 + math.exp(-opacity));
                     splatDataNative.opacity[elemIx] = opacity;
 
@@ -365,35 +363,6 @@ namespace SplatVfx.Editor
             }
         }
 
-        // private struct ReadChunkJob
-
-        /***********************************************************************
-        ImportData function
-        - Takes a HeaderData struct and file path string as input
-        - Following the JOB_SZ and the length of a single element's data
-          -- Computes how many bytes a single job can process
-          -- Reads them in chunks
-          -- As each chunk is read
-             --- Creates NativeArrays representing all the data points
-             --- Creates a ReadChunk Jobs to parse the data
-        - Once each Job is complete, begins copying the NativeArrays into a
-          newly created SplatData scriptable object
-        ***********************************************************************/
-
-        /***********************************************************************
-        ReadChunk Job
-        - This MUST be Burst compiled
-        - Takes in NativeArrays, the chunk's byte data, and the HeaderData 
-          struct
-        - It may be more efficient to place the NativeArrays inside a Burst
-          compiled struct
-        - Iterates through the byte data using the total length of a data point
-          as stored in HeaderData
-        - For each data point, reads the data points and stores them into the
-          appropriate NativeArray, referencing the byte offset table in
-          HeaderData to find their locations in the byte data
-        ***********************************************************************/
-
         SplatData ImportAsSplatData((string format, int num_element, List<(string, string)> properties) header_info, byte[] binaryData)
         {
             var splatData = ScriptableObject.CreateInstance<SplatData>();

Assets/vfx-graph-gs/SplatVFX.vfx

@@ -797,7 +797,7 @@ MonoBehaviour:
   m_UICollapsed: 0
   m_UISuperCollapsed: 0
   m_InputSlots:
-  - {fileID: 8926484042661618395}
+  - {fileID: 8926484042661619458}
   - {fileID: 8926484042661614618}
   m_OutputSlots: []
   m_Label: 
@@ -6171,7 +6171,9 @@ MonoBehaviour:
   - m_Id: 0
     linkedSlots:
     - outputSlot: {fileID: 8926484042661618390}
-      inputSlot: {fileID: 8926484042661618395}
+      inputSlot: {fileID: 0}
+    - outputSlot: {fileID: 8926484042661618390}
+      inputSlot: {fileID: 8926484042661619458}
     position: {x: 533, y: 1299}
     expandedSlots: []
     expanded: 1
@@ -6210,42 +6212,7 @@ MonoBehaviour:
         Culture=neutral, PublicKeyToken=null
   m_Direction: 1
   m_LinkedSlots:
-  - {fileID: 8926484042661618395}
+  - {fileID: 8926484042661619458}
---- !u!114 &8926484042661618395
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-  m_CorrespondingSourceObject: {fileID: 0}
-  m_PrefabInstance: {fileID: 0}
-  m_PrefabAsset: {fileID: 0}
-  m_GameObject: {fileID: 0}
-  m_Enabled: 1
-  m_EditorHideFlags: 0
-  m_Script: {fileID: 11500000, guid: 76f778ff57c4e8145b9681fe3268d8e9, type: 3}
-  m_Name: 
-  m_EditorClassIdentifier: Unity.VisualEffectGraph.Editor::UnityEditor.VFX.VFXSlotGradient
-  m_UIIgnoredErrors: []
-  m_Parent: {fileID: 0}
-  m_Children: []
-  m_UIPosition: {x: 0, y: 0}
-  m_UICollapsed: 1
-  m_UISuperCollapsed: 0
-  m_MasterSlot: {fileID: 8926484042661618395}
-  m_MasterData:
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-    m_Value:
-      m_Type:
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-          Culture=neutral, PublicKeyToken=null
-      m_SerializableObject: '{"colorKeys":[{"color":{"r":0.0,"g":0.0,"b":0.0,"a":1.0},"time":0.0},{"color":{"r":0.75,"g":0.15000000596046449,"b":0.0,"a":1.0},"time":0.3000076413154602},{"color":{"r":1.25,"g":0.5600000023841858,"b":0.11999999731779099,"a":1.0},"time":0.5000076293945313},{"color":{"r":3.5,"g":2.0,"b":0.5,"a":1.0},"time":0.7000076174736023},{"color":{"r":4.0,"g":3.5,"b":1.2000000476837159,"a":1.0},"time":0.9000076055526733},{"color":{"r":12.0,"g":10.0,"b":2.5,"a":1.0},"time":1.0}],"alphaKeys":[{"alpha":0.0,"time":0.0},{"alpha":1.0,"time":1.0}],"gradientMode":0}'
-    m_Space: -1
-  m_Property:
-    name: gradient
-    m_serializedType:
-      m_SerializableType: UnityEngine.Gradient, UnityEngine.CoreModule, Version=0.0.0.0,
-        Culture=neutral, PublicKeyToken=null
-  m_Direction: 0
-  m_LinkedSlots:
-  - {fileID: 8926484042661618390}
 --- !u!114 &8926484042661618746
 MonoBehaviour:
   m_ObjectHideFlags: 0
@@ -16782,3 +16749,38 @@ MonoBehaviour:
         PublicKeyToken=b77a5c561934e089
   m_Direction: 0
   m_LinkedSlots: []
+--- !u!114 &8926484042661619458
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+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 0}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: 76f778ff57c4e8145b9681fe3268d8e9, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: Unity.VisualEffectGraph.Editor::UnityEditor.VFX.VFXSlotGradient
+  m_UIIgnoredErrors: []
+  m_Parent: {fileID: 0}
+  m_Children: []
+  m_UIPosition: {x: 0, y: 0}
+  m_UICollapsed: 1
+  m_UISuperCollapsed: 0
+  m_MasterSlot: {fileID: 8926484042661619458}
+  m_MasterData:
+    m_Owner: {fileID: 8926484042661614617}
+    m_Value:
+      m_Type:
+        m_SerializableType: UnityEngine.Gradient, UnityEngine.CoreModule, Version=0.0.0.0,
+          Culture=neutral, PublicKeyToken=null
+      m_SerializableObject: '{"colorKeys":[{"color":{"r":0.0,"g":0.0,"b":0.0,"a":1.0},"time":0.0},{"color":{"r":0.75,"g":0.15000000596046449,"b":0.0,"a":1.0},"time":0.3000076413154602},{"color":{"r":1.25,"g":0.5600000023841858,"b":0.11999999731779099,"a":1.0},"time":0.5000076293945313},{"color":{"r":3.5,"g":2.0,"b":0.5,"a":1.0},"time":0.7000076174736023},{"color":{"r":4.0,"g":3.5,"b":1.2000000476837159,"a":1.0},"time":0.9000076055526733},{"color":{"r":12.0,"g":10.0,"b":2.5,"a":1.0},"time":1.0}],"alphaKeys":[{"alpha":0.0,"time":0.0},{"alpha":1.0,"time":1.0}],"gradientMode":0}'
+    m_Space: -1
+  m_Property:
+    name: gradient
+    m_serializedType:
+      m_SerializableType: UnityEngine.Gradient, UnityEngine.CoreModule, Version=0.0.0.0,
+        Culture=neutral, PublicKeyToken=null
+  m_Direction: 0
+  m_LinkedSlots:
+  - {fileID: 8926484042661618390}