public object Backup()
{
Profiler.BeginSample("VFXGraph.Backup");
var dependencies = new HashSet <ScriptableObject>();
dependencies.Add(this);
CollectDependencies(dependencies);
var result = VFXMemorySerializer.StoreObjectsToByteArray(dependencies.ToArray(), CompressionLevel.Fastest);
Profiler.EndSample();
return(result);
}
public object Backup()
{
Profiler.BeginSample("VFXGraph.Backup");
var dependencies = new HashSet <ScriptableObject>();
dependencies.Add(this);
CollectDependencies(dependencies);
// This is a guard where dependencies that couldnt be deserialized (because script is missing for instance) are removed from the list
// because else StoreObjectsToByteArray is crashing
// TODO Fix that
var safeDependencies = dependencies.Where(o => o != null);
var result = VFXMemorySerializer.StoreObjectsToByteArray(safeDependencies.ToArray(), CompressionLevel.Fastest);
Profiler.EndSample();
return(result);
}
static void OnCompileResource(VisualEffectResource resource)
{
if (resource != null)
{
VFXGraph graph = resource.graph as VFXGraph;
if (graph != null)
{
if (!graph.sanitized)
{
//Early return, the reimport will be forced with the next OnPostprocessAllAssets after Sanitize
resource.ClearRuntimeData();
}
else
{
//Workaround, use backup system to prevent any modification of the graph during compilation
//The responsible of this unexpected change is PrepareSubgraphs => RecurseSubgraphRecreateCopy => ResyncSlots
//It will let the VFXGraph in a really bad state after compilation.
graph = resource.GetOrCreateGraph();
var dependencies = new HashSet <ScriptableObject>();
dependencies.Add(graph);
graph.CollectDependencies(dependencies);
var backup = VFXMemorySerializer.StoreObjectsToByteArray(dependencies.ToArray(), CompressionLevel.None);
graph.CompileForImport();
VFXMemorySerializer.ExtractObjects(backup, false);
//The backup during undo/redo is actually calling UnknownChange after ExtractObjects
//You have to avoid because it will call ResyncSlot
}
}
else
{
Debug.LogError("OnCompileResource error - VisualEffectResource without graph");
}
}
}
