Custom file importer

Editor
#1

Greetings! I am looking to figure out how to script an importer for custom file types. I am not seeing anything in the documentation on this or anything on the import process pipeline. I found the " ImportFileEntry" and " AssetImportEntry" classes but I have not been able to figure out how to use these. Any help would be appreciated :slight_smile:

#2

You might want to take a look here:

You could code your own libraries for anything and then link to those directly.

#3

Thank you for the quick response! I don’t think this is quiet what I am looking for though… At least not yet. I’m coming from Unity and what I am used to is an asset processor type class. So far I have managed to get most of the way there by making a ‘Plugin’ and manually adding a delegate to the ‘ImportFileEntry.FileTypes’ dictionary to return a custom ‘ImportFileEntry’ then processing from there. It appears to work but I am not sure if this is the correct method?

Examples:


public class CustomImportEntry : AssetImportEntry
 {
        public  CustomImportEntry(ref Request request) : base(ref request)
        {
        }

        public override bool Import()
        {
            // do stuff
            return true;
        }      
    }


 public class CustomImporterPlugin : EditorPlugin
    {

        const string _fileExt = "customExtension";

        private static ImportFileEntry ImportCustomAsset(ref Request request)
        {
            var importEntry = new CustomImportEntry(ref request);
            return importEntry;
        }

        public override void InitializeEditor()
        {
            var fileTypes = FlaxEditor.Content.Import.ImportFileEntry.FileTypes;
            if (fileTypes.ContainsKey(_fileExt) is false)
            {
                fileTypes.Add(_fileExt, ImportCustomAsset);
            }

            base.InitializeEditor();          
        }

        public override void DeinitializeEditor()
        {
            var fileTypes = FlaxEditor.Content.Import.ImportFileEntry.FileTypes;
            fileTypes.Remove(_fileExt);
            base.DeinitializeEditor();
        }
    }
#4

I have implemented custom file importers for the RmlUi plugin here as a reference: https://github.com/GoaLitiuM/RmlUi/blob/master/Source/RmlUi/RmlUiImport.cs