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ScriptedImporterAttribute

Use the ScriptedImporter attribute to register a custom importer derived from ScriptedImporter with Unity's Asset import pipeline.
Read time 9 minutesLast updated 12 days ago

Definition

ScriptedImporterAttribute(int, string)

Use the ScriptedImporter attribute to register a custom importer derived from ScriptedImporter with Unity's Asset import pipeline.
public ScriptedImporterAttribute(int version, string ext)

Parameters

version

A number that is used by the import pipeline to detect new versions of the importer script. Changing this number will trigger a re-import of all assets matching the listed extensions.

Single file name extension (not including the leading period character) that the scripted importer handles.

Remarks

Always increment a scripted importer's version number whenever the script changes. This forces Assets imported with lower version numbers to be re-imported.
If the Editor's Auto Refresh preference is enabled, editing a script outside of the editor and saving it triggers a re-import of both the script and all Assets of the corresponding type. The following example declares an importer that handles files with extension
cb
and
cube
.
using UnityEngine;using UnityEditor.AssetImporters;[ScriptedImporter(1, new[] {"cb", "cube"})]public class CubeImporter : ScriptedImporter{ public override void OnImportAsset(AssetImportContext ctx) { // ... }}
The following example declares an importer that handles files with extension
sphere
. Its importQueueOffset parameter is set to 10, forcing assets with extension
sphere
to be imported after all other scripted importers that have an importQueueOffset of less than 10.
using UnityEngine;using UnityEditor.AssetImporters;[ScriptedImporter(1, "sphere", 10)]public class SphereImporter : ScriptedImporter{ public override void OnImportAsset(AssetImportContext ctx) { // ... }}
The following example declares an importer that handles files with the extension
fbb
and that can be used to import
fbx
files instead of Unity's default ModelImporter.
using UnityEngine;using UnityEditor.AssetImporters;[ScriptedImporter(1, new[] {"fbb"}, new[] {"fbx"})]public class CustomModelImporter : ScriptedImporter{ public override void OnImportAsset(AssetImportContext ctx) { // ... }}

ScriptedImporterAttribute(int, string, int)

Use the ScriptedImporter attribute to register a custom importer derived from ScriptedImporter with Unity's Asset import pipeline.
public ScriptedImporterAttribute(int version, string ext, int importQueueOffset)

Parameters

version

A number that is used by the import pipeline to detect new versions of the importer script. Changing this number will trigger a re-import of all assets matching the listed extensions.

Single file name extension (not including the leading period character) that the scripted importer handles.

importQueueOffset

Gives control over ordering of asset import based on types. Positive values delay the processing of source asset files while negative values place them earlier in the import process.

Remarks

Always increment a scripted importer's version number whenever the script changes. This forces Assets imported with lower version numbers to be re-imported.
If the Editor's Auto Refresh preference is enabled, editing a script outside of the editor and saving it triggers a re-import of both the script and all Assets of the corresponding type. The following example declares an importer that handles files with extension
cb
and
cube
.
using UnityEngine;using UnityEditor.AssetImporters;[ScriptedImporter(1, new[] {"cb", "cube"})]public class CubeImporter : ScriptedImporter{ public override void OnImportAsset(AssetImportContext ctx) { // ... }}
The following example declares an importer that handles files with extension
sphere
. Its importQueueOffset parameter is set to 10, forcing assets with extension
sphere
to be imported after all other scripted importers that have an importQueueOffset of less than 10.
using UnityEngine;using UnityEditor.AssetImporters;[ScriptedImporter(1, "sphere", 10)]public class SphereImporter : ScriptedImporter{ public override void OnImportAsset(AssetImportContext ctx) { // ... }}
The following example declares an importer that handles files with the extension
fbb
and that can be used to import
fbx
files instead of Unity's default ModelImporter.
using UnityEngine;using UnityEditor.AssetImporters;[ScriptedImporter(1, new[] {"fbb"}, new[] {"fbx"})]public class CustomModelImporter : ScriptedImporter{ public override void OnImportAsset(AssetImportContext ctx) { // ... }}

ScriptedImporterAttribute(int, string[])

Use the ScriptedImporter attribute to register a custom importer derived from ScriptedImporter with Unity's Asset import pipeline.
public ScriptedImporterAttribute(int version, string[] exts)

Parameters

version

A number that is used by the import pipeline to detect new versions of the importer script. Changing this number will trigger a re-import of all assets matching the listed extensions.

List of file name extensions (not including the leading period character) that the scripted importer handles.

Remarks

Always increment a scripted importer's version number whenever the script changes. This forces Assets imported with lower version numbers to be re-imported.
If the Editor's Auto Refresh preference is enabled, editing a script outside of the editor and saving it triggers a re-import of both the script and all Assets of the corresponding type. The following example declares an importer that handles files with extension
cb
and
cube
.
using UnityEngine;using UnityEditor.AssetImporters;[ScriptedImporter(1, new[] {"cb", "cube"})]public class CubeImporter : ScriptedImporter{ public override void OnImportAsset(AssetImportContext ctx) { // ... }}
The following example declares an importer that handles files with extension
sphere
. Its importQueueOffset parameter is set to 10, forcing assets with extension
sphere
to be imported after all other scripted importers that have an importQueueOffset of less than 10.
using UnityEngine;using UnityEditor.AssetImporters;[ScriptedImporter(1, "sphere", 10)]public class SphereImporter : ScriptedImporter{ public override void OnImportAsset(AssetImportContext ctx) { // ... }}
The following example declares an importer that handles files with the extension
fbb
and that can be used to import
fbx
files instead of Unity's default ModelImporter.
using UnityEngine;using UnityEditor.AssetImporters;[ScriptedImporter(1, new[] {"fbb"}, new[] {"fbx"})]public class CustomModelImporter : ScriptedImporter{ public override void OnImportAsset(AssetImportContext ctx) { // ... }}

ScriptedImporterAttribute(int, string[], string[])

Use the ScriptedImporter attribute to register a custom importer derived from ScriptedImporter with Unity's Asset import pipeline.
public ScriptedImporterAttribute(int version, string[] exts, string[] overrideExts)

Parameters

version

A number that is used by the import pipeline to detect new versions of the importer script. Changing this number will trigger a re-import of all assets matching the listed extensions.

List of file name extensions (not including the leading period character) that the scripted importer handles.

overrideExts

List of file name extensions (not including the leading period character) that the scripted importer can handle in addition to the default file name extension(s).

Remarks

Always increment a scripted importer's version number whenever the script changes. This forces Assets imported with lower version numbers to be re-imported.
If the Editor's Auto Refresh preference is enabled, editing a script outside of the editor and saving it triggers a re-import of both the script and all Assets of the corresponding type. The following example declares an importer that handles files with extension
cb
and
cube
.
using UnityEngine;using UnityEditor.AssetImporters;[ScriptedImporter(1, new[] {"cb", "cube"})]public class CubeImporter : ScriptedImporter{ public override void OnImportAsset(AssetImportContext ctx) { // ... }}
The following example declares an importer that handles files with extension
sphere
. Its importQueueOffset parameter is set to 10, forcing assets with extension
sphere
to be imported after all other scripted importers that have an importQueueOffset of less than 10.
using UnityEngine;using UnityEditor.AssetImporters;[ScriptedImporter(1, "sphere", 10)]public class SphereImporter : ScriptedImporter{ public override void OnImportAsset(AssetImportContext ctx) { // ... }}
The following example declares an importer that handles files with the extension
fbb
and that can be used to import
fbx
files instead of Unity's default ModelImporter.
using UnityEngine;using UnityEditor.AssetImporters;[ScriptedImporter(1, new[] {"fbb"}, new[] {"fbx"})]public class CustomModelImporter : ScriptedImporter{ public override void OnImportAsset(AssetImportContext ctx) { // ... }}

ScriptedImporterAttribute(int, string[], int)

Use the ScriptedImporter attribute to register a custom importer derived from ScriptedImporter with Unity's Asset import pipeline.
public ScriptedImporterAttribute(int version, string[] exts, int importQueueOffset)

Parameters

version

A number that is used by the import pipeline to detect new versions of the importer script. Changing this number will trigger a re-import of all assets matching the listed extensions.

List of file name extensions (not including the leading period character) that the scripted importer handles.

importQueueOffset

Gives control over ordering of asset import based on types. Positive values delay the processing of source asset files while negative values place them earlier in the import process.

Remarks

Always increment a scripted importer's version number whenever the script changes. This forces Assets imported with lower version numbers to be re-imported.
If the Editor's Auto Refresh preference is enabled, editing a script outside of the editor and saving it triggers a re-import of both the script and all Assets of the corresponding type. The following example declares an importer that handles files with extension
cb
and
cube
.
using UnityEngine;using UnityEditor.AssetImporters;[ScriptedImporter(1, new[] {"cb", "cube"})]public class CubeImporter : ScriptedImporter{ public override void OnImportAsset(AssetImportContext ctx) { // ... }}
The following example declares an importer that handles files with extension
sphere
. Its importQueueOffset parameter is set to 10, forcing assets with extension
sphere
to be imported after all other scripted importers that have an importQueueOffset of less than 10.
using UnityEngine;using UnityEditor.AssetImporters;[ScriptedImporter(1, "sphere", 10)]public class SphereImporter : ScriptedImporter{ public override void OnImportAsset(AssetImportContext ctx) { // ... }}
The following example declares an importer that handles files with the extension
fbb
and that can be used to import
fbx
files instead of Unity's default ModelImporter.
using UnityEngine;using UnityEditor.AssetImporters;[ScriptedImporter(1, new[] {"fbb"}, new[] {"fbx"})]public class CustomModelImporter : ScriptedImporter{ public override void OnImportAsset(AssetImportContext ctx) { // ... }}

ScriptedImporterAttribute(int, string[], string[], int)

Use the ScriptedImporter attribute to register a custom importer derived from ScriptedImporter with Unity's Asset import pipeline.
public ScriptedImporterAttribute(int version, string[] exts, string[] overrideExts, int importQueueOffset)

Parameters

version

A number that is used by the import pipeline to detect new versions of the importer script. Changing this number will trigger a re-import of all assets matching the listed extensions.

List of file name extensions (not including the leading period character) that the scripted importer handles.

overrideExts

List of file name extensions (not including the leading period character) that the scripted importer can handle in addition to the default file name extension(s).

importQueueOffset

Gives control over ordering of asset import based on types. Positive values delay the processing of source asset files while negative values place them earlier in the import process.

Remarks

Always increment a scripted importer's version number whenever the script changes. This forces Assets imported with lower version numbers to be re-imported.
If the Editor's Auto Refresh preference is enabled, editing a script outside of the editor and saving it triggers a re-import of both the script and all Assets of the corresponding type. The following example declares an importer that handles files with extension
cb
and
cube
.
using UnityEngine;using UnityEditor.AssetImporters;[ScriptedImporter(1, new[] {"cb", "cube"})]public class CubeImporter : ScriptedImporter{ public override void OnImportAsset(AssetImportContext ctx) { // ... }}
The following example declares an importer that handles files with extension
sphere
. Its importQueueOffset parameter is set to 10, forcing assets with extension
sphere
to be imported after all other scripted importers that have an importQueueOffset of less than 10.
using UnityEngine;using UnityEditor.AssetImporters;[ScriptedImporter(1, "sphere", 10)]public class SphereImporter : ScriptedImporter{ public override void OnImportAsset(AssetImportContext ctx) { // ... }}
The following example declares an importer that handles files with the extension
fbb
and that can be used to import
fbx
files instead of Unity's default ModelImporter.
using UnityEngine;using UnityEditor.AssetImporters;[ScriptedImporter(1, new[] {"fbb"}, new[] {"fbx"})]public class CustomModelImporter : ScriptedImporter{ public override void OnImportAsset(AssetImportContext ctx) { // ... }}