public virtual bool build( bool reload_asset, bool unload_asset_first,
bool serialization_recovery_only,
bool force_reconnect,
bool is_duplication,
bool cook_downstream_assets,
bool use_delay_for_progress_bar )
{
// We can only build or do anything if we can link to our libraries.
#if !( UNITY_STANDALONE_WIN || UNITY_STANDALONE_OSX || ( UNITY_METRO && UNITY_EDITOR ) )
return false;
#pragma warning disable 0162
#endif // !( UNITY_STANDALONE_WIN || UNITY_STANDALONE_OSX || ( UNITY_METRO && UNITY_EDITOR ) )
if ( !HoudiniHost.isInstallationOk() )
return false;
if ( !prEnableCooking )
return false;
if ( isPrefabInstance() )
processParentPrefab();
// Run post-cook hook.
foreach ( var asset_hook in prAssetHooks )
asset_hook.preCook( this );
HoudiniProgressBar progress_bar = new HoudiniProgressBar();
progress_bar.prUseDelay = use_delay_for_progress_bar;
progress_bar.prAsset = this;
try
{
progress_bar.prStartTime = System.DateTime.Now;
bool is_first_time_build = false;
// restore asset id and asset validation id from the backup whenever
// reverting a prefab instance
bool is_reverting_prefab_instance = isRevertingPrefabInstance();
if ( is_reverting_prefab_instance )
{
prAssetId = prBackupAssetId;
prAssetValidationId = prBackupAssetValidationId;
}
if ( reload_asset )
{
if ( unload_asset_first )
{
// There's no reason to abort the whole rebuild process because we can't unload
// the asset first as that would leave the user with no options other than
// to delete this HAPI asset and create a new one for this OTL.
try
{
HoudiniHost.destroyAsset( prAssetId );
}
catch ( HoudiniError ) {}
// Once an asset is unloaded its id will is obviously no longer valid, so reset it here.
prAssetId = -1;
// Need to reset the parms as well.
prParms.reset();
}
try
{
int asset_id = 0;
if ( prAssetId < 0 )
is_first_time_build = true;
if ( unload_asset_first )
asset_id = buildCreateAsset( progress_bar );
else
asset_id = prAssetId;
// We need to update the prAssetId in case the cook is aborted/fails
// and we need to clean up (unload the asset) in the catch.
prAssetId = asset_id;
prAssetInfo = HoudiniHost.getAssetInfo( asset_id );
HAPI_NodeInfo node_info = HoudiniHost.getNodeInfo( prAssetInfo.nodeId );
if ( reload_asset )
Debug.Log(
"Houdini Engine: Asset Loaded - ID: " + prAssetInfo.id + "\n" +
" Full Name: " + prAssetInfo.fullOpName + "\n" +
" Version: " + prAssetInfo.version + "\n" +
" Unique Node Id: " + node_info.uniqueHoudiniNodeId + "\n" +
" Internal Node Path: " + node_info.internalNodePath + "\n" +
" Asset Library File: " + prAssetInfo.filePath + "\n" );
}
catch ( HoudiniError error )
{
Debug.LogError( "Asset not loaded: " + error.ToString() );
// Nothing to build since the load failed.
// Try to unload the asset so it doesn't dangle.
if ( is_first_time_build )
{
try
{
HoudiniHost.destroyAsset( prAssetId );
}
catch ( HoudiniError ) {}
}
// Clean up.
reset();
// If in play mode, disable live cooks.
#if UNITY_EDITOR
if ( EditorApplication.isPlaying )
#endif // UNITY_EDITOR
{
prPlaymodePerFrameCooking = false;
}
return false; // false for failed :(
}
}
prAssetInfo = HoudiniHost.getAssetInfo( prAssetId );
// For convenience we copy some asset info properties locally (since they are constant anyway).
// More imporantly, structs are not serialized and therefore putting them into their own
// variables is required in order to maintain state between serialization cycles.
prAssetId = prAssetInfo.id;
prBackupAssetId = prAssetId;
prAssetValidationId = prAssetInfo.validationId;
prBackupAssetValidationId = prAssetValidationId;
prNodeId = prAssetInfo.nodeId;
prObjectNodeId = prAssetInfo.objectNodeId;
prObjectCount = prAssetInfo.objectCount;
prHandleCount = prAssetInfo.handleCount;
prAssetName = prAssetInfo.name;
prAssetOpName = prAssetInfo.fullOpName;
prAssetHelp = prAssetInfo.helpText;
prHAPIAssetType = prAssetInfo.type;
prTransformInputCount = prAssetInfo.transformInputCount;
prGeoInputCount = prAssetInfo.geoInputCount;
#if UNITY_EDITOR
if ( isPrefab() )
{
string prefab_path = AssetDatabase.GetAssetPath( GetInstanceID() );
HoudiniHost.myCleanUpPrefabAssets[ prefab_path ] = prAssetId;
}
#endif // UNITY_EDITOR
// Try to load presets.
if ( ( reload_asset && ( unload_asset_first || is_reverting_prefab_instance ) )
#if UNITY_EDITOR
// Only load presets during serialization recovery if we really need to.
// The only such case is when we made changes DURING playmode and Unity
// restores the parameter values from before going into playmode.
// We only save presets while NOT in playmode which means to restore
// the Houdini state to before playmode state we need to loadPreset()
// with the last saved preset. In all other cases, like going INTO
// playmode, we should avoid this step because loadPreset() WILL
// cause a cook regardless if the parameters have changed or not which
// is terrible for large assets.
|| ( serialization_recovery_only &&
!EditorApplication.isPlayingOrWillChangePlaymode &&
!prParms.prValuesEqualToHoudini )
#endif // UNITY_EDITOR
)
{
loadPreset();
progress_bar.statusCheckLoop();
// Transform may not have been saved as part of the presets so we have to rely
// on the serialized value.
if ( myLastLocalToWorld != Matrix4x4.zero && !isPrefab() )
{
// If this is a prefab instance being reverted we don't want to use the
// serialized value so don't change transform.
if ( !is_reverting_prefab_instance )
{
Matrix4x4 world_to_local = Matrix4x4.identity;
if ( transform.parent )
world_to_local = transform.parent.worldToLocalMatrix;
Matrix4x4 local = myLastLocalToWorld * world_to_local;
transform.localPosition = HoudiniAssetUtility.getPosition( local );
transform.localRotation = HoudiniAssetUtility.getQuaternion( local );
Vector3 scale = HoudiniAssetUtility.getScale( local );
if ( !( Mathf.Approximately( 0.0f, scale.x )
&& Mathf.Approximately( 0.0f, scale.y )
&& Mathf.Approximately( 0.0f, scale.z ) ) )
{
transform.localScale = HoudiniAssetUtility.getScale( local );
}
}
if ( prPushUnityTransformToHoudini )
{
pushAssetTransformToHoudini();
}
}
}
if ( reload_asset )
{
progress_bar.prCurrentValue = 0;
progress_bar.prTotal = prObjectCount + prHandleCount;
progress_bar.displayProgressBar();
myProgressBarJustUsed = true;
// Add input fields.
if ( is_first_time_build || !force_reconnect )
initAssetConnections();
// Clean up.
destroyChildren( transform );
prGameObjects = new GameObject[ prObjectCount ];
}
if ( reload_asset || serialization_recovery_only )
{
// Need to re-acquire all the params for all the child controls that have parms exposed.
prParms.getParameterValues();
foreach ( HoudiniParms parms in GetComponentsInChildren< HoudiniParms >() )
parms.getParameterValues();
// Custom work during a full build (custom to each subclass).
buildFullBuildCustomWork( ref progress_bar, is_duplication );
}
if ( !reload_asset && !serialization_recovery_only )
{
progress_bar.displayProgressBar();
updateParameters( progress_bar );
}
// Create local object info caches (transforms need to be stored in a parallel array).
if ( prObjects == null || prObjects.Length != prObjectCount )
prObjects = new HAPI_ObjectInfo[ prObjectCount ];
if ( prObjectTransforms == null || prObjectTransforms.Length != prObjectCount )
prObjectTransforms = new HAPI_Transform[ prObjectCount ];
// Refresh object info arrays as they are lost after serialization.
HoudiniAssetUtility.getArray1Id( prAssetId, HoudiniHost.getObjects, prObjects, prObjectCount );
HoudiniAssetUtility.getArray2Id( prAssetId, HAPI_RSTOrder.HAPI_SRT, HoudiniHost.getObjectTransforms,
prObjectTransforms, prObjectCount );
bool objects_need_recook = false;
if ( !serialization_recovery_only )
{
// Set asset's transform.
if ( prPushUnityTransformToHoudini )
HoudiniAssetUtility.getHoudiniTransformAndApply( prAssetId, prAssetName, transform );
progress_bar.prMessage = "Loading and composing objects...";
// Destroy/copy non-copiable but still serialized member data.
if ( is_duplication )
{
myAssetOTLUndoInfo = null;
if ( myGeoAttributeManagerMap != null )
{
myGeoAttributeManagerMap = myGeoAttributeManagerMap.copy();
myGeoAttributeManagerMap.name = prAssetName + "_GeoAttributeManagerMap";
}
if ( myPresetsMap != null )
{
myPresetsMap = myPresetsMap.clone();
myPresetsMap.name = prAssetName + "_PresetMap";
}
}
// Custom way to load objects (custom to each subclass).
objects_need_recook = buildCreateObjects( reload_asset, ref progress_bar );
// Process dependent assets.
if ( cook_downstream_assets )
processDependentAssets(
serialization_recovery_only,
force_reconnect,
is_duplication,
use_delay_for_progress_bar );
}
// This tells Unity that values have been overridden for this prefab instance
// (eg. asset id, validation id, node id, etc).
#if UNITY_EDITOR
if ( isPrefabInstance() )
PrefabUtility.RecordPrefabInstancePropertyModifications( this );
#endif // UNITY_EDITOR
// A bit of a hack (but not terrible). If we have presets for other child controls
// they set their presets by now so we need to rebuild with the new presets.
if ( objects_need_recook )
{
build(
false, // reload_asset
false, // unload_asset_first
false, // serializatin_recovery_only
false, // force_reconnect
false, // is_duplication
false, // cook_downstream_assets
true // use_delay_for_progress_bar
);
}
}
catch ( HoudiniErrorIgnorable ) {}
catch ( HoudiniErrorProgressCancelled error )
{
// If in play mode, disable live cooks.
#if UNITY_EDITOR
if ( EditorApplication.isPlaying )
#endif // UNITY_EDITOR
{
prPlaymodePerFrameCooking = false;
}
Debug.LogError( error.ToString() + "\nSource: " + error.Source );
}
catch ( HoudiniError error )
{
Debug.LogError( error.ToString() + "\nSource: " + error.Source );
}
catch ( System.Exception error )
{
Debug.LogError( error.ToString() + "\nSource: " + error.Source );
}
finally
{
progress_bar.clearProgressBar();
myProgressBarJustUsed = false;
// Run post-cook hook.
foreach ( var asset_hook in prAssetHooks )
asset_hook.postCook( this );
}
// We can only build or do anything if we can link to our libraries.
#if !( UNITY_STANDALONE_WIN || UNITY_STANDALONE_OSX || ( UNITY_METRO && UNITY_EDITOR ) )
#pragma warning restore 0162
#endif // !( UNITY_STANDALONE_WIN || UNITY_STANDALONE_OSX || ( UNITY_METRO && UNITY_EDITOR ) )
return true;
}
public void updateParameters( HoudiniProgressBar progress_bar )
{
// Update prefab instance after parameter change on prefab if needed
#if UNITY_EDITOR
if ( isPrefabInstance() && prUpdatePrefabInstanceParmNames.Count > 0 )
{
HoudiniAsset prefab_asset = getParentPrefabAsset();
foreach ( string parm_name in prUpdatePrefabInstanceParmNames )
{
try
{
HAPI_ParmInfo parm_info = prParms.findParm( parm_name );
// Do not apply changes from prefab in the following cases:
// Case 1: Parameter on prefab that has been changed is a
// transform parameter
// Case 2: Parameter on prefab that has been changed has been
// overridden on this asset
// Otherwise set the parameter change for this prefab
if ( parm_name != "r" &&
parm_name != "s" &&
parm_name != "t" &&
!prParms.isParmOverridden( parm_info.id ) )
{
// if the parameter is a string we need to manually
// get the string value from the prefab because the
// parameter strings are stored in a dictionary which
// is not serialized so the value isn't overridden
// automatically by the prefab value as it is done
// with float and int parameters
if ( parm_info.isString() && prefab_asset )
{
HAPI_ParmInfo prefab_parm_info = prefab_asset.prParms.findParm( parm_name );
string[] values = prefab_asset.prParms.getParmStrings( prefab_parm_info );
prParms.setParmStrings( parm_info, values );
}
prParms.setChangedParameterIntoHost( parm_info.id );
}
}
catch {}
}
prUpdatePrefabInstanceParmNames.Clear();
// Need to set prUpdatePrefabInstanceParmName back to empty on prefab if
// it hasn't been already. We do not set prefab to be dirty so that other
// prefab instances that still need this value will not be affected.
if ( prefab_asset && prefab_asset.prUpdatePrefabInstanceParmNames.Count > 0 )
{
prefab_asset.prUpdatePrefabInstanceParmNames.Clear();
}
}
#endif // UNITY_EDITOR
prParms.setChangedParametersIntoHost();
HoudiniHost.cookAsset( prAssetId, prSplitGeosByGroup, prImportTemplatedGeos );
progress_bar.statusCheckLoop();
myProgressBarJustUsed = true;
progress_bar.prTotal = prObjectCount;
prParms.getParameterValues();
}