private void cacheNumInstances()
{
var obj_idx = prAsset.findObjectByNodeId(prObjectId);
HAPI_ObjectInfo object_info = prAsset.prObjects[obj_idx];
// Get Detail info.
HAPI_GeoInfo geo_info = HoudiniHost.getDisplayGeoInfo(prObjectId);
if (geo_info.partCount == 0)
{
return;
}
HAPI_PartInfo part_info = HoudiniHost.getPartInfo(geo_info.nodeId, 0);
if (prAsset.prEnableLogging)
{
Debug.Log("Instancer #" + prObjectId + " (" + object_info.name + "): "
+ "points: " + part_info.pointCount);
}
if (part_info.pointCount > 65000)
{
throw new HoudiniError("Point count (" + part_info.pointCount + ") above limit (" + 65000 + ")!");
}
myNumInstances = part_info.pointCount;
}
private void getInstanceAndNameAttrs(out int[] instance_attr, out int[] name_attr)
{
instance_attr = new int[0];
name_attr = new int[0];
HAPI_GeoInfo geo_info = HoudiniHost.getDisplayGeoInfo(prObjectId);
HAPI_AttributeInfo instance_attr_info = new HAPI_AttributeInfo("instance");
Utility.getAttribute(
geo_info.nodeId, 0, "instance", ref instance_attr_info,
ref instance_attr, HoudiniHost.getAttributeStringData);
if (!instance_attr_info.exists)
{
return;
}
if (instance_attr_info.exists && instance_attr_info.owner != HAPI_AttributeOwner.HAPI_ATTROWNER_POINT)
{
throw new HoudiniErrorIgnorable("I only understand instance as point attributes!");
}
if (instance_attr_info.exists && instance_attr.Length != myNumInstances)
{
throw new HoudiniError(
"Unexpected instance_hint array length found for asset: " + prAsset.prAssetId + "!");
}
HAPI_AttributeInfo name_attr_info = new HAPI_AttributeInfo("name");
Utility.getAttribute(
geo_info.nodeId, 0, "name", ref name_attr_info,
ref name_attr, HoudiniHost.getAttributeStringData);
if (name_attr_info.exists && name_attr_info.owner != HAPI_AttributeOwner.HAPI_ATTROWNER_POINT)
{
throw new HoudiniErrorIgnorable("I only understand name as point attributes!");
}
if (name_attr_info.exists && name_attr.Length != myNumInstances)
{
throw new HoudiniError(
"Unexpected name array length found for asset: " + prAsset.prAssetId + "!");
}
}
public bool refresh(bool reload_asset, HAPI_ObjectInfo object_info)
{
bool needs_recook = false;
if (reload_asset)
{
for (int i = 0; i < myGeos.Count; ++i)
{
if (myGeos[i])
{
HoudiniAssetUtility.destroyGameObject(myGeos[i]);
}
}
myGeos.Clear();
}
if (reload_asset || object_info.haveGeosChanged)
{
// TODO: Add back support for templated geos and curve SOPs.
HAPI_GeoInfo geo_info = HoudiniHost.getDisplayGeoInfo(prObjectId);
object_info.geoCount = 1;
// Add new geos as needed.
while (myGeos.Count < object_info.geoCount)
{
myGeos.Add(createGeo(geo_info.nodeId));
}
// Remove stale geos.
while (myGeos.Count > object_info.geoCount)
{
HoudiniAssetUtility.destroyGameObject(myGeos[object_info.geoCount]);
myGeos.RemoveAt(object_info.geoCount);
}
// Refresh all geos.
for (int i = 0; i < myGeos.Count; ++i)
{
needs_recook |= myGeos[i].GetComponent <HoudiniGeoControl>().refresh(reload_asset);
}
}
return(needs_recook);
}
protected override bool buildCreateObjects(bool reload_asset, ref HoudiniProgressBar progress_bar)
{
try
{
prCurve.syncPointsWithParm();
HAPI_GeoInfo geo_info = HoudiniHost.getDisplayGeoInfo(prCurve.prControl.prAssetId);
HAPI_NodeInfo geo_node_info = HoudiniHost.getNodeInfo(geo_info.nodeId);
prCurve.createObject(geo_node_info.parentId, geo_info.nodeId);
HoudiniHost.repaint();
}
catch (HoudiniError)
{
// Per-object errors are not re-thrown so that the rest of the asset has a chance to load.
//Debug.LogWarning( error.ToString() );
}
return(false);
}
public void instanceObjects(HoudiniProgressBar progress_bar)
{
try
{
destroyChildren();
HAPI_ObjectInfo object_info = HoudiniHost.getObjectInfo(prObjectId);
// Get Detail info.
HAPI_GeoInfo geo_info = HoudiniHost.getDisplayGeoInfo(prObjectId);
if (geo_info.partCount == 0)
{
return;
}
cacheNumInstances();
HAPI_Transform[] instance_transforms = new HAPI_Transform[myNumInstances];
Utility.getArray2Id(
geo_info.nodeId, HAPI_RSTOrder.HAPI_SRT,
HoudiniHost.getInstanceTransforms, instance_transforms, myNumInstances);
// Get scale point attributes.
HAPI_AttributeInfo scale_attr_info = new HAPI_AttributeInfo("scale");
float[] scale_attr = new float[0];
Utility.getAttribute(
geo_info.nodeId, 0, "scale", ref scale_attr_info, ref scale_attr, HoudiniHost.getAttributeFloatData);
if (scale_attr_info.exists && scale_attr_info.owner != HAPI_AttributeOwner.HAPI_ATTROWNER_POINT)
{
throw new HoudiniErrorIgnorable("I only understand scale as point attributes!");
}
if (scale_attr_info.exists && scale_attr.Length != myNumInstances * 3)
{
throw new HoudiniError(
"Unexpected scale array length found for asset: " + prAsset.prAssetId + "!\n" +
"Expected length of: " + myNumInstances * 3 + " but given: " + scale_attr.Length);
}
HAPI_AttributeInfo script_attr_info = new HAPI_AttributeInfo("Unity_Script");
int[] script_attr = new int[0];
Utility.getAttribute(
geo_info.nodeId, 0, "Unity_Script", ref script_attr_info,
ref script_attr, HoudiniHost.getAttributeStringData);
if (script_attr_info.exists && script_attr_info.owner != HAPI_AttributeOwner.HAPI_ATTROWNER_POINT)
{
throw new HoudiniErrorIgnorable("I only understand Unity_Script as point attributes!");
}
if (script_attr_info.exists && script_attr.Length != myNumInstances)
{
throw new HoudiniError("Unexpected Unity_Script array length found for asset: " + prAsset.prAssetId + "!");
}
int[] instance_attr = null;
int[] name_attr = null;
getInstanceAndNameAttrs(out instance_attr, out name_attr);
progress_bar.prTotal = myNumInstances;
List <int> exclusion_list = new List <int>();
instanceOverriddenObjects(myNumInstances, exclusion_list);
List <string> unique_instantiated_names = new List <string>();
HoudiniInstancerPersistentData persistent_data = prPersistentData;
if (persistent_data.variationChoice.Count != myNumInstances)
{
if (myNumInstances > persistent_data.variationChoice.Count)
{
int difference = myNumInstances - persistent_data.variationChoice.Count;
for (int ii = 0; ii < difference; ii++)
{
persistent_data.variationChoice.Add(-1);
}
}
else
{
int difference = persistent_data.variationChoice.Count - myNumInstances;
persistent_data.variationChoice.RemoveRange(
persistent_data.variationChoice.Count - difference, difference);
}
}
bool liveTransformPropagationSetting = false;
bool syncAssetTransformSetting = false;
bool enableCooking = true;
for (int i = 0; i < myNumInstances; ++i)
{
if (exclusion_list.Contains(i))
{
continue;
}
GameObject obj_to_instance = null;
if (instance_attr.Length > 0 || name_attr.Length > 0)
{
if (name_attr.Length > 0)
{
string obj_name = HoudiniHost.getString(name_attr[i]);
int object_index = prAsset.findObjectByName(obj_name);
if (object_index >= 0)
{
obj_to_instance = prAsset.prGameObjects[object_index];
}
else
{
obj_to_instance = prAsset.findPartByName(obj_name, true);
}
if (obj_to_instance == null)
{
obj_to_instance = GameObject.Find(obj_name);
}
}
else
{
string instanceObjectPath = HoudiniHost.getString(instance_attr[i]);
string [] pathItems = instanceObjectPath.Split('/');
string instanceObjectName = pathItems[pathItems.Length - 1];
int objectIndex = prAsset.findObjectByName(instanceObjectName);
if (objectIndex >= 0)
{
obj_to_instance = prAsset.prGameObjects[objectIndex];
}
else
{
obj_to_instance = GameObject.Find(instanceObjectName);
}
}
if (obj_to_instance != null)
{
HoudiniAsset hapi_asset = obj_to_instance.GetComponent <HoudiniAsset>();
if (hapi_asset != null)
{
liveTransformPropagationSetting = hapi_asset.prTransformChangeTriggersCooks;
syncAssetTransformSetting = hapi_asset.prPushUnityTransformToHoudini;
enableCooking = hapi_asset.prEnableCooking;
hapi_asset.prTransformChangeTriggersCooks = false;
hapi_asset.prPushUnityTransformToHoudini = false;
hapi_asset.prEnableCooking = false;
}
}
}
else if (object_info.objectToInstanceId >= 0)
{
int object_to_instance_idx = prAsset.findObjectByNodeId(object_info.objectToInstanceId);
if (object_to_instance_idx >= 0)
{
obj_to_instance = prAsset.prGameObjects[object_to_instance_idx];
}
}
if (obj_to_instance != null)
{
// Set progress bar information.
progress_bar.prCurrentValue = i;
progress_bar.prMessage = "Instancing: " + obj_to_instance.name + " (" + i + " of " + myNumInstances + ")";
progress_bar.displayProgressBar();
if (!unique_instantiated_names.Contains(obj_to_instance.name))
{
unique_instantiated_names.Add(obj_to_instance.name);
}
Vector3 pos = new Vector3();
// Apply object transforms.
//
// Axis and Rotation conversions:
// Note that Houdini's X axis points in the opposite direction that Unity's does. Also, Houdini's
// rotation is right handed, whereas Unity is left handed. To account for this, we need to invert
// the x coordinate of the translation, and do the same for the rotations (except for the x rotation,
// which doesn't need to be flipped because the change in handedness AND direction of the left x axis
// causes a double negative - yeah, I know).
pos[0] = -instance_transforms[i].position[0];
pos[1] = instance_transforms[i].position[1];
pos[2] = instance_transforms[i].position[2];
Quaternion quat = new Quaternion(instance_transforms[i].rotationQuaternion[0],
instance_transforms[i].rotationQuaternion[1],
instance_transforms[i].rotationQuaternion[2],
instance_transforms[i].rotationQuaternion[3]);
Vector3 euler = quat.eulerAngles;
euler.y = -euler.y;
euler.z = -euler.z;
Vector3 scale = new Vector3(instance_transforms[i].scale[0],
instance_transforms[i].scale[1],
instance_transforms[i].scale[2]);
Matrix4x4 local_mat = new Matrix4x4();
local_mat.SetTRS(pos, Quaternion.Euler(euler), scale);
// TODO: Now this *should* be the transform.localToWorldMatrix
// but for some reason, after a scene load, we pick up compensating
// factors in the local transform that cancel out the transform on the
// asset. For now just use the asset's transform as the parent matrix.
Matrix4x4 parent_mat = prAsset.transform.localToWorldMatrix;
Matrix4x4 global_mat = parent_mat * local_mat;
euler = HoudiniAssetUtility.getQuaternion(global_mat).eulerAngles;
pos = HoudiniAssetUtility.getPosition(global_mat);
scale = HoudiniAssetUtility.getScale(global_mat);
//mat.SetTRS( pos,
string script_to_attach = "";
if (script_attr_info.exists)
{
script_to_attach = HoudiniHost.getString(script_attr[i]);
}
instanceObject(obj_to_instance,
pos,
euler,
i,
scale_attr_info.exists,
scale,
script_attr_info.exists,
script_to_attach);
HoudiniAsset hapi_asset = obj_to_instance.GetComponent <HoudiniAsset>();
if (hapi_asset != null)
{
hapi_asset.prTransformChangeTriggersCooks = liveTransformPropagationSetting;
hapi_asset.prPushUnityTransformToHoudini = syncAssetTransformSetting;
hapi_asset.prEnableCooking = enableCooking;
}
}
}
updateUniqueInstantiatedNames(unique_instantiated_names);
}
catch (HoudiniError error)
{
Debug.LogWarning(error.ToString());
return;
}
}
public void bakeAnimation(float curr_time, GameObject parent_object)
{
try
{
HAPI_GeoInfo geo_info = HoudiniHost.getDisplayGeoInfo(prObjectId);
HAPI_Transform[] instance_transforms = new HAPI_Transform[myNumInstances];
Utility.getArray2Id(
geo_info.nodeId, HAPI_RSTOrder.HAPI_SRT,
HoudiniHost.getInstanceTransforms, instance_transforms, myNumInstances);
Matrix4x4 parent_xform_inverse = Matrix4x4.identity;
if (parent_object != null)
{
parent_xform_inverse = parent_object.transform.localToWorldMatrix.inverse;
}
for (int ii = 0; ii < myNumInstances; ++ii)
{
Vector3 pos = new Vector3();
// Apply object transforms.
//
// Axis and Rotation conversions:
// Note that Houdini's X axis points in the opposite direction that Unity's does. Also, Houdini's
// rotation is right handed, whereas Unity is left handed. To account for this, we need to invert
// the x coordinate of the translation, and do the same for the rotations (except for the x rotation,
// which doesn't need to be flipped because the change in handedness AND direction of the left x axis
// causes a double negative - yeah, I know).
pos[0] = -instance_transforms[ii].position[0];
pos[1] = instance_transforms[ii].position[1];
pos[2] = instance_transforms[ii].position[2];
Quaternion quat = new Quaternion(instance_transforms[ii].rotationQuaternion[0],
instance_transforms[ii].rotationQuaternion[1],
instance_transforms[ii].rotationQuaternion[2],
instance_transforms[ii].rotationQuaternion[3]);
Vector3 euler = quat.eulerAngles;
euler.y = -euler.y;
euler.z = -euler.z;
quat = Quaternion.Euler(euler);
Vector3 scale = new Vector3(instance_transforms[ii].scale[0],
instance_transforms[ii].scale[1],
instance_transforms[ii].scale[2]);
if (parent_object != null)
{
Matrix4x4 world_mat = Matrix4x4.identity;
world_mat.SetTRS(pos, quat, scale);
Matrix4x4 local_mat = parent_xform_inverse * world_mat;
quat = HoudiniAssetUtility.getQuaternion(local_mat);
scale = HoudiniAssetUtility.getScale(local_mat);
pos = HoudiniAssetUtility.getPosition(local_mat);
}
HoudiniCurvesCollection curves = myCurvesCollection[ii];
HoudiniAssetUtility.addKeyToCurve(curr_time, pos[0], curves.tx);
HoudiniAssetUtility.addKeyToCurve(curr_time, pos[1], curves.ty);
HoudiniAssetUtility.addKeyToCurve(curr_time, pos[2], curves.tz);
HoudiniAssetUtility.addKeyToCurve(curr_time, quat.x, curves.qx);
HoudiniAssetUtility.addKeyToCurve(curr_time, quat.y, curves.qy);
HoudiniAssetUtility.addKeyToCurve(curr_time, quat.z, curves.qz);
HoudiniAssetUtility.addKeyToCurve(curr_time, quat.w, curves.qw);
HoudiniAssetUtility.addKeyToCurve(curr_time, scale.x, curves.sx);
HoudiniAssetUtility.addKeyToCurve(curr_time, scale.y, curves.sy);
HoudiniAssetUtility.addKeyToCurve(curr_time, scale.z, curves.sz);
}
}
catch (HoudiniError error)
{
Debug.LogWarning(error.ToString());
return;
}
}
public bool refresh(bool reload_asset, HAPI_ObjectInfo object_info)
{
bool needs_recook = false;
if (reload_asset)
{
for (int i = 0; i < myGeos.Count; ++i)
{
if (myGeos[i])
{
HoudiniAssetUtility.destroyGameObject(myGeos[i]);
}
}
myGeos.Clear();
}
if (reload_asset || object_info.haveGeosChanged)
{
// Get the GeoInfos of the display geo node
HAPI_GeoInfo display_geo_info = HoudiniHost.getDisplayGeoInfo(prObjectId);
int GeoCount = object_info.geoCount = 1;
// Add new geos as needed.
while (myGeos.Count < GeoCount)
{
myGeos.Add(createGeo(display_geo_info.nodeId));
}
int node_id = object_info.nodeId;
if (prAsset.prNodeInfo.type == HAPI_NodeType.HAPI_NODETYPE_SOP)
{
node_id = display_geo_info.nodeId;
}
// Look for editable nodes inside the network/the object
const bool recursive = true;
int[] editable_networks = HoudiniHost.getChildNodeList(
node_id,
(int)HAPI_NodeType.HAPI_NODETYPE_SOP,
(int)HAPI_NodeFlags.HAPI_NODEFLAGS_EDITABLE,
recursive);
// Add the editable nodes to it
for (int n = 0; n < editable_networks.Length; n++)
{
// The editable node has to be cooked first
HoudiniHost.cookNode(editable_networks[n]);
HAPI_GeoInfo editGeoInfo = HoudiniHost.getGeoInfo(editable_networks[n]);
myGeos.Add(createGeo(editGeoInfo.nodeId));
GeoCount++;
}
// Remove stale geos.
while (myGeos.Count > GeoCount)
{
HoudiniAssetUtility.destroyGameObject(myGeos[GeoCount]);
myGeos.RemoveAt(GeoCount);
}
// Refresh all geos.
for (int i = 0; i < myGeos.Count; ++i)
{
needs_recook |= myGeos[i].GetComponent <HoudiniGeoControl>().refresh(reload_asset);
}
}
return(needs_recook);
}
