/**
* This method retuns the bone tracks for animation for blender version 2.50 and higher.
*
* @param actionStructure the structure containing the tracks
* @param blenderContext the blender context
* @return a list of tracks for the specified animation
* @throws BlenderFileException an exception is thrown when there are problems with the blend file
*/
private BlenderAction getTracks250(Structure actionStructure, BlenderContext blenderContext)
throws BlenderFileException {
LOGGER.log(Level.FINE, "Getting tracks!");
Structure groups = (Structure) actionStructure.getFieldValue("groups");
List<Structure> actionGroups = groups.evaluateListBase(); // bActionGroup
BlenderAction blenderAction =
new BlenderAction(actionStructure.getName(), blenderContext.getBlenderKey().getFps());
int lastFrame = 1;
for (Structure actionGroup : actionGroups) {
String name = actionGroup.getFieldValue("name").toString();
List<Structure> channels =
((Structure) actionGroup.getFieldValue("channels")).evaluateListBase();
BezierCurve[] bezierCurves = new BezierCurve[channels.size()];
int channelCounter = 0;
for (Structure c : channels) {
int type = this.getCurveType(c, blenderContext);
Pointer pBezTriple = (Pointer) c.getFieldValue("bezt");
List<Structure> bezTriples = pBezTriple.fetchData();
bezierCurves[channelCounter++] = new BezierCurve(type, bezTriples, 2);
}
Ipo ipo = new Ipo(bezierCurves, fixUpAxis, blenderContext.getBlenderVersion());
lastFrame = Math.max(lastFrame, ipo.getLastFrame());
blenderAction.featuresTracks.put(name, ipo);
}
blenderAction.stopFrame = lastFrame;
return blenderAction;
}
/**
* Constructor. Creates the basic set of bone's data.
*
* @param boneStructure the bone's structure
* @param parent bone's parent (null if the bone is the root bone)
* @param objectToArmatureMatrix object-to-armature transformation matrix
* @param bonesPoseChannels a map of pose channels for each bone OMA
* @param blenderContext the blender context
* @throws BlenderFileException an exception is thrown when problem with blender data reading
* occurs
*/
private BoneContext(
Structure boneStructure,
BoneContext parent,
Matrix4f objectToArmatureMatrix,
final Map<Long, Structure> bonesPoseChannels,
BlenderContext blenderContext)
throws BlenderFileException {
this.parent = parent;
this.boneStructure = boneStructure;
boneName = boneStructure.getFieldValue("name").toString();
ObjectHelper objectHelper = blenderContext.getHelper(ObjectHelper.class);
armatureMatrix = objectHelper.getMatrix(boneStructure, "arm_mat", true);
fixUpAxis = blenderContext.getBlenderKey().isFixUpAxis();
this.computeRestMatrix(objectToArmatureMatrix);
List<Structure> childbase =
((Structure) boneStructure.getFieldValue("childbase")).evaluateListBase(blenderContext);
for (Structure child : childbase) {
this.children.add(
new BoneContext(child, this, objectToArmatureMatrix, bonesPoseChannels, blenderContext));
}
poseChannel = bonesPoseChannels.get(boneStructure.getOldMemoryAddress());
blenderContext.setBoneContext(boneStructure.getOldMemoryAddress(), this);
}
/**
* This method retuns the bone tracks for animation for blender version 2.49 (and probably several
* lower versions too).
*
* @param actionStructure the structure containing the tracks
* @param blenderContext the blender context
* @return a list of tracks for the specified animation
* @throws BlenderFileException an exception is thrown when there are problems with the blend file
*/
private BlenderAction getTracks249(Structure actionStructure, BlenderContext blenderContext)
throws BlenderFileException {
LOGGER.log(Level.FINE, "Getting tracks!");
Structure chanbase = (Structure) actionStructure.getFieldValue("chanbase");
List<Structure> actionChannels = chanbase.evaluateListBase(); // bActionChannel
BlenderAction blenderAction =
new BlenderAction(actionStructure.getName(), blenderContext.getBlenderKey().getFps());
int lastFrame = 1;
for (Structure bActionChannel : actionChannels) {
String animatedFeatureName = bActionChannel.getFieldValue("name").toString();
Pointer p = (Pointer) bActionChannel.getFieldValue("ipo");
if (!p.isNull()) {
Structure ipoStructure = p.fetchData().get(0);
Ipo ipo = this.fromIpoStructure(ipoStructure, blenderContext);
if (ipo != null) { // this can happen when ipo with no curves appear in blender file
lastFrame = Math.max(lastFrame, ipo.getLastFrame());
blenderAction.featuresTracks.put(animatedFeatureName, ipo);
}
}
}
blenderAction.stopFrame = lastFrame;
return blenderAction;
}