- simplified implementation for bones loading - static bones poses discarded - loading of object animation for blender 2.50+ added (didn't work for these versions before) - several small bugfixes git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@9115 75d07b2b-3a1a-0410-a2c5-0572b91ccdca3.0
Kae..pl
13 years ago
parent
fb68a176b5
commit
3a84693f68
@ -0,0 +1,204 @@ |
|||||||
|
package com.jme3.scene.plugins.blender.animations; |
||||||
|
|
||||||
|
import java.util.ArrayList; |
||||||
|
import java.util.List; |
||||||
|
import java.util.Map; |
||||||
|
|
||||||
|
import com.jme3.animation.Bone; |
||||||
|
import com.jme3.math.Matrix4f; |
||||||
|
import com.jme3.math.Quaternion; |
||||||
|
import com.jme3.math.Transform; |
||||||
|
import com.jme3.math.Vector3f; |
||||||
|
import com.jme3.scene.plugins.blender.BlenderContext; |
||||||
|
import com.jme3.scene.plugins.blender.exceptions.BlenderFileException; |
||||||
|
import com.jme3.scene.plugins.blender.file.DynamicArray; |
||||||
|
import com.jme3.scene.plugins.blender.file.Structure; |
||||||
|
import com.jme3.scene.plugins.blender.objects.ObjectHelper; |
||||||
|
|
||||||
|
/** |
||||||
|
* This class holds the basic data that describes a bone. |
||||||
|
* |
||||||
|
* @author Marcin Roguski (Kaelthas) |
||||||
|
*/ |
||||||
|
public class BoneContext { |
||||||
|
/** The structure of the bone. */ |
||||||
|
private Structure boneStructure; |
||||||
|
/** Bone's pose channel structure. */ |
||||||
|
private Structure poseChannel; |
||||||
|
/** Bone's name. */ |
||||||
|
private String boneName; |
||||||
|
/** This variable indicates if the Y axis should be the UP axis. */ |
||||||
|
private boolean fixUpAxis; |
||||||
|
/** The bone's armature matrix. */ |
||||||
|
private Matrix4f armatureMatrix; |
||||||
|
/** The parent context. */ |
||||||
|
private BoneContext parent; |
||||||
|
/** The children of this context. */ |
||||||
|
private List<BoneContext> children = new ArrayList<BoneContext>(); |
||||||
|
/** Created bone (available after calling 'buildBone' method). */ |
||||||
|
private Bone bone; |
||||||
|
/** Bone's pose transform (available after calling 'buildBone' method). */ |
||||||
|
private Transform poseTransform = new Transform(); |
||||||
|
/** The bone's rest matrix. */ |
||||||
|
private Matrix4f restMatrix; |
||||||
|
/** Bone's total inverse transformation. */ |
||||||
|
private Matrix4f inverseTotalTransformation; |
||||||
|
/** Bone's parent inverse matrix. */ |
||||||
|
private Matrix4f inverseParentMatrix; |
||||||
|
|
||||||
|
/** |
||||||
|
* Constructor. Creates the basic set of bone's data. |
||||||
|
* |
||||||
|
* @param boneStructure |
||||||
|
* the bone's structure |
||||||
|
* @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 |
||||||
|
*/ |
||||||
|
public BoneContext(Structure boneStructure, Matrix4f objectToArmatureMatrix, final Map<Long, Structure> bonesPoseChannels, BlenderContext blenderContext) throws BlenderFileException { |
||||||
|
this(boneStructure, null, objectToArmatureMatrix, bonesPoseChannels, blenderContext); |
||||||
|
} |
||||||
|
|
||||||
|
/** |
||||||
|
* 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 computes the rest matrix for the bone. |
||||||
|
* |
||||||
|
* @param objectToArmatureMatrix |
||||||
|
* object-to-armature transformation matrix |
||||||
|
*/ |
||||||
|
private void computeRestMatrix(Matrix4f objectToArmatureMatrix) { |
||||||
|
if (parent != null) { |
||||||
|
inverseParentMatrix = parent.inverseTotalTransformation.clone(); |
||||||
|
} else if (fixUpAxis) { |
||||||
|
inverseParentMatrix = objectToArmatureMatrix.clone(); |
||||||
|
} else { |
||||||
|
inverseParentMatrix = Matrix4f.IDENTITY.clone(); |
||||||
|
} |
||||||
|
|
||||||
|
restMatrix = armatureMatrix.clone(); |
||||||
|
inverseTotalTransformation = restMatrix.invert(); |
||||||
|
|
||||||
|
restMatrix = inverseParentMatrix.mult(restMatrix); |
||||||
|
|
||||||
|
for (BoneContext child : this.children) { |
||||||
|
child.computeRestMatrix(objectToArmatureMatrix); |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
/** |
||||||
|
* This method computes the pose transform for the bone. |
||||||
|
*/ |
||||||
|
@SuppressWarnings("unchecked") |
||||||
|
private void computePoseTransform() { |
||||||
|
DynamicArray<Number> loc = (DynamicArray<Number>) poseChannel.getFieldValue("loc"); |
||||||
|
DynamicArray<Number> size = (DynamicArray<Number>) poseChannel.getFieldValue("size"); |
||||||
|
DynamicArray<Number> quat = (DynamicArray<Number>) poseChannel.getFieldValue("quat"); |
||||||
|
if (fixUpAxis) { |
||||||
|
poseTransform.setTranslation(loc.get(0).floatValue(), -loc.get(2).floatValue(), loc.get(1).floatValue()); |
||||||
|
poseTransform.setRotation(new Quaternion(quat.get(1).floatValue(), quat.get(3).floatValue(), -quat.get(2).floatValue(), quat.get(0).floatValue())); |
||||||
|
poseTransform.setScale(size.get(0).floatValue(), size.get(2).floatValue(), size.get(1).floatValue()); |
||||||
|
} else { |
||||||
|
poseTransform.setTranslation(loc.get(0).floatValue(), loc.get(1).floatValue(), loc.get(2).floatValue()); |
||||||
|
poseTransform.setRotation(new Quaternion(quat.get(0).floatValue(), quat.get(1).floatValue(), quat.get(2).floatValue(), quat.get(3).floatValue())); |
||||||
|
poseTransform.setScale(size.get(0).floatValue(), size.get(1).floatValue(), size.get(2).floatValue()); |
||||||
|
} |
||||||
|
|
||||||
|
Transform localTransform = new Transform(bone.getLocalPosition(), bone.getLocalRotation()); |
||||||
|
localTransform.setScale(bone.getLocalScale()); |
||||||
|
localTransform.getTranslation().addLocal(poseTransform.getTranslation()); |
||||||
|
localTransform.getRotation().multLocal(poseTransform.getRotation()); |
||||||
|
localTransform.getScale().multLocal(poseTransform.getScale()); |
||||||
|
|
||||||
|
poseTransform.set(localTransform); |
||||||
|
} |
||||||
|
|
||||||
|
/** |
||||||
|
* This method builds the bone. It recursively builds the bone's children. |
||||||
|
* |
||||||
|
* @param bones |
||||||
|
* a list of bones where the newly created bone will be added |
||||||
|
* @param boneOMAs |
||||||
|
* the map between bone and its old memory address |
||||||
|
* @param blenderContext |
||||||
|
* the blender context |
||||||
|
* @return newly created bone |
||||||
|
*/ |
||||||
|
public Bone buildBone(List<Bone> bones, Map<Bone, Long> boneOMAs, BlenderContext blenderContext) { |
||||||
|
Long boneOMA = boneStructure.getOldMemoryAddress(); |
||||||
|
bone = new Bone(boneName); |
||||||
|
bones.add(bone); |
||||||
|
boneOMAs.put(bone, boneOMA); |
||||||
|
blenderContext.addLoadedFeatures(boneOMA, boneName, boneStructure, bone); |
||||||
|
|
||||||
|
Matrix4f pose = this.restMatrix.clone(); |
||||||
|
ObjectHelper objectHelper = blenderContext.getHelper(ObjectHelper.class); |
||||||
|
|
||||||
|
Vector3f poseLocation = pose.toTranslationVector(); |
||||||
|
Quaternion rotation = pose.toRotationQuat(); |
||||||
|
Vector3f scale = objectHelper.getScale(pose); |
||||||
|
|
||||||
|
bone.setBindTransforms(poseLocation, rotation, scale); |
||||||
|
for (BoneContext child : children) { |
||||||
|
bone.addChild(child.buildBone(bones, boneOMAs, blenderContext)); |
||||||
|
} |
||||||
|
|
||||||
|
this.computePoseTransform(); |
||||||
|
|
||||||
|
return bone; |
||||||
|
} |
||||||
|
|
||||||
|
/** |
||||||
|
* @return bone's pose transformation |
||||||
|
*/ |
||||||
|
public Transform getPoseTransform() { |
||||||
|
return poseTransform; |
||||||
|
} |
||||||
|
|
||||||
|
/** |
||||||
|
* @return built bone (available after calling 'buildBone' method) |
||||||
|
*/ |
||||||
|
public Bone getBone() { |
||||||
|
return bone; |
||||||
|
} |
||||||
|
} |
||||||
Loading…
Reference in new issue