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Feature: applying static pose transformations for bones.

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git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@10872 75d07b2b-3a1a-0410-a2c5-0572b91ccdca
experimental
Kae..pl 11 years ago
parent 6b12e0d071
commit 44a7b1f098
3 changed files with 68 additions and 30 deletions
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  1. 6
      engine/src/blender/com/jme3/scene/plugins/blender/animations/BoneContext.java
  2. 12
      engine/src/blender/com/jme3/scene/plugins/blender/constraints/SimulationNode.java
  3. 58
      engine/src/blender/com/jme3/scene/plugins/blender/modifiers/ArmatureModifier.java

6
engine/src/blender/com/jme3/scene/plugins/blender/animations/BoneContext.java
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@ -29,7 +29,7 @@ public class BoneContext {
* The bones' matrices have, unlike objects', the coordinate system identical to JME's (Y axis is UP, X to the right and Z toward us).
* So in order to have them loaded properly we need to transform their armature matrix (which blender sees as rotated) to make sure we get identical results.
*/
private static final Matrix4f BONE_ARMATURE_TRANSFORMATION_MATRIX = new Matrix4f(1, 0, 0, 0, 0, 0, 1, 0, 0, -1, 0, 0, 0, 0, 0, 1);
public static final Matrix4f BONE_ARMATURE_TRANSFORMATION_MATRIX = new Matrix4f(1, 0, 0, 0, 0, 0, 1, 0, 0, -1, 0, 0, 0, 0, 0, 1);
private BlenderContext blenderContext;
/** The OMA of the bone's armature object. */
@ -102,7 +102,7 @@ public class BoneContext {
// then make sure it is rotated in a proper way to fit the jme bone transformation conventions
globalBoneMatrix.multLocal(BONE_ARMATURE_TRANSFORMATION_MATRIX);
Spatial armature = (Spatial) blenderContext.getLoadedFeature(armatureObjectOMA, LoadedFeatureDataType.LOADED_FEATURE);
Spatial armature = (Spatial) objectHelper.toObject(blenderContext.getFileBlock(armatureObjectOMA).getStructure(blenderContext), blenderContext);
ConstraintHelper constraintHelper = blenderContext.getHelper(ConstraintHelper.class);
Matrix4f armatureWorldMatrix = constraintHelper.toMatrix(armature.getWorldTransform());
@ -177,7 +177,7 @@ public class BoneContext {
* @return the length of the bone
*/
public float getLength() {
return length;
return length * bone.getModelSpaceScale().y;
}
/**

12
engine/src/blender/com/jme3/scene/plugins/blender/constraints/SimulationNode.java
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@ -250,7 +250,6 @@ public class SimulationNode {
*/
private void simulateSkeleton() {
if (constraints != null && constraints.size() > 0) {
boolean applyStaticConstraints = true;
Set<Long> alteredOmas = new HashSet<Long>();
if (animations != null) {
@ -335,22 +334,12 @@ public class SimulationNode {
animation.addTrack(newTrack);
}
}
applyStaticConstraints = false;
}
}
vars.release();
animControl.clearChannels();
this.reset();
}
// if there are no animations then just constraint the static
// object's transformation
if (applyStaticConstraints) {
for (Constraint constraint : constraints) {
constraint.apply(0);
}
skeleton.updateWorldVectors();
}
}
}
@ -373,6 +362,7 @@ public class SimulationNode {
if (constraint.getAlteredOmas() != null) {
alteredOmas.addAll(constraint.getAlteredOmas());
}
alteredOmas.add(boneContext.getBoneOma());
}
}
for (Bone child : bone.getChildren()) {

58
engine/src/blender/com/jme3/scene/plugins/blender/modifiers/ArmatureModifier.java
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@ -17,6 +17,8 @@ import com.jme3.animation.Bone;
import com.jme3.animation.BoneTrack;
import com.jme3.animation.Skeleton;
import com.jme3.animation.SkeletonControl;
import com.jme3.math.Matrix4f;
import com.jme3.math.Transform;
import com.jme3.scene.Geometry;
import com.jme3.scene.Mesh;
import com.jme3.scene.Node;
@ -29,12 +31,16 @@ import com.jme3.scene.plugins.blender.BlenderContext.LoadedFeatureDataType;
import com.jme3.scene.plugins.blender.animations.AnimationData;
import com.jme3.scene.plugins.blender.animations.ArmatureHelper;
import com.jme3.scene.plugins.blender.animations.BoneContext;
import com.jme3.scene.plugins.blender.constraints.ConstraintHelper;
import com.jme3.scene.plugins.blender.constraints.ConstraintHelper.Space;
import com.jme3.scene.plugins.blender.file.BlenderFileException;
import com.jme3.scene.plugins.blender.file.FileBlockHeader;
import com.jme3.scene.plugins.blender.file.Pointer;
import com.jme3.scene.plugins.blender.file.Structure;
import com.jme3.scene.plugins.blender.meshes.MeshContext;
import com.jme3.scene.plugins.blender.objects.ObjectHelper;
import com.jme3.util.BufferUtils;
import com.jme3.util.TempVars;
/**
* This modifier allows to add bone animation to the object.
@ -45,6 +51,7 @@ import com.jme3.util.BufferUtils;
private static final Logger LOGGER = Logger.getLogger(ArmatureModifier.class.getName());
private static final int MAXIMUM_WEIGHTS_PER_VERTEX = 4; // JME
private Structure armatureObject;
private Skeleton skeleton;
private Structure objectStructure;
private Structure meshStructure;
@ -75,7 +82,7 @@ import com.jme3.util.BufferUtils;
if (pArmatureObject.isNotNull()) {
ArmatureHelper armatureHelper = blenderContext.getHelper(ArmatureHelper.class);
Structure armatureObject = pArmatureObject.fetchData(blenderContext.getInputStream()).get(0);
armatureObject = pArmatureObject.fetchData(blenderContext.getInputStream()).get(0);
// load skeleton
Structure armatureStructure = ((Pointer) armatureObject.getFieldValue("data")).fetchData(blenderContext.getInputStream()).get(0);
@ -191,7 +198,6 @@ import com.jme3.util.BufferUtils;
mesh.getBuffer(Type.Position).setUsage(Usage.Stream);
mesh.getBuffer(Type.Normal).setUsage(Usage.Stream);
// creating empty buffers for HW skinning
// the buffers will be setup if ever used.
VertexBuffer verticesWeightsHW = new VertexBuffer(Type.HWBoneWeight);
@ -219,8 +225,51 @@ import com.jme3.util.BufferUtils;
}
node.addControl(control);
node.addControl(new SkeletonControl(animationData.skeleton));
blenderContext.setNodeForSkeleton(skeleton, node);
TempVars tempVars = TempVars.get();
try {
Pointer pPose = (Pointer) armatureObject.getFieldValue("pose");
if (pPose.isNotNull()) {
LOGGER.fine("Loading the pose of the armature.");
ObjectHelper objectHelper = blenderContext.getHelper(ObjectHelper.class);
ConstraintHelper constraintHelper = blenderContext.getHelper(ConstraintHelper.class);
Structure pose = pPose.fetchData(blenderContext.getInputStream()).get(0);
Structure chanbase = (Structure) pose.getFieldValue("chanbase");
List<Structure> chans = chanbase.evaluateListBase(blenderContext);
Transform transform = new Transform();
for (Structure poseChannel : chans) {
Pointer pBone = (Pointer) poseChannel.getFieldValue("bone");
if (pBone.isNull()) {
throw new BlenderFileException("Cannot find bone for pose channel named: " + poseChannel.getName());
}
BoneContext boneContext = blenderContext.getBoneContext(pBone.getOldMemoryAddress());
LOGGER.log(Level.FINEST, "Getting the global pose transformation for bone: {0}", boneContext);
Matrix4f poseMat = objectHelper.getMatrix(poseChannel, "pose_mat", blenderContext.getBlenderKey().isFixUpAxis());
poseMat.multLocal(BoneContext.BONE_ARMATURE_TRANSFORMATION_MATRIX);
Matrix4f armatureWorldMat = objectHelper.getMatrix(armatureObject, "obmat", blenderContext.getBlenderKey().isFixUpAxis());
Matrix4f boneWorldMat = armatureWorldMat.multLocal(poseMat);
boneWorldMat.toTranslationVector(tempVars.vect1);
boneWorldMat.toRotationQuat(tempVars.quat1);
boneWorldMat.toScaleVector(tempVars.vect2);
transform.setTranslation(tempVars.vect1);
transform.setRotation(tempVars.quat1);
transform.setScale(tempVars.vect2);
constraintHelper.applyTransform(boneContext.getArmatureObjectOMA(), boneContext.getBone().getName(), Space.CONSTRAINT_SPACE_WORLD, transform);
}
}
} catch (BlenderFileException e) {
LOGGER.log(Level.WARNING, "Problems occured during pose loading: {0}.", e.getLocalizedMessage());
} finally {
tempVars.release();
}
node.updateModelBound();
}
}
}
@ -277,8 +326,7 @@ import com.jme3.util.BufferUtils;
* this exception is thrown when the blend file structure is
* somehow invalid or corrupted
*/
private VertexBuffer[] getBoneWeightAndIndexBuffer(Structure meshStructure, int vertexListSize, int[] bonesGroups, Map<Integer, List<Integer>> vertexReferenceMap, Map<Integer, Integer> groupToBoneIndexMap, BlenderContext blenderContext)
throws BlenderFileException {
private VertexBuffer[] getBoneWeightAndIndexBuffer(Structure meshStructure, int vertexListSize, int[] bonesGroups, Map<Integer, List<Integer>> vertexReferenceMap, Map<Integer, Integer> groupToBoneIndexMap, BlenderContext blenderContext) throws BlenderFileException {
bonesGroups[0] = 0;
Pointer pDvert = (Pointer) meshStructure.getFieldValue("dvert");// dvert
// =

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