Examples with Ipo com.jme3.scene.plugins.blender.animations.Ipo used on opensource projects

Example 1 with Ipo

use of com.jme3.scene.plugins.blender.animations.Ipo in project jmonkeyengine by jMonkeyEngine.

the class AnimationHelper method getCurveType.

/**
     * This method returns the type of the ipo curve.
     * 
     * @param structure
     *            the structure must contain the 'rna_path' field and
     *            'array_index' field (the type is not important here)
     * @param blenderContext
     *            the blender context
     * @return the type of the curve
     */
public int getCurveType(Structure structure, BlenderContext blenderContext) {
    // reading rna path first
    BlenderInputStream bis = blenderContext.getInputStream();
    int currentPosition = bis.getPosition();
    Pointer pRnaPath = (Pointer) structure.getFieldValue("rna_path");
    FileBlockHeader dataFileBlock = blenderContext.getFileBlock(pRnaPath.getOldMemoryAddress());
    bis.setPosition(dataFileBlock.getBlockPosition());
    String rnaPath = bis.readString();
    bis.setPosition(currentPosition);
    int arrayIndex = ((Number) structure.getFieldValue("array_index")).intValue();
    // determining the curve type
    if (rnaPath.endsWith("location")) {
        return Ipo.AC_LOC_X + arrayIndex;
    }
    if (rnaPath.endsWith("rotation_quaternion")) {
        return Ipo.AC_QUAT_W + arrayIndex;
    }
    if (rnaPath.endsWith("scale")) {
        return Ipo.AC_SIZE_X + arrayIndex;
    }
    if (rnaPath.endsWith("rotation") || rnaPath.endsWith("rotation_euler")) {
        return Ipo.OB_ROT_X + arrayIndex;
    }
    LOGGER.log(Level.WARNING, "Unknown curve rna path: {0}", rnaPath);
    return -1;
}

Example 2 with Ipo

use of com.jme3.scene.plugins.blender.animations.Ipo in project jmonkeyengine by jMonkeyEngine.

the class ConstraintHelper method loadConstraints.

/**
     * This method reads constraints for for the given structure. The
     * constraints are loaded only once for object/bone.
     * 
     * @param objectStructure
     *            the structure we read constraint's for
     * @param blenderContext
     *            the blender context
     * @throws BlenderFileException
     */
public void loadConstraints(Structure objectStructure, BlenderContext blenderContext) throws BlenderFileException {
    LOGGER.fine("Loading constraints.");
    // reading influence ipos for the constraints
    AnimationHelper animationHelper = blenderContext.getHelper(AnimationHelper.class);
    Map<String, Map<String, Ipo>> constraintsIpos = new HashMap<String, Map<String, Ipo>>();
    Pointer pActions = (Pointer) objectStructure.getFieldValue("action");
    if (pActions.isNotNull()) {
        List<Structure> actions = pActions.fetchData();
        for (Structure action : actions) {
            Structure chanbase = (Structure) action.getFieldValue("chanbase");
            List<Structure> actionChannels = chanbase.evaluateListBase();
            for (Structure actionChannel : actionChannels) {
                Map<String, Ipo> ipos = new HashMap<String, Ipo>();
                Structure constChannels = (Structure) actionChannel.getFieldValue("constraintChannels");
                List<Structure> constraintChannels = constChannels.evaluateListBase();
                for (Structure constraintChannel : constraintChannels) {
                    Pointer pIpo = (Pointer) constraintChannel.getFieldValue("ipo");
                    if (pIpo.isNotNull()) {
                        String constraintName = constraintChannel.getFieldValue("name").toString();
                        Ipo ipo = animationHelper.fromIpoStructure(pIpo.fetchData().get(0), blenderContext);
                        ipos.put(constraintName, ipo);
                    }
                }
                String actionName = actionChannel.getFieldValue("name").toString();
                constraintsIpos.put(actionName, ipos);
            }
        }
    }
    // loading constraints connected with the object's bones
    Pointer pPose = (Pointer) objectStructure.getFieldValue("pose");
    if (pPose.isNotNull()) {
        List<Structure> poseChannels = ((Structure) pPose.fetchData().get(0).getFieldValue("chanbase")).evaluateListBase();
        for (Structure poseChannel : poseChannels) {
            List<Constraint> constraintsList = new ArrayList<Constraint>();
            Long boneOMA = Long.valueOf(((Pointer) poseChannel.getFieldValue("bone")).getOldMemoryAddress());
            // the name is read directly from structure because bone might
            // not yet be loaded
            String name = blenderContext.getFileBlock(boneOMA).getStructure(blenderContext).getFieldValue("name").toString();
            List<Structure> constraints = ((Structure) poseChannel.getFieldValue("constraints")).evaluateListBase();
            for (Structure constraint : constraints) {
                String constraintName = constraint.getFieldValue("name").toString();
                Map<String, Ipo> ipoMap = constraintsIpos.get(name);
                Ipo ipo = ipoMap == null ? null : ipoMap.get(constraintName);
                if (ipo == null) {
                    float enforce = ((Number) constraint.getFieldValue("enforce")).floatValue();
                    ipo = animationHelper.fromValue(enforce);
                }
                constraintsList.add(new BoneConstraint(constraint, boneOMA, ipo, blenderContext));
            }
            blenderContext.addConstraints(boneOMA, constraintsList);
        }
    }
    // loading constraints connected with the object itself
    List<Structure> constraints = ((Structure) objectStructure.getFieldValue("constraints")).evaluateListBase();
    if (constraints != null && constraints.size() > 0) {
        Pointer pData = (Pointer) objectStructure.getFieldValue("data");
        String dataType = pData.isNotNull() ? pData.fetchData().get(0).getType() : null;
        List<Constraint> constraintsList = new ArrayList<Constraint>(constraints.size());
        for (Structure constraint : constraints) {
            String constraintName = constraint.getFieldValue("name").toString();
            String objectName = objectStructure.getName();
            Map<String, Ipo> objectConstraintsIpos = constraintsIpos.get(objectName);
            Ipo ipo = objectConstraintsIpos != null ? objectConstraintsIpos.get(constraintName) : null;
            if (ipo == null) {
                float enforce = ((Number) constraint.getFieldValue("enforce")).floatValue();
                ipo = animationHelper.fromValue(enforce);
            }
            constraintsList.add(this.createConstraint(dataType, constraint, objectStructure.getOldMemoryAddress(), ipo, blenderContext));
        }
        blenderContext.addConstraints(objectStructure.getOldMemoryAddress(), constraintsList);
    }
}

Example 3 with Ipo

use of com.jme3.scene.plugins.blender.animations.Ipo in project jmonkeyengine by jMonkeyEngine.

the class AnimationHelper method getTracks249.

/**
     * 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");
    // bActionChannel
    List<Structure> actionChannels = chanbase.evaluateListBase();
    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;
}

Example 4 with Ipo

use of com.jme3.scene.plugins.blender.animations.Ipo in project jmonkeyengine by jMonkeyEngine.

the class AnimationHelper method fromIpoStructure.

/**
     * This method creates an ipo object used for interpolation calculations.
     * 
     * @param ipoStructure
     *            the structure with ipo definition
     * @param blenderContext
     *            the blender context
     * @return the ipo object
     * @throws BlenderFileException
     *             this exception is thrown when the blender file is somehow
     *             corrupted
     */
public Ipo fromIpoStructure(Structure ipoStructure, BlenderContext blenderContext) throws BlenderFileException {
    Structure curvebase = (Structure) ipoStructure.getFieldValue("curve");
    // preparing bezier curves
    Ipo result = null;
    // IpoCurve
    List<Structure> curves = curvebase.evaluateListBase();
    if (curves.size() > 0) {
        BezierCurve[] bezierCurves = new BezierCurve[curves.size()];
        int frame = 0;
        for (Structure curve : curves) {
            Pointer pBezTriple = (Pointer) curve.getFieldValue("bezt");
            List<Structure> bezTriples = pBezTriple.fetchData();
            int type = ((Number) curve.getFieldValue("adrcode")).intValue();
            bezierCurves[frame++] = new BezierCurve(type, bezTriples, 2);
        }
        curves.clear();
        result = new Ipo(bezierCurves, fixUpAxis, blenderContext.getBlenderVersion());
        Long ipoOma = ipoStructure.getOldMemoryAddress();
        blenderContext.addLoadedFeatures(ipoOma, LoadedDataType.STRUCTURE, ipoStructure);
        blenderContext.addLoadedFeatures(ipoOma, LoadedDataType.FEATURE, result);
    }
    return result;
}

Example 5 with Ipo

use of com.jme3.scene.plugins.blender.animations.Ipo in project jmonkeyengine by jMonkeyEngine.

the class AnimationHelper method getTracks250.

/**
     * 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");
    // bActionGroup
    List<Structure> actionGroups = groups.evaluateListBase();
    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;
}