Thank you for reply! I convert xml to .mesh by OgreXmlConverter (from tools), it show  "WARNING: vertex count (9900) is not as claimed (1788)", i don't know why, but now i change <sharedgeometry vertexcount="9900"> in XML and try run :

Exception in thread "main" java.lang.IllegalArgumentException: No controller found in OgreEntityNode. Means there is no skeleton or pose animation!
at raft.jpct.bones.BonesImporter.importOgre(BonesImporter.java:132)
at bones.samples.OgreSample.createAnimatedGroup(OgreSample.java:42)
at bones.samples.AbstractSkinSample.initialize(AbstractSkinSample.java:79)
at bones.samples.OgreSample.initialize(OgreSample.java:58)
at bones.samples.AbstractSample.loop(AbstractSample.java:86)
at bones.samples.OgreSample.main(OgreSample.java:75)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)



Exception in thread "main" java.nio.BufferOverflowException
at java.nio.Buffer.nextPutIndex(Buffer.java:495)
at java.nio.DirectFloatBufferU.put(DirectFloatBufferU.java:250)
at com.jmex.model.ogrexml.OgreLoader.loadVertexBuffer(OgreLoader.java:381)
at com.jmex.model.ogrexml.OgreLoader.loadMesh(OgreLoader.java:625)
at com.jmex.model.ogrexml.OgreLoader.loadModel(OgreLoader.java:225)
at com.jmex.model.ogrexml.OgreLoader.loadModel(OgreLoader.java:177)
at bones.samples.OgreSample.createAnimatedGroup(OgreSample.java:38)
at bones.samples.AbstractSkinSample.initialize(AbstractSkinSample.java:79)
at bones.samples.OgreSample.initialize(OgreSample.java:57)
at bones.samples.AbstractSample.loop(AbstractSample.java:86)
at bones.samples.OgreSample.main(OgreSample.java:74)


Hi!
I tried export mesh + animation from blender (2.57). When i exporting collada and load dae in bones sample, only one animation present. I make 2 animation actions in blender but only one loads. I should make animation actions in some specific way in blender? And another question - i setup http://code.google.com/p/blender2ogre/ blender-ogre exporter and try load exported someMesh.mesh.xml, but then java.nio.BufferOverflowException throw & the same when try convert by .bat . Result .mesh.xml file, i suspicious, is too big 3.2 mb (.dae only ~600kb).  I need another exporter or ?

Сonsole show security troubles, then the problem is not in security. Do you work with applets before? What kind of connection do you use? Client-Server-Applet-HTML is not a real scheme,  what should make an applet and what data exchange will be between applet-server?

I am a newbie in 3d & graphics, maybe i don't  understand some details and thinking differently, but i've been using intuitive methods by name.

I see that the setRotationMatrix set translation too.
I solve my issue by this class:


public class Object3dEx extends Object3D {
    private static final short childMax = 10;
    private String group;
    private int childCnt = 0;
    private Object3dEx[] children = new Object3dEx[childMax];

    //Rotation around vector cache
    private Matrix cacheRotAxisMat;
    private float cacheRotAng;
    private float cacheRotAngCos;
    private float cacheRotAngSin;
    private SimpleVector cacheRotVec;


    public Object3dEx(Object3D obj) {
        super(obj, true);
    }

    public String getGroup() {
        return group;
    }

    public void setGroup(String group) {
        this.group = group;
    }

    public void addChildEx(Object3dEx o) {
        if (o != null && childCnt < childMax) {
            children[childCnt] = o;
            ++childCnt;
        }
    }

    public void removeChildEx(Object3dEx o) {
        if (o != null) {
            for (int i = 0; i < children.length; i++) {
                if (o.equals(children[i])) {
                    children[i] = null;
                    --childCnt;
                }
            }
        }
    }

    @Override
    public void translate(float x, float y, float z) {
        translate(new SimpleVector(x, y, z));
    }

    @Override
    public void translate(SimpleVector trans) {
        super.translate(trans);
        if (children != null && children.length > 0) {
            for (Object3dEx ch : children) {
                if (ch != null) {
                    ch.translate(trans);
                }
            }
        }
    }

    @Override
    public void rotateX(float w) {
        super.rotateX(w);
        rotateChildren(w, 0, 0);
    }

    @Override
    public void rotateY(float w) {
        super.rotateY(w);
        rotateChildren(0, w, 0);
    }

    @Override
    public void rotateZ(float w) {
        super.rotateZ(w);
        rotateChildren(0, 0, w);
    }

    @Override
    public void setScale(float absScale) {
        super.setScale(absScale);
        if (children != null && children.length > 0) {
            for (Object3dEx ch : children) {
                if (ch != null) {
                    ch.setScale(absScale);
                }
            }
        }
    }

    @Override
    public void scale(float scale) {
        super.scale(scale);
        if (children != null && children.length > 0) {
            for (Object3dEx ch : children) {
                if (ch != null) {
                    ch.scale(scale);
                }
            }
        }
    }

    public void removeChildAll() {
        children = new Object3dEx[childMax];
        childCnt = 0;
    }

    public void rotateChildren(float x, float y, float z) {
        if (children != null && children.length > 0) {
            for (Object3dEx ch : children) {
                if (ch != null) {
                    SimpleVector parentPosition = this.getTransformedCenter();
                    ch.rotateAroundVectorX(parentPosition, x);
                    ch.rotateAroundVectorY(parentPosition, y);
                    ch.rotateAroundVectorZ(parentPosition, z);
                }
            }
        }
    }

    public void rotateAroundVectorX(SimpleVector vector, float angle) {
        if (angle == 0) return;
        vector.x = 1;
        rotateAroundVector(vector, angle);
    }

    public void rotateAroundVectorY(SimpleVector vector, float angle) {
        if (angle == 0) return;
        vector.y = 1;
        rotateAroundVector(vector, angle);
    }

    public void rotateAroundVectorZ(SimpleVector vector, float angle) {
        if (angle == 0) return;
        vector.z = 1;
        rotateAroundVector(vector, angle);
    }

    public void rotateAroundVector(SimpleVector vector, float angle) {
        if (angle == 0) return;

        float c, s;
        Matrix m;
        boolean cachedAngle = false;

        if (cacheRotAng == angle) {
            c = cacheRotAngCos;
            s = cacheRotAngSin;
            cachedAngle = true;
        } else {
            cacheRotAng = angle;
            c = FloatMath.cos(angle);
            cacheRotAngCos = c;
            s = FloatMath.sin(angle);
            cacheRotAngSin = s;
        }

        if (cacheRotVec != null && cacheRotVec.equals(vector) && cachedAngle && cacheRotAxisMat != null) {
            m = cacheRotAxisMat;
        } else {
            cacheRotVec = vector;
            m = new Matrix();

            float a11 = c + (1 - c) * vector.x * vector.x;
            float a12 = (1 - c) * vector.x * vector.y - s * vector.z;
            float a13 = (1 - c) * vector.z * vector.x + s * vector.y;
            m.setRow(0, a11, a12, a13, 0);

            float a21 = (1 - c) * vector.x * vector.y + s * vector.z;
            float a22 = c + (1 - c) * vector.y * vector.y;
            float a23 = (1 - c) * vector.z * vector.y - s * vector.x;
            m.setRow(1, a21, a22, a23, 0);

            float a31 = (1 - c) * vector.z * vector.x - s * vector.y;
            float a32 = (1 - c) * vector.z * vector.y + s * vector.x;
            float a33 = c + (1 - c) * vector.z * vector.z;
            m.setRow(2, a31, a32, a33, 0);

            m.setRow(3, 0, 0, 0, 1);

            cacheRotAxisMat = m;
        }

        Matrix currentTransformMatrix = getWorldTransformation();
        currentTransformMatrix.matMul(m);
        clearTranslation();
        getRotationMatrix().setRow(3, 0, 0, 0, 1);
        setRotationMatrix(currentTransformMatrix);
    }
}



Thanks for reply, in my case pivot move to "parent", then rotate after that i mast return pivot to 0,0,0 but if i return it after call rotations methods pivot changes don't apply and rendering rotation around 0,0,0 ;
I write rotation function, but some strange happens with translation -

Looks like translation vector multiply by 2 after setting rotation matrix: mast be -12.869117 -10.0 -15.309665 1.0 , but - -27.011253 -20.0 -29.451801 1.0
thats code & log of it:


                System.out.println("world matrix = " + getWorldTransformation());
System.out.println("operation matrix = " + m);

Matrix currentTransformMAtrix = getWorldTransformation();
currentTransformMAtrix.matMul(m);
Matrix translateMatrix = new Matrix();
translateMatrix.setRow(3, currentTransformMAtrix.get(3, 0), currentTransformMAtrix.get(3,1), currentTransformMAtrix.get(3, 2), 1);
System.out.println("Result mul matrix = " + currentTransformMAtrix);

setRotationMatrix(currentTransformMAtrix);
System.out.println("world matrix after rotation = " + getWorldTransformation());
setTranslationMatrix(translateMatrix);
System.out.println("world matrix after translation = " + getWorldTransformation());



04-29 08:18:28.314: INFO/System.out(216): world matrix = (
04-29 08:18:28.314: INFO/System.out(216): -3.214496E-8 1.04 3.214496E-8 0.0
04-29 08:18:28.314: INFO/System.out(216): -0.735391 -4.5459842E-8 0.735391 0.0
04-29 08:18:28.314: INFO/System.out(216): 0.735391 0.0 0.735391 0.0
04-29 08:18:28.314: INFO/System.out(216): -14.142136 -10.0 -14.142136 1.0
04-29 08:18:28.314: INFO/System.out(216): )
04-29 08:18:28.314: INFO/System.out(216): operation matrix = (
04-29 08:18:28.324: INFO/System.out(216): 0.99627036 0.0 0.08628637 0.0
04-29 08:18:28.324: INFO/System.out(216): 0.0 1.0 0.0 0.0
04-29 08:18:28.324: INFO/System.out(216): -0.08628637 0.0 0.99627036 0.0
04-29 08:18:28.324: INFO/System.out(216): 0.0 0.0 0.0 1.0
04-29 08:18:28.324: INFO/System.out(216): )
04-29 08:18:28.324: INFO/System.out(216): Result mul matrix = (
04-29 08:18:28.324: INFO/System.out(216): -3.479874E-8 1.04 2.92514E-8 0.0
04-29 08:18:28.324: INFO/System.out(216): -0.79610246 -4.5459842E-8 0.66919404 0.0
04-29 08:18:28.335: INFO/System.out(216): 0.66919404 0.0 0.79610246 0.0
04-29 08:18:28.335: INFO/System.out(216): -12.869117 -10.0 -15.309665 1.0
04-29 08:18:28.335: INFO/System.out(216): )
04-29 08:18:28.335: INFO/System.out(216): world matrix after rotation = (
04-29 08:18:28.335: INFO/System.out(216): -3.479874E-8 1.04 2.92514E-8 0.0
04-29 08:18:28.335: INFO/System.out(216): -0.79610246 -4.5459842E-8 0.66919404 0.0
04-29 08:18:28.335: INFO/System.out(216): 0.66919404 0.0 0.79610246 0.0
04-29 08:18:28.344: INFO/System.out(216): -27.011253 -20.0 -29.451801 1.0
04-29 08:18:28.344: INFO/System.out(216): )
04-29 08:18:28.344: INFO/System.out(216): world matrix after translation = (
04-29 08:18:28.344: INFO/System.out(216): -3.479874E-8 1.04 2.92514E-8 0.0
04-29 08:18:28.354: INFO/System.out(216): -0.79610246 -4.5459842E-8 0.66919404 0.0
04-29 08:18:28.354: INFO/System.out(216): 0.66919404 0.0 0.79610246 0.0
04-29 08:18:28.354: INFO/System.out(216): -25.738234 -20.0 -30.61933 1.0
04-29 08:18:28.354: INFO/System.out(216): )

p.s. why method to set transformation matrix is not present?

java console show any exception?

Unfortunately solution from that thread not approached. In my case, for example -  5 objects

  (obj1)(---obj2---)(obj3)(---obj4---)(obj5)   on some axis

obj3 set parent to others & rotate, than remove all child relation, after that obj1 or another can be parent for same group of objects in another axis etc.
And dummy object solution i think not good for this situation, because possible many relation changes sequences.

For overriding relations i need move child's rotation pivot to parent rotation pivot, i tried use child.rotateAxis(parent.get*Axis(), angle) , but this some reason did not work, maybe need convert parent axis vector?

p.s. when in collision listener i try set texture to collision polygon (texture not set before) happens arrayIndexOutOfBounds, but polygon ID  < maxPolyIds.
p.p.s sorry for my english.

How does the process of rotation and translation works for child objects?
Can you tell, please, if i'm going to override child-parent relation, how better implement child rotation near parent pivot?

If after parent object rotation remove child, child object reset translation/rotation which were applied by parent relation.
It is a bug? How i can leave child in current place after removing parent relation?

if push 1 on ~1 second ?  try as "drum roll" touch screen

Ok, thanks. I already tried jpct collision, but need some physics. Ill try it

AE supports jBullet? Or other physics engines?

I try this 2 demos..., on bowling boxes, when push ball on the bottom, ball often passes through box. When balls count > ~15 its really lag (HTC DHD)