[SOLVED] Import FBX

oxplay2 · May 12, 2019, 1:52pm

i tried use this model but i had:

SEVERE: Uncaught exception thrown in Thread[jME3 Main,5,main]
java.lang.ArrayIndexOutOfBoundsException: 19
	at com.jme3.renderer.opengl.GLRenderer.setVertexAttrib(GLRenderer.java:2755)
	at com.jme3.renderer.opengl.GLRenderer.setVertexAttrib(GLRenderer.java:2808)
	at com.jme3.renderer.opengl.GLRenderer.renderMeshDefault(GLRenderer.java:3040)
	at com.jme3.renderer.opengl.GLRenderer.renderMesh(GLRenderer.java:3077)
	at com.jme3.material.logic.DefaultTechniqueDefLogic.renderMeshFromGeometry(DefaultTechniqueDefLogic.java:70)
	at com.jme3.material.logic.SinglePassAndImageBasedLightingLogic.render(SinglePassAndImageBasedLightingLogic.java:255)
	at com.jme3.material.Technique.render(Technique.java:166)
	at com.jme3.material.Material.render(Material.java:1024)
	at com.jme3.renderer.RenderManager.renderGeometry(RenderManager.java:614)
	at com.jme3.renderer.queue.RenderQueue.renderGeometryList(RenderQueue.java:266)
	at com.jme3.renderer.queue.RenderQueue.renderQueue(RenderQueue.java:305)
	at com.jme3.renderer.RenderManager.renderViewPortQueues(RenderManager.java:877)
	at com.jme3.renderer.RenderManager.flushQueue(RenderManager.java:779)
	at com.jme3.renderer.RenderManager.renderViewPort(RenderManager.java:1108)
	at com.jme3.renderer.RenderManager.render(RenderManager.java:1158)
	at com.jme3.app.SimpleApplication.update(SimpleApplication.java:270)
	at com.jme3.system.lwjgl.LwjglAbstractDisplay.runLoop(LwjglAbstractDisplay.java:151)
	at com.jme3.system.lwjgl.LwjglDisplay.runLoop(LwjglDisplay.java:197)
	at com.jme3.system.lwjgl.LwjglAbstractDisplay.run(LwjglAbstractDisplay.java:232)
	at java.lang.Thread.run(Thread.java:748)

Ali_RS · May 12, 2019, 2:38pm

Hmm, I do not get ArrayIndexOutOfBoundsException but an assertion error in MorphTrack.java.

It works for me with a trick.

I tested it from the TestGltfLoading.java which Nehon wrote.

github.com

jMonkeyEngine/jmonkeyengine/blob/2124e3e86bf898d6c7a7bc90a191cf639e39bacb/jme3-examples/src/main/java/jme3test/model/TestGltfLoading.java#L119


//        dl2.setDirection(new Vector3f(1f, 1.0f, 1f).normalizeLocal());
//        dl2.setColor(new ColorRGBA(0.5f, 0.5f, 0.5f, 1.0f));
//        rootNode.addLight(dl2);
//        PointLight pl = new PointLight(new Vector3f(5.0f, 5.0f, 5.0f), ColorRGBA.White, 30);
//        rootNode.addLight(pl);
//        PointLight pl1 = new PointLight(new Vector3f(-5.0f, -5.0f, -5.0f), ColorRGBA.White.mult(0.5f), 50);
//        rootNode.addLight(pl1);
        //loadModel("Models/gltf/polly/project_polly.gltf", new Vector3f(0, 0, 0), 0.5f);
        //loadModel("Models/gltf/zophrac/scene.gltf", new Vector3f(0, 0, 0), 0.1f);
    //    loadModel("Models/gltf/scifigirl/scene.gltf", new Vector3f(0, -1, 0), 0.1f);
        //loadModel("Models/gltf/man/scene.gltf", new Vector3f(0, -1, 0), 0.1f);
       //loadModel("Models/gltf/torus/scene.gltf", new Vector3f(0, -1, 0), 0.1f);
        //loadModel("Models/gltf/morph/scene.gltf", new Vector3f(0, 0, 0), 0.2f);
        //loadModel("Models/gltf/morphCube/AnimatedMorphCube.gltf", new Vector3f(0, 0, 0), 1f);
     //   loadModel("Models/gltf/morph/SimpleMorph.gltf", new Vector3f(0, 0, 0), 0.1f);
        //loadModel("Models/gltf/nier/scene.gltf", new Vector3f(0, -1.5f, 0), 0.01f);
        //loadModel("Models/gltf/izzy/scene.gltf", new Vector3f(0, -1, 0), 0.01f);
        //loadModel("Models/gltf/darth/scene.gltf", new Vector3f(0, -1, 0), 0.01f);
        //loadModel("Models/gltf/mech/scene.gltf", new Vector3f(0, -1, 0), 0.01f);

but there is an assertion error in

github.com

jMonkeyEngine/jmonkeyengine/blob/c11fbe4dd8644249ae0e27fd40538bfcfc2fd42c/jme3-core/src/main/java/com/jme3/anim/MorphTrack.java#L125


 */
public void setKeyframes(float[] times, float[] weights) {
    setTimes(times);
    if (weights != null) {
        if (times == null) {
            throw new RuntimeException("MorphTrack doesn't have any time for key frames, please call setTimes first");
        }
        this.weights = weights;
        assert times != null && times.length == weights.length;
    }
}
@Override
public double getLength() {
    return length;
}
@Override
public void getDataAtTime(double t, float[] store) {

I commented out that line and it works fine.
Not sure if this an issue with the model itself or a bug in Gltf loader.

Edit:
I opened an issue for this:

oxplay2 · May 20, 2019, 12:21pm

i found some problems, that might need to fix.

Character has animations: Anim1
Morph control found
FOUND MORPH TARGET:Character_0
FOUND MORPH TARGET:Character_1
FOUND MORPH TARGET:Character_2

each of geoms(trully just different materials), even if its same model, they have same keys.
animation is in closest parent node.

using Blender 2.8 and default .gltf exporter

Problem 1 is, that after export animation is visible not via NLA tracks, but only from Dope Sheet.(where i can see only edited current action - this mean one action)
Problem 2 is, if i got no animation in Dope Sheet, i cant even use manual shape key change. (it dont change if no MorphControl controller is generated and its only generated if there is animation. (i would suggest generate MorphControl even if there are no shape key animations)
Animation problem is that even if its visible(only one animation from Dope Sheet, because it dont get animations from NLA tracks) and i use morphHelper.morphElements.get(“Character_0”).composer.setCurrentAction(“Anim1”);
it just dont work, where this composer says it have animation in its list… (this one is from Character node)
not sure why this dont work, i tried a lot things and im still not sure, it could be i use new blender and gltf exporter, and @nehon used older so there might be some changes. Or maybe it was not commited into JME code fully.

Currently can use only manual shape key change in code, but anyway need animation visible to get .gltf importer create MorphControl to even have this working.

Ali_RS · May 20, 2019, 5:59pm

For what it worth, I already have made an issue for this

github.com/KhronosGroup/glTF-Blender-IO

ShapeKey keyframe animation issue

opened 09:35AM - 15 May 19 UTC

closed 02:21PM - 14 Mar 20 UTC

Ali-RS

exporter Animation

**Describe the bug** 1- Shapekey keyframe animation not exported when pushed a…s NLA track. 2- If not push it to NLA track, it exports the animation but neither of https://gltf-viewer.donmccurdy.com/ and https://sandbox.babylonjs.com/ is able to play it. **To Reproduce** Steps to reproduce the behavior: 1- add a sphere to scene, from the Physics tab add a physic "Soft body" to it 2- add a plane, from physics tab add a physic "Collision" to it 3- simulate soft body animation and export it to mdd animation. (File -> export -> lightwave point catch (mdd)) 4- delete plane, and remove any physics from sphere object. 5- select sphere in the scene, import mdd animation data. (File -> import -> lightwave point catch (mdd)) After importing mdd file, it will create keyframe animation with shape keys. Now try to export it to Gltf. **.blend file/ .gltf** This is my test blend file which is ready for exporting to gltf: [untitled.blend.zip](https://github.com/KhronosGroup/glTF-Blender-IO/files/3181916/untitled.blend.zip) **Version** - OS: linux mint - Blender Version [2.79] **Additional context** I am using the latest version of this addon from this commit https://github.com/KhronosGroup/glTF-Blender-IO/commit/70eed19eacfec3e2ca27c9ec0ba02fe1cb91dba2

Ali_RS · May 20, 2019, 6:05pm

afaik Nehon did not use blender Gltf addon in his examples. He was using the Gltf exported directly from Sketchfab.

oxplay2 · May 20, 2019, 6:09pm

right, this model had gltf download version only i think anyway, so yes its possible it could be about gltf exporter.(did you verify its their issue? - because im not sure where to check this in gltf files)

i tried some gltf exporter options, but none helped.

anyway im glad it work somehow for manual change. animations can be done via code, could be nice to have it working, but imo shape keys usually will be used for manual code change purpose.