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Mesh in not being drawn

warmanw

Hi,

I can't make MeshAttachment to draw. I have changed SpriteBatch to PolygonSpriteBatch. but i guess something is still missing.

I put the output in SkeletonTest and it worked perfectly. So i suppose something is wrong in my code.

	public ItemSpineAnimatedActor() {		
		json = new SkeletonJson(itemAtlas);
		SkeletonData skeletonData = getSkeletonData(texturePath, fromEmbed);
		AnimationStateData stateData = new AnimationStateData(skeletonData);
		renderer = new SkeletonRenderer();
		state = new AnimationState(stateData);
		skeleton = new Skeleton(skeletonData);
		setStartSkin();
		skeleton.updateWorldTransform();
                state.setAnimation(0, "anim", true);
	}

	@Override
	public void draw(Batch batch, float parentAlpha) {
			state.apply(skeleton);
			skeleton.updateWorldTransform();
			skeleton.update(Gdx.graphics.getDeltaTime());
			renderer.draw(batch, skeleton);
		}
	}

Please anyone help.

Nate

I don't see an issue with your code. You could try to remove stuff from SkeletonTest and then port that working code to your app.

warmanw

I did as you told. But still MeshAttachement is not drawn while others are. I suppose something is wrong in my code in general. I mean maybe openGL config is wrong or something on low level blocks PolygonSpriteBatch. Here is what I have now:

We are also using screen transitions like was suggested in Learning Libgdx Game Development where we use SpriteBatch.
http://goo.gl/umKAaE

public SimpleStage(float width, float height, boolean keepAspectRatio, Screen scr) {
		super(width, height, keepAspectRatio, new PolygonSpriteBatch());
		Gdx.input.setInputProcessor(this);
	}

AndroidApplicationConfiguration config = new AndroidApplicationConfiguration();
	config.useAccelerometer = false;
	config.useCompass = false;
	config.useWakelock = true;

public ItemSpineAnimatedActor() {
		json = new SkeletonJson(VikingGame.$().itemAtlas);
		SkeletonData skeletonData = GameScreen.roInstance.getSkeletonData();
		AnimationStateData stateData = new AnimationStateData(skeletonData);
		renderer = new SkeletonRenderer();
		skeleton = new Skeleton(skeletonData);
		skeleton.setToSetupPose();
		skeleton = new Skeleton(skeleton);
		skeleton.updateWorldTransform();
		state = new AnimationState(stateData);
		skeleton.setSkin("1");
		skeleton.setSlotsToSetupPose();
		state.setAnimation(0, ANIM_DEFAULT, true);
}
public void draw(Batch batch, float parentAlpha) {
		float delta = Math.min(Gdx.graphics.getDeltaTime(), 0.032f);
		skeleton.update(delta);
		state.update(delta);
		state.apply(skeleton);
		skeleton.updateWorldTransform();
		renderer.draw(batch, skeleton);
}

Nate

I don't see anything wrong with that code, except you create the skeleton twice, which won't compile. Can you post or email your JSON on file? Actually, it would be better if you posted excutable example code that doesn't work correctly when run.

warmanw

Works!

Even if batch was PolygonSpriteBatch object it was transferred to draw() function as a Batch instance so calling SkeletonRenderer#draw() with batch instance will call

public void draw (Batch batch, Skeleton skeleton)

instead of

public void draw (PolygonSpriteBatch batch, Skeleton skeleton)

so casting should be done before calling SkeletonRenderer#draw()

renderer.draw((PolygonSpriteBatch) batch, skeleton);

So easy and so many time spent 🙁

Nate

Ahh, glad you found it. 🙁 I'll keep this in mind. This is why I tend to use the concrete types in my field declarations, which is also the tiniest bit faster since it isn't a virtual call.