[libgdx] No skeleton attachments rendering

ado

Hey all, first post here.
I have been banging my head on the wall for 2 days now trying to get my spine animation loaded and rendering in my project. Im all googled out and need some help.
I have read an reread a heap of libgdx-spine examples and the skeleton, skeletonData, etc are all being loaded and attachments populated with TextureRegions but when I try to render it nothing is drawn on the screen. No errors of any sort.
Load skeletonData:

public void loadSpineData(){
      skeletons = new ArrayMap<String, SkeletonData>();
      FileHandle[] files = Gdx.files.internal("./bin/data/anim").list();
      for(FileHandle file: files){
         if(file.extension().matches("json")){
            spr = game.getAtlas().findRegion("human/guyF_lower_half");
            SkeletonJson json = new SkeletonJson(game.getAtlas());
            json.setScale(2f);
            SkeletonData skelData = json.readSkeletonData(file);
            skeletons.put(skelData.getName(), skelData);
            game.getAnimSystem().loadAnimation(skelData);
         }
      }
   }

Create skeleton:

Skeleton skel = new Skeleton(skeletons.get(tmp[0]));
               skel.setSkin(tmp[1]);
               skel.setToSetupPose();
               Animation a = new Animation(skel, game.getAnimSystem().getAnimationPool().get(tmp[0]));
               entity.addComponent(a);

Update:

if(animMapper.has(e)){
         animMapper.get(e).getMainState().update(world.getDelta());
         animMapper.get(e).getMainState().apply(animMapper.get(e).getSkeleton());
         animMapper.get(e).getSkeleton().update(world.getDelta());
         animMapper.get(e).getSkeleton().updateWorldTransform();
      }

Render:

if(sm.has(world.getEntity(array.get(y)))){
               drawStaticEntity(array,y,batch);      //is drawn
            }else if(animMapper.has(world.getEntity(array.get(y)))){
               batch.draw(game.getEntities().getSpr(), game.getRenderer().getCamera().position.x+100,game.getRenderer().getCamera().position.y+100, 64[i]3,64[/i]3);       //is not drawn
               Skeleton skel = animMapper.get(world.getEntity(array.get(y))).getSkeleton();
               batch.draw(((RegionAttachment)skel.findSlot("head").getAttachment()).getRegion().getTexture(), 0, 1000,64[i]3,64[/i]3);       //is not drawn
               skeletonRenderer.draw(batch,skel);       //is not drawn
               debugRenderer.draw(skel);       //is not drawn
            }

I am pretty new to programming so there may be something thats going right over my head here but I have tried creating a skeleton at startup at 0,0 and a bunch of other tests still no joy 🙁
If someone could help me out I would be hugely greatful

ado

Nate

You have some batch.draw calls with comments saying they are not drawn. Maybe you never get inside the IF? Can you verify skeletonRenderer.draw is actually being called? Eg, set a breakpoint on the line, or put a System.out.println on the line before it. If it is, maybe you are drawing off screen?

ado

Hey thanks for the reply.
I have tried doing things like:

if (slot.data.getAdditiveBlending() != additive) {
               additive = !additive;
               if (additive)
                  batch.setBlendFunction(srcFunc, GL20.GL_ONE);
               else
                  batch.setBlendFunction(srcFunc, GL20.GL_ONE_MINUS_SRC_ALPHA);
            }
            Gdx.app.log(Rts.LOG, "GOT HERE");          //test
            batch.draw(texture, vertices, 0, vertices.length, triangles, 0, triangles.length);

and

if (slot.data.getAdditiveBlending() != additive) {
               additive = !additive;
               if (additive)
                  batch.setBlendFunction(srcFunc, GL20.GL_ONE);
               else
                  batch.setBlendFunction(srcFunc, GL20.GL_ONE_MINUS_SRC_ALPHA);
            }
            batch.draw(game.getEntities().getSpr(), 0+100,0+100, 64[i]3,64[/i]3);             //test
            batch.draw(((RegionAttachment)attachment).getRegion().getTexture(), 0, 1000,64[i]3,64[/i]3);         //test
            batch.draw(texture, vertices, 0, vertices.length, triangles, 0, triangles.length);

The above code is right out of the skeleton renderer>draw>regionAttach and I have been able to get it to print "GOT HERE" in console but the extra render calls do nothing.

Nate

If updateWorldTransform is not called, drawing will render regions with zero width. This is the #1 reason for nothing being rendered, so it's good to verify.

Otherwise my guess is you are drawing off screen. Look at the positions of the vertices passed to batch.draw. Index 0 and 1 are x and y for the first point. Index 5 and 6 are x and y for the second point, etc by 5. Make sure the region the vertices describe has a width and height and that the position is on screen.

Another way to try is to draw the skeleton at 0,0 and move the camera to 0,0 so you are sure to see it if it is drawing.

You need to simplify the problem as much as possible so you can figure out what has gone wrong. Test your assumptions at each step.

ado

I'm also using artemis entity system and have a class AnimationSystem who's process method is getting call before each render call with this code:

Update:

if(animMapper.has(e)){
         animMapper.get(e).getMainState().update(world.getDelta());
         animMapper.get(e).getMainState().apply(animMapper.get(e).getSkeleton());
         animMapper.get(e).getSkeleton().update(world.getDelta());
         animMapper.get(e).getSkeleton().updateWorldTransform();
      }

So updateWorldTransform is called each frame.
I have also tried

Another way to try is to draw the skeleton at 0,0 and move the camera to 0,0 so you are sure to see it if it is drawing.

with the same assumption, to check if its drawing off screen. I had tried to create a skeleton at startup but that was not rendering either.
I seem to have it working now after trying a few different things, mainly:

batch.begin();
               Skeleton skel = animMapper.get(world.getEntity(array.get(y))).getSkeleton();
               skeletonRenderer.draw(batch,skel);
               batch.end();
               debugRenderer.draw(skel);

Where previously I was ending the batch after the debug renderer. Textures now render but no debug. To fix that I had to add

debugRenderer.getShapeRenderer().setProjectionMatrix(game.getRenderer().getCamera().combined);

to the start of each render.

TLDR; seems to be working now. Thanks for the help