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TiledMap Layers causing many extra texture bindings

I'm using Tiled Map Editor to generate a tile map for my game in libgdx. I noticed while creating a simple map that having two tile layers causes many extra texture bindings. I'm using 2 packed tilesets and NOT using individual pngs.

For example, here is map with 2 tile layers with 2 tilesets. The dirt is from 1 tileset, while the rocks, trees, and other objects are on a different tileset. 2 layers

This causes 25 texture bindings.

However, if I delete the layer with the rocks, trees, etc. and only leave the dirt, I get 1 texture binding.

1 layer

Is there a better way to achieve this? Again, I'm not using individual pngs for the tiles, they are packed into 2 tilesets. What are the work arounds for this? To just pack everything into 1 tileset? I have some maps that are causing 80+ texture bindings.

Not really doing anything weird to render the map either:

class MapRenderer {

    private TiledMapRenderer tiledMapRenderer;

    public MapRenderer(TiledMap tiledMap, float tiledMapScale,  Camera camera) {

        tiledMapRenderer = new OrthogonalTiledMapRenderer(tiledMap, tiledMapScale);
        tiledMapRenderer.setView((OrthographicCamera) camera);
    }

    public void update() {

        tiledMapRenderer.render();
    }
}

Sort of seems like it is rendering each tile, tile by tile. When a better way to reduce texture bindings would be to render each tile by tileset.

Solution

  • When you create the tiled map, create separate layer for tiles from each tileset. This way you will have only 1 extra binding for each tileset.