# Question about how Phaser Tilemaps works behind?

**URL:** <https://phaser.discourse.group/t/question-about-how-phaser-tilemaps-works-behind/11618>\
**Category:** Phaser 3\
**Created:** [April 29, 2022, 8:23pm UTC](https://phaser.discourse.group/t/question-about-how-phaser-tilemaps-works-behind/11618 "2022-04-29T20:23:15Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Sieghart](https://avatars.discourse-cdn.com/v4/letter/s/e79b87/32.png) [@Sieghart](https://phaser.discourse.group/u/Sieghart)\
**Post date:** [April 29, 2022, 8:23pm UTC](https://phaser.discourse.group/t/question-about-how-phaser-tilemaps-works-behind/11618/1 "2022-04-29T20:23:15Z")

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Hi, I have a question about tilemaps in phaser. For the game I’m working on world is going to be a sandbox a really big map, limited but big, it is created using Tiled.

My plan was to split the whole map into chunks and loading and unload, I had already created that functionality and the map is split into different files.

Tiled has the option to create infinite maps and chunks are exported in one file, I see that Phaser has no problem loading the infinite maps in chunks from Tiled, you just load the JSON file from tiled, and phaser will tell no difference.

- But how is that working in the background? Does phaser render tilemap using chunks from the tiled infinite map or its render the whole map?
- Should I even split my map and create loading and unloading chunks that are off screen or it is already build in Phaser?

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**Author:** ![samme](https://yyz2.discourse-cdn.com/free1/user_avatar/phaser.discourse.group/samme/32/5275_2.png) [@samme](https://phaser.discourse.group/u/samme)\
**Post date:** [April 29, 2022, 10:35pm UTC](https://phaser.discourse.group/t/question-about-how-phaser-tilemaps-works-behind/11618/2 "2022-04-29T22:35:12Z")

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Phaser joins all the chunks when the tilemap data is parsed, I think.

Phaser renders only the tiles within the camera view.

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**Author:** ![Sieghart](https://avatars.discourse-cdn.com/v4/letter/s/e79b87/32.png) [@Sieghart](https://phaser.discourse.group/u/Sieghart)\
**Post date:** [April 30, 2022, 8:54am UTC](https://phaser.discourse.group/t/question-about-how-phaser-tilemaps-works-behind/11618/3 "2022-04-30T08:54:07Z")

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Thank you, I was confused because I was loading a really big map and find no performance drop so I was like wait does phaser handle chunks or what, should I even optimize my big map if this is working fine. So far 8000px x 8000px map is working fine for me, no fps drop at all. But im planning to have a lot of npcs and trees so i would see how that would play.

Good to know that phaser renders only what is in the camera view, phaser is awesome!!! at end i would not need probably to optimize at all and loading from chunks.