TileMap rendering error after Android export.

[Atem1995]

Godot version

4.0 Beta 10

System information

Window10

Issue description

As shown in the figure, there is always a problem with TileMap rendering after Android is exported. Does anyone know what the problem is?

If it is exported on PC, there is no problem.

Steps to reproduce

略

Minimal reproduction project

略

[Zireael07]

Most likely related to low precision on Android

[Atem1995]

Most likely related to low precision on Android

@Zireael07 This question is very strange. I didn't remember it at first, but it has appeared since I used "Scenes collection" in TileMap; I'm not sure if it has anything to do with this. I want to do some more tests and then have a look.

[Atem1995]

@Zireael07


I think I found the problem, mainly the rendering problem caused by using "Scenes collection", but I don't know how to solve it. Please, everyone.

[Atem1995]

@Zireael07
I found a solution, probably because "Scenes collection" can't be placed in the same "TileSet" resource as the common mapping resource. If it is hierarchically separated as shown in the figure, there seems to be no error.But at this time, the display of "Scenes collection" will go wrong again.Please look at the tile display of the house

[akien-mga]

We would need a minimal reproduction project to debug further, i.e. a zipped project with only the minimal setup necessary to reproduce the bug which we can export to PC and Android to compare.

[cobouti]

I encountered the same problem while making my game.

Version: Godot 4.0
System: Windows 10

Issue Description:

Tilemap renderer breaks in scenes with overlapping TileMaps after Exporting to Android

Poco X4 GT

Samsung A30s

Samsung Galaxy S20 FE

Steps to Reproduce:

1 - Create new project
2 - Configure Exportation for Android following: https://docs.godotengine.org/en/stable/tutorials/export/exporting_for_android.html

3 - Set Project Setting Display/Window/Stretch to:
3.1 - Mode : Viewport
3.2 - Aspect : Expand

4 - Create 2D scene
5 - Add Tilemap
6 - Add second Tilemap with transparency in the sprite
7 - Overlap the tiles of the two TileMaps
8 - Export to Android

Minimal Project

Android Tile Rendering Test.zip

[Calinou]

The TileSet editor creates a new texture with one-pixel padding around each tile to avoid issues with filtering being enabled. Can you reproduce this if you disable Use Texture Padding in the TileSet atlas properties then export to Android again?

[cobouti]

This seems to fix it. Test project now:

Game without fix:

Game with fix:

[Atem1995]

Thank you! That fixs!

…

------------------ 原始邮件 ------------------ 发件人: "godotengine/godot" ***@***.***>; 发送时间: 2023年3月26日(星期天) 凌晨2:14 ***@***.***>; ***@***.******@***.***>; 主题: Re: [godotengine/godot] 【Android Tilemap Rendering Bug】TileMap rendering error after Android export. (Issue #71020) The TileSet editor creates a new texture with one-pixel padding around each tile to avoid issues with filtering being enabled. Can you reproduce this if you disable Use Texture Padding in the TileSet atlas properties then export to Android again? — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you authored the thread.Message ID: ***@***.***>

[Kaffeine]

Thanks @Calinou!
Disabling Use Texture Padding also fixes the rendering issue for me.

[panreyes]

This error has also happened to me in one of my games. In my case I also solved it by deactivating "Texture padding", but I also noticed that the first tileset had no glitches, but the tilesets after that were damaged.

It also seems that the second tileset picks up part of the pixels of the first tileset.

The error probably occurs near here:

godot/scene/resources/tile_set.cpp

Line 4761 in dce1aab

void TileSetAtlasSource::_update_padded_texture() {

[gravit22]

Then "Use Texture Padding" should be turned off by default

[panreyes]

Then "Use Texture Padding" should be turned off by default

Texture Padding helps a lot avoiding graphical artifacts when scaling tilemaps.

Disabling "Use Texture Padding" can be a temporary patch to avoid having more intense graphical artifacts, but it is not the solution.

[Atem1995]

Thank you. Now the problem has been solved.

…

------------------ 原始邮件 ------------------ 发件人: "godotengine/godot" ***@***.***>; 发送时间: 2023年10月23日(星期一) 上午6:20 ***@***.***>; ***@***.******@***.***>; 主题: Re: [godotengine/godot] TileMap rendering error after Android export. (Issue #71020) Then "Use Texture Padding" should be turned off by default Texture Padding helps a lot avoiding graphical artifacts when scaling tilemaps. Disabling "Use Texture Padding" can be a temporary patch to avoid having more intense graphical artifacts, but it is not the solution. — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you authored the thread.Message ID: ***@***.***>

[clayjohn]

This was likely fixed by #84852 Which will be part of 4.2.1. Once 4.2.1, please test again and confirm