2D Object Culling By Default.

[CreatorADOfficial]

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Description

Object culling for 2D by default in preview, a lot of times objects start to lag and making a extension is hard even tho I'm into gdevelop for years.

Solution suggested

Either a extension with behaviour or built in engine (object Culling)
Describe the solution
I think instead of adding updates the game engine should focus on adding optimisation updates,

• draw objects without any properties (further objects can be just drawn without any properties making them less laggy)
• adding Frustum Culling + Occlusion Culling for 3D
• lowering level of detail for further objects
  Add any other context or screenshots about the feature request here.

Explain if you can help to implement the solution.

Alternatives considered

A clear and concise description of any alternative solutions or features you've considered.

[Silver-Streak]

To clarify:

• GDevelop already does not render objects outside of the camera in 2D. It does continue processing them for positions and variables, which is the normal definition and method of object culling in the majority of engines I can find. So nothing would be changed there.
  • That said, I do think it'd be nice to have occlusion and frustum culling for 3D though. It's possible to do it manually via events but it's somewhat a nightmare.
• 2D Mipmaps (lowering level of detail of further objects) are not supported for the version of PixiJS the engine is currently on, although if the engine is updated to PixiJS 8 I believe it is supported there. As far as I know ThreeJS (and Gdevelop's usage of it) does support level of detail for 3D, but it's not surfaced easily. It could be nice to surface an option to select LOD models for 3D objects.
  • Do note that even if the engine supports it, game devs/artists would still have to manually create their low detail models for each distance they're setting up. This is true in other engines as well.

[CreatorADOfficial]

To clarify:

• GDevelop already does not render objects outside of the camera in 2D. It does continue processing them for positions and variables, which is the normal definition and method of object culling in the majority of engines I can find. So nothing would be changed there.

  • That said, I do think it'd be nice to have occlusion and frustum culling for 3D though. It's possible to do it manually via events but it's somewhat a nightmare.

• 2D Mipmaps (lowering level of detail of further objects) are not supported for the version of PixiJS the engine is currently on, although if the engine is updated to PixiJS 8 I believe it is supported there. As far as I know ThreeJS (and Gdevelop's usage of it) does support level of detail for 3D, but it's not surfaced easily. It could be nice to surface an option to select LOD models for 3D objects.

  • Do note that even if the engine supports it, game devs/artists would still have to manually create their low detail models for each distance they're setting up. This is true in other engines as well.

Nicee, but a lot of times my 3D projects under preform even tho it has 20-30 objects.

• also I wanna ask if it's possible to stop loading faces for 3D Box objects if the camera is higher than the object you can hide the below face for each direction because they are probably still getting drawn
• adding a 3D shape painter (because sometimes you can just draw the terrain manually but it's hard to find a extension for this and I think it would be better than using objects for terrain if you can just draw a green square (out of reach)

[Silver-Streak]

I don't see how those have to do with 2D Object culling, though. (Dev rules state only 1 feature request per submission)

If you have other requests you'd want to follow the full feature request for them, though. Feature requests do have to start on the forum though before they're reviewed by the devs, following this process: https://forum.gdevelop.io/t/welcome-to-the-user-feedback-channel/39935