Weird heat wave looking effect when moving

+1 vote

In my game, when the player's moving (don't press anything and you'll see the issue), the player's circles look kinda weird.
The player parts are Area2D -> CollisionShape2D -> Sprite, the sprite is a 1024 x 1024 texture. The Area2D node is scaled 0.5, the sprite 0.0625 - the issue seems to disappear when changing the scale of both back to 1 (It could also be that it's just not visible enough to notice then).
It's fixed when using pixel snapping, but that causes everything to jiggle in a weird way and I'd rather have it looks smooth.
I tried a lot of stuff, like changing antialiasing settings, enabling mipmaps for the texture, a lot of flag combinations in the texture and so on. Replacing the texture with a 128 x 128 version didn't seem to help either.
Is there a way to fix this?

Here's a link to the broken game

Link to the project source

in Engine by (22 points)
edited by

Hi, i've downloaded the game, the yellow circle is the player? could we see some code?

by (3,487 points)

I updated the post with a link to the project source
The player is the first yellow circle, the other ones follow the player.

by (22 points)

Hi, i see some little weird effect, but i do not know if it's expected cause of the refresh rate or something. Could you post a gif image so i can confirm we are seeing the same effect? I've noticed in my computer that the problem is when the sprite is moving relative to screen. For example, if i add a Camera2D to the snakehead and set is as current so the snake is always "still" relative to screen, i see less weird effect on it, but start to notice it on the red circle below.

Sorry, is all i found :(

by (3,487 points)
moved by

Well, here's what I could record. I don't think you can see it well though (freaking compression)

https://gfycat.com/LazyAgedHoneyeater

by (22 points)

1 Answer

0 votes

I found out something myself.
This doesn't fix it entirely, but enabling mipmaps in the png's import settings makes it looks quite a bit better. However, now it's flickering between part of a side being cut off and the full circle showing (You can easily see for yourself by editing the import settings)

by (22 points)

I'll try and see.

by (3,487 points)
Welcome to Godot Engine Q&A, where you can ask questions and receive answers from other members of the community.

Please make sure to read Frequently asked questions and How to use this Q&A? before posting your first questions.
Social login is currently unavailable. If you've previously logged in with a Facebook or GitHub account, use the I forgot my password link in the login box to set a password for your account. If you still can't access your account, send an email to [email protected] with your username.