[SOLVED] How understand atlas coordinates?

[Pawel]

Atlas UVs use a top-left origin, so (0,0) is in top-left corner, (1,1) is in bottom-right corner, just get the data from the resource.get_atlas() (API reference (Resource))

For meshes, the texcoord0 values you put in the buffer are typically normalized [0..1], and orientation is same: (0,0) top-left, (1,1) bottom-right.

So if you’re computing UVs from an atlas rect (x, y, w, h), where x,y are pixels from the top-left of the atlas, no inversion should be needed.

If you need a single image from an atlas, check out its metatadata using resource.get_atlas(), like explained e.g. here: Get animation frames of sprite at runtime, but bear in mind those coordinates will be in pixels (not normalized).

There is one pitfall with rotated images - here you can find a very good explanation on how to set properly images from atlas as textures for the meshes:

Meshes in Defold - Workshop by Eugene Mozok | MWDJ 2025

Linked topic:

Using the mesh component for 2D

I am trying to make a soft object similar to : Puffy Cat - game with soft-body physics I have points linked by elastic connections. This works well. However, I don’t know how to apply a bitmap to this object. I don’t seem to fully understand how to use the mesh component. Do any of you have a simple example showing how to overlay a physical object 2D like this, with a texture ?