Using AtlasTexture in meshes

berarma

I'm creating an AtlasTexture for the albedo in SpatialMaterial, then I select a region and it shows in the texture field of the inspector but not in the mesh. Not even in the preview mesh in the inspector. I'm using MeshInstance.

If I click on "Make Unique" in the texture field that holds the AtlasTexture the mesh uses the whole image, not the region that I selected as the texture.

I could avoid AtlasTexture and adjust the texture by using the UV map parameters of the mesh but it's a lot harder to correctly select the region. It's also imprecise since it doesn't use pixels but floating point scales.

I really like the way the AtlasTexture lets me select the textures from a image but it doesn't seem to work. So what's the AtlasTexture for? How should I use it?

GlyphTheWolf

Hm, that's strange. I believe it should be working unless TextureAtlas is limited to 2D only.

Maybe I will check that later and update if find something (if there will be no answer faster).

berarma

I've found this article that implies that it was created for 2D only: https://godotengine.org/article/atlas-support-returns-godot-3-2

But it would be so good for mapping textures to meshes from an image. It's already almost there in the UI. There must be some other way to do the same or there should be. Right now it seems the only thing I can do is save each material texture in an individual file.

Megalomaniak

@GlyphTheWolf said: Hm, that's strange. I believe it should be working unless TextureAtlas is limited to 2D only.

It is.

GlyphTheWolf

@berarma said: Right now it seems the only thing I can do is save each material texture in an individual file.

It seems that it's only option if you don't want to setup values by hand for each tile. It is possible to create shader and supply texture, texture size, texture rect and it will be working similar to AtlasTexture (like render part of the texture only), but then anyway you: 1. Need to set all that parameters for each tile 2. Need to create new material for each tile (since uniforms for shader may be changed only per material) 3. Can't use editor tool to select rect anyway