How does Godot perform 3d texture wrapping?

This is a READ-ONLY snapshot of the Godot Community Forums when TwistedTwigleg was the owner, which is hosted for archival reasons only. The current Godot Community Forums can be found here.

Some links may point to external websites, including the current Godot Community Forums. These websites are not associated with TwistedTwigleg.

How does Godot perform 3d texture wrapping?

itgiawa

I'm trying to understand how this minecraft-like project determines which texture to draw on each face of a block: https://voxel-tools.readthedocs.io/en/latest/ I'd like to create blocks with different textures for different faces.

So I'm trying to understand how is bark drawn on only the sides of a wooden log and not the top?

But in general I cant figure out how Godot does texture wrapping either.

For example, this line in a spatial shader:

COLOR = texture(TEXTURE, UV);

seems to texture the mesh with the material that was assigned in the editor. But in 3d there are many faces of a mesh, how does the shader know which texture to apply to which face?

In the voxel-tool material the faces of the blocks are arranged in a 2d atlas like this:

However, i've seen other projects where the texture looks 3d like this:

How does Godot know how to wrap the textures around the materials?

cybereality

The UVs come from when you export the model from your DCC tool (like Blender). If you are creating the meshes programmatically (for example with MeshDataTool) then you are required to apply the UV coordinates yourself (but this can be complex for anything other than a cube).

Calinou

Godot's CubeMesh primitive is designed to have one different texture on each side (3×2 layout). If you want to apply the same texture on all sides, set the material's UV scale to Vector3(3, 2, 1)).