Texture atlas for 3D meshes?

[Michael-Oleksy]

I have created a sprite atlas using TexturePacker.
Now, I want to load a single texture to the GPU (the sprite atlas texture), and use specific frames from the atlas as textures for my different 3D meshes.

I can easily create a Sprite using any of the images from the sprite atlas, but I don't want to have sprites, I want to use that rectangle from the sprite atlas on a 3D mesh - is this possible?

I could have a different texture (or Image) for each 3D mesh, but I don't want that because the GPU needs to load different textures all the time - essentially, I don't want to reload different textures into the GPU for each 3D mesh, all the textures are on a single sprite atlas that is already loaded into the GPU?

Thanks.