godot set-sprite code example
Example: godot sprite tiling
Using A TextureRect
Create a TextureRect-node
Assign your image as its texture
Set expand to true
Set strech_mode to STRETCH_TILE / 2
Set rect_size to the dimensions you wish for
Using A Sprite
Select your image in the "FileSystem"-Tab
Switch over to the "Import"-Tab (next to the "Scene"-Tab)
Set "Repeat" to "Enabled" and click "Reimport" (at the bottom)
Create a Sprite-node
Assign your image as its texture
Set region_enabled to true
Set region_rect to the dimensions you wish for