CreateMeshBuilder,
AddVertex, -0.4, -0.38, -0.3
AddVertex, -0.4, 0.38, -0.3
AddVertex, 0.4, 0.38, -0.3
AddVertex, 0.4, -0.38, -0.3
AddFace, 0,1,2,3

LoadTexture,repeater.png
SetTextureCoordinates,0,0,1
SetTextureCoordinates,1,0,0
SetTextureCoordinates,2,1,0
SetTextureCoordinates,3,1,1
SetDecalTransparentColor,255,255,255