function data()
return {
	params = {
		map_color_alpha = {
			compressionAllowed = true,
			fileName = "streets/newross_medium_paving.tga",
			magFilter = "LINEAR",
			minFilter = "LINEAR_MIPMAP_LINEAR",
			mipmapAlphaScale = 0,
			type = "TWOD",
			wrapS = "REPEAT",
			wrapT = "REPEAT",
		},
		map_normal = {
			compressionAllowed = false,
			fileName = "streets/newross_medium_paving_nrml.tga",
			magFilter = "LINEAR",
			minFilter = "LINEAR_MIPMAP_LINEAR",
			mipmapAlphaScale = 0,
			type = "TWOD",
			wrapS = "REPEAT",
			wrapT = "REPEAT",
		},
		map_op = {
			compressionAllowed = true,
			fileName = "streets/newross_overlay.tga",
			magFilter = "LINEAR",
			minFilter = "LINEAR_MIPMAP_LINEAR",
			mipmapAlphaScale = 0,
			type = "TWOD",
			wrapS = "REPEAT",
			wrapT = "REPEAT",
		},
		operation = {
			op = "OVERLAY",
			mode = "WORLD_XY",
			scale = { 1.0/200, 1.0/200 }
		},
		props = {
			coeffs = {
				1.0, 1.0, 0.42, 20.0, 
			},
		},
		polygon_offset = {
			factor = 0.0,
			units = 0.0
		},
	},
	type = "TRANSPARENT_NRML_MAP_OP",	
}
end