RandomExample.swift

func createLayer(baseView: MaplyBaseViewController) -> (MaplyQuadImageTilesLayer) {
	let precipTileSource = MaplyMultiplexTileSource(sources: tileSources)
	// Create a precipitation layer that animates
	let precipLayer = MaplyQuadImageTilesLayer(tileSource: precipTileSource!)
	precipLayer?.imageDepth = UInt32(tileSources.count)
	precipLayer?.animationPeriod = 1.0
	precipLayer?.imageFormat = MaplyQuadImageFormat.ImageUByteRed
	precipLayer?.numSimultaneousFetches = 4
	precipLayer?.handleEdges = false
	precipLayer?.coverPoles = false
	precipLayer?.shaderProgramName = WeatherShader.setupWeatherShader(baseView)
	precipLayer?.fade = 0.5
	return precipLayer!
}