love.graphics.setColorMask
Available since LÖVE 0.9.0 This function is not supported in earlier versions. Sets the color mask. Enables or disables specific color components when rendering and clearing the screen. For example, if red is set to false, no further changes will be made to the red component of any pixels. Function Enables color masking for the specified color components. Synopsis love.graphics.setColorMask( red, green, blue, alpha ) Arguments boolean red Render red component.