rampType: rampType: In which direction the ramp is applied.
beginDist: beginDist: Distance where the ramp starts.
endDist: endDist: Distance where the ramp ends.
density: density: How much effect the filter has (0-1).
invert: invert: If the multipliers should be inverted
intensity: intensity: Multiplier for both the diffuse and specular result.
diffuse: diffuse: How much this light filter affects diffuse lighting.
specular: specular: How much this light filter affects specular lighting.