Hello guys! I discovered the wonderful world of the metaball functions in H about 2 weeks ago, and I saw the potential for it to become an "afterburn" like thing for houdini. This is basically the shader found in the heavy smoke, but adapted to the noise my fx lead calls Power Noise. (Called power noise because of how it inverts the samples using a power function) I've attached the otl for the shader as well as a sample scene here. Hope this helps! powerNoiseDemo.hipnc gwPowNoise.otl