how can I dim the output of beam.catch
I would suggest two approaches:
One (maybe obvious) approach is to modify the audio signal going into beam.catch. Here, I reduce the amplitude of the audio signal so that the light becomes less bright.
Another approach is to use beam.op. In this example, I multiply the dim
signal with 0.5. As a result, the light becomes less bright as well.
Both patches I shared should result in the same DMX signals. So you can choose either approach depending on which one fits best with your patch.