Could someone please explain how exactly the effects engine works? I know you can do ballyhoos and sttuff with it but how do you find out what numbers to do and stuff? I am fairly new to lighting and have only made one ballyhoo with the effects engine.
Eric gave a good description of effects engine basics.
The effects engine allows you to apply a waveform to any parameter of any fixture. This allows you to do far more than just ballyhoos. You can write custom rainbows, strobes, iris effects, or just about anything that you can imagine.
The effect table is the waveform that is applied to the parameter. To apply a table, you must first set a value for that parameter. The value that you set is the base value for the waveform. If you set intensity at 50% and put a sine wave on intensity, the intensity will smoothly fade above and below 50%.
Rate is the speed at which an effect runs and is specified in cycles per minute.
Size is how large the effect will travel from the base value. Size is usually specified using the same unit as the parameter you are applying the effect to. Using my example above, with a sine wave on intensity and a base value of 50%, a size of 50% will cause the effect to reach 0% and Full. You can specify a size that is larger than the range of the parameter. This will cause the waveform to be cropped at the top and the bottom of the range.
Offset controls where in the waveform a fixture will begin running the effect. If you dial the offset for all of your fixtures together, you won't see any significant changes. The power of offset is when you use it with fanning. Holding the Fan key and dialing an encoder will spread the values of the parameter you are working with across the fixtures in your selection. If you Fan the effect offset, you can create patterns and random looking effects.
Length is easiest to understand if you think of it in relation to rate. If you set a rate of 10 cycles per minute, the "time slice" for a single cycle of your effect to run is 6 seconds. If you set length to 50%, your effect waveform will run in 3 seconds and then the sit at the base value for 3 seconds. If you set the length above 50%, the effect waveform will not run completely before the next cycle starts.
N Shot sets how many times the effect will run. By default, the effect will continue running until another cue stops it. Setting N Shot to 2 will run 2 complete cycles of the waveform and then stop at the parameter base value.
Fade, Delay, and Path allow you to set timing for your effects that are different from the parameters that they run on. You can have an intensity base value bump in a time 0 and then have the effect fade in a 5s fade.
I hope this helps you understand what tools you have available in the effects engine window. Here is an example of one way that you could take advantage of both the effects engine and the Hog 3's "real-world" fixture model:
Imagine that you have some color mixing fixtures and you want to create a random looking fire effect using the color mixing that only uses reds, oranges, and yellows.
Select your fixtures. Dial Saturation to 100%. Dial Hue to a nice orange (this will be the center point of your effect). Open the Effects Engine window. Apply a sine wave to Hue. Dial the size down so that you are seeing red, orange, and yellow, but you aren't seeing magenta or green. Adjust the Effects Rate to your liking. Hold Fan and dial the Effects Offset until the effect looks random. Done!
This would be very difficult without an effects engine or just using CMY parameters. You would probably end up having to write a cuelist with cues that have each light in the color you want.
Please let me know if there are any other questions I can answer for you.
Eric gave a good description of effects engine basics.
The effects engine allows you to apply a waveform to any parameter of any fixture. This allows you to do far more than just ballyhoos. You can write custom rainbows, strobes, iris effects, or just about anything that you can imagine.
The effect table is the waveform that is applied to the parameter. To apply a table, you must first set a value for that parameter. The value that you set is the base value for the waveform. If you set intensity at 50% and put a sine wave on intensity, the intensity will smoothly fade above and below 50%.
Rate is the speed at which an effect runs and is specified in cycles per minute.
Size is how large the effect will travel from the base value. Size is usually specified using the same unit as the parameter you are applying the effect to. Using my example above, with a sine wave on intensity and a base value of 50%, a size of 50% will cause the effect to reach 0% and Full. You can specify a size that is larger than the range of the parameter. This will cause the waveform to be cropped at the top and the bottom of the range.
Offset controls where in the waveform a fixture will begin running the effect. If you dial the offset for all of your fixtures together, you won't see any significant changes. The power of offset is when you use it with fanning. Holding the Fan key and dialing an encoder will spread the values of the parameter you are working with across the fixtures in your selection. If you Fan the effect offset, you can create patterns and random looking effects.
Length is easiest to understand if you think of it in relation to rate. If you set a rate of 10 cycles per minute, the "time slice" for a single cycle of your effect to run is 6 seconds. If you set length to 50%, your effect waveform will run in 3 seconds and then the sit at the base value for 3 seconds. If you set the length above 50%, the effect waveform will not run completely before the next cycle starts.
N Shot sets how many times the effect will run. By default, the effect will continue running until another cue stops it. Setting N Shot to 2 will run 2 complete cycles of the waveform and then stop at the parameter base value.
Fade, Delay, and Path allow you to set timing for your effects that are different from the parameters that they run on. You can have an intensity base value bump in a time 0 and then have the effect fade in a 5s fade.
I hope this helps you understand what tools you have available in the effects engine window. Here is an example of one way that you could take advantage of both the effects engine and the Hog 3's "real-world" fixture model:
Imagine that you have some color mixing fixtures and you want to create a random looking fire effect using the color mixing that only uses reds, oranges, and yellows.
Select your fixtures. Dial Saturation to 100%. Dial Hue to a nice orange (this will be the center point of your effect). Open the Effects Engine window. Apply a sine wave to Hue. Dial the size down so that you are seeing red, orange, and yellow, but you aren't seeing magenta or green. Adjust the Effects Rate to your liking. Hold Fan and dial the Effects Offset until the effect looks random. Done!
This would be very difficult without an effects engine or just using CMY parameters. You would probably end up having to write a cuelist with cues that have each light in the color you want.
Please let me know if there are any other questions I can answer for you.
