Feature request

I would like to see a rainbow "cycle" effect added to HyperHDR. This is similar to the existing Rainbow Swirl effect, except the colour is the same for all LEDs and light bulbs. It smoothly cycles through the rainbow and lights up the entire room uniformly. I have some python code I was previously using with the Hyperion effects engine that might help.

import hyperion, time, colorsys

# Get the parameters
rotationTime = float(hyperion.args.get('rotation-time', 30.0))
brightness   = float(hyperion.args.get('brightness', 100))/100.0
saturation   = float(hyperion.args.get('saturation', 100))/100.0
reverse      = bool(hyperion.args.get('reverse', False))

# Calculate the sleep time and hue increment
sleepTime = 0.1
hueIncrement = sleepTime / rotationTime

# Switch direction if needed
if reverse:
	increment = -increment

# Start the write data loop
hue = 0.0
while not hyperion.abort():
	rgb = colorsys.hsv_to_rgb(hue, saturation, brightness)
	hyperion.setColor(int(255*rgb[0]), int(255*rgb[1]), int(255*rgb[2]))
	hue = (hue + hueIncrement) % 1.0
	time.sleep(sleepTime)

What problem does this feature solve?

Adds a nice new effect. I like it for an LED + light bulb combo, where the entire room is lit up a single colour at any point in time.

What does the proposed API look like?

N/A

How should this be implemented in your opinion?

Porting the provided python code (hopefully)

Are you willing to work on this yourself?

I'm not really a programmer unfortunately.