Is it possible to change the colour direction for Hue/Saturation colour transitions?

Hi Ric -

Yes, this is a limitation of Hue/Sat fades and yes, new color controls is the main new feature in the Eos family v2.3 software, coming out this summer. The plan is to take the new color controls from Eos into the Cobalt family after the Cobalt v7.3 release, which will take a little time. (There are some parts of the system we need to work on to prepare for the color controls package, among other improvements we want to make.) In the mean time, if you plan to stick with HSIC mode, you will need to plot a waypoint on your color change using an intermediate step to avoid the green range when going from warm to cool colors.

Thanks much -

Sarah

Thanks for the quick response Sarah!
When you say a waypoint, I assume you mean an intermediate sequence step with a different colour preset.
What should I set for a red to blue transition to avoid the yellow & green?
Is it based on the 0 to 360 degrees/clockwise, or is there a point or value that will take the shorter path?
Or is it just not possible in this mode, yet?

Hi Ric -

Yes, that's what I mean. The thing with Hue is that it's a continuum. So, to avoid the green you might need to go white in between (take the saturation down to pull in from the undesirable/disturbing colors). I had this exact problem when I used this mode for a trade show. In the end I adjusted my design so that the transitions weren't so glaringly green by changing my middle color, but going from a deep red to a deep blue via Hue by nature has to pass through green - it's like crossing a rainbow, you can't jump from one edge to the other without falling off, you have to skate through the yellow/green middle.

I'll have a chat with the team, though, to see if there's anything small we could do in the mean time to make this better - but I'm not sure if there is. I will let you know.

Thanks -

Sarah

Hi Sarah,
OK, a possible fix for us is to go to RGB mode.
Does RGB mode have a better colour transition?

If we reset all the fixtures to RGB, and recreate the colour palettes to match the colour palettes in the current file AND the fixtures use the same channel numbers, will my presets look the same?
I.e the goal is to avoid having to go through each preset and recreate colour information.

I'm hoping the the channel & palette reference will swap across...

Hi Ric - I recommend taking one fixture in the new mode and with a new address, patched to a new channel number, and using that create the new by type colors that match the others. Then give that fixture its old address back and change the mode on the existing channel patch. Make sense? That way the old patch isn't really disturbed. (And always work on a copy of the show, just in case.)

Thanks Sarah,
I'll give this a try when I'm back in front of the desk tomorrow.
Fingers crossed !

sclausen said:

Hi Ric - I recommend taking one fixture in the new mode and with a new address, patched to a new channel number, and using that create the new by type colors that match the others. Then give that fixture its old address back and change the mode on the existing channel patch. Make sense? That way the old patch isn't really disturbed. (And always work on a copy of the show, just in case.)

Hi Sarah,

Unfortunately the above didn't work. The palette references seemed to be there, and intensity was showing, but the actual colour wasn't changing.
Strangely enough looking at the fixtures selected showed the colour palette name changing on the fan attribute (showing on the device dock), but RGB values stayed at their last fixed setting.

We've gone through and updated the show file based on the colour palettes used, referencing the name shown on the fan attribute, and the transitions are definitely better in RGB.

Thanks for the assistance.

you can put delay and or discret time for each color param to change the path color, by default Cobalt go straight from the begin to the end. I have never work on color patch with HSIC mode, I use them in Direct Mode.

So, four years later to the day, I have a similar question.  A production is bringing in 150 LED tube fixtures.  They are planning to use them in a 16bit HSI mode.  As I am looking at it, I think that I would be better in a 16bit RGB mode.  I know RGB mixing better, and I know how to manipulate colors to create the color path that I want.

Here are the questions-

1.)  Is the new color system in v8.2 able to allow fading Hue on both paths?  Also, if I fade a palette live, will it go just the logical path as opposed to most color smart?

2.)  Other than saving 300 DMX addresses (150units x 2 ch/each), is there an advantage to HSI that I am not getting?  

3.)  Will HSI work with Image Effects?  On FB, Oskar wasn't sure that it would.  On the MS to set up an Image Effect Layout, it only has an RGB pixel.

Thanks,

John

1) Unfortunately no, Hue is still faded 'natively' - around the Hue circle.
8.2 adds the colour picker side, it doesn't affect playback.

3) HSI will not work with Image Effects.
In 8.2 and earlier it only drives RGB and CMY colour mixing.

That probably answers your (2).

As to 2) "It Depends".

HSI (16b Hue) has nicer intensity fades than RGB (8bit) (due to 'virtual' intensity), but worse colour fades.
- 8bit RGB has a visible colour shift during up/downfade, as it doesn't have the extra byte.

Given 4 DMX slots, Intensity+RGB is the best as it uses the same or fewer DMX slots than any worthwhile HSI and has good fades in both colour and intensity.

16bit RGB doesn't suffer the colour shift of 8bit RGB - but of course, it uses 6 slots.