Pixel Joint Forum: Question on bit depth and Cosmigo Pro Motion

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   So I bought a book to learn more about pixel art. Just a warning, I am an EXTREME beginner, but pixel art fascinates the heck out of me and I'd really like to become good at this new hobby.

So, back to my point. I bought this:

https://www.amazon.com/Pixel-Game-Developers-Daniel-Silber/dp/1482252309/ref=sr_1_1?ie=UTF8&qid=1493179049&sr=8-1&keywords=pixel+art+for+game+developers

My question might be basic, but it's this:

http://imgur.com/a/jDqQl

This picture I took from the book is referring to Graphics Gale, I decided based on some research that I would like to go with Pro Motion. To my question: Note near the bottom of the page, the book instructs the reader to create a new file and choose a 4bit color depth to restrict the colors to 8.

When I try to do this in Cosmigo Pro Motion, the software wants to restrict color depth on a per-channel basis.

Here is what I get in Pro Motion:

http://imgur.com/a/xy9V0

Note that when I set the bit to 2 on each channel, I still get quite a few colors.... How do I restrict to 8 colors, or, maybe I should ask this way, "how do I set the bit depth to 4 'globally' and not on a per-channel basis"

I hope I'm conveying my question properly here... 

Thanks ahead of time!

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SynPDX Seaman Joined: 25 April 2017 Online Status: Offline Posts: 1	Topic: Question on bit depth and Cosmigo Pro Motion Posted: 27 April 2017 at 9:03pm
	So I bought a book to learn more about pixel art. Just a warning, I am an EXTREME beginner, but pixel art fascinates the heck out of me and I'd really like to become good at this new hobby. So, back to my point. I bought this: https://www.amazon.com/Pixel-Game-Developers-Daniel-Silber/dp/1482252309/ref=sr_1_1?ie=UTF8&qid=1493179049&sr=8-1&keywords=pixel+art+for+game+developers My question might be basic, but it's this: http://imgur.com/a/jDqQl This picture I took from the book is referring to Graphics Gale, I decided based on some research that I would like to go with Pro Motion. To my question: Note near the bottom of the page, the book instructs the reader to create a new file and choose a 4bit color depth to restrict the colors to 8. When I try to do this in Cosmigo Pro Motion, the software wants to restrict color depth on a per-channel basis. Here is what I get in Pro Motion: http://imgur.com/a/xy9V0 Note that when I set the bit to 2 on each channel, I still get quite a few colors.... How do I restrict to 8 colors, or, maybe I should ask this way, "how do I set the bit depth to 4 'globally' and not on a per-channel basis" I hope I'm conveying my question properly here... Thanks ahead of time!
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surt Commander Joined: 30 December 2015 Online Status: Offline Posts: 413	Posted: 28 April 2017 at 12:41am
	4-bit is 2^4 colours so sixteen. Pro Motion only supports 256 colour palettes. The channel bit depth limits affect the size of the colour space that you get your palette values from. If you want to limit yourself to sixteen colours, just don't use more than sixteen, or one row of the palette. The only disadvantage is that you can only fit one pixel in each byte rather than two (ignoring compression), but I imagine your storage isn't so tight that it'll be a problem. EDIT: Ignore that last sentence. I tested saving a 16 colour PNG in Pro Motion and opening in Graphics Gale it shows a 16 colour rather than 256 colour.

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