English Amiga Board - View Single Post - 256 Colours, Chunky Vs Planar, what was better?

redblade · 13 October 2017, 09:50

I know the Amiga used Planar graphics, but for 256 colours, would chunky be the best format?

Planar, 40 bytes * 200 lines * 8 bitplanes = 64,000 bytes
Chunky, 1 bytes (from 00 - 256) * 320 pixels a line * 200 lines = 64,000 bytes.

It just seems like a lot of effort on a planar system having to go through every one of those 8 bitmaps to set the bit for a colour change? Trying to shift some sprites across seems like it would be a nightmare on a planar system. Is there any advantage of a 256 colour planar system?

Thanks

13 October 2017, 09:50	#1
redblade Zone Friend Join Date: Mar 2004 Location: Middle Earth Age: 35 Posts: 1,370	256 Colours, Chunky Vs Planar, what was better? I know the Amiga used Planar graphics, but for 256 colours, would chunky be the best format? Planar, 40 bytes * 200 lines * 8 bitplanes = 64,000 bytes Chunky, 1 bytes (from 00 - 256) * 320 pixels a line * 200 lines = 64,000 bytes. It just seems like a lot of effort on a planar system having to go through every one of those 8 bitmaps to set the bit for a colour change? Trying to shift some sprites across seems like it would be a nightmare on a planar system. Is there any advantage of a 256 colour planar system? Thanks