contrast brightness level

turrican3 · 08 February 2016, 21:07

Hi Toni,
don't you think that the difference of brightness and contrast between 0 and 1 or -1 is too high ??? There is no way for me control it quite precisely ?
I didn't test the last good version because i remember that you change it not so long, i think you remember when the change occur.
But if you need the last better version just tell me.
I just noticed that you can't see it really during the disk wait amiga boot picture, perhaps you set the levels with this ??
Just to show you : Alien Storm (1991)(U.S. Gold) sps quick-start amiga 500 (default)
1 (no changes)

2 brightness -1 (nothing else)

3 contract +1 (nothing else) i didn't forget to set back brightness to 0

ps: It's even like brightness -1 and contrast +1 seem do the same ???
I have the same results with any games.

Toni Wilen · 14 February 2016, 10:28

Color component based gamma value calculation was wrong, it caused too dark image if contrast or brightness value was non-zero. Will be fixed in next beta.

08 February 2016, 21:07	#1
turrican3 Moon 1969 = amiga 1985 Join Date: Apr 2007 Location: belgium Age: 48 Posts: 3,913	contrast brightness level Hi Toni, don't you think that the difference of brightness and contrast between 0 and 1 or -1 is too high ??? There is no way for me control it quite precisely ? I didn't test the last good version because i remember that you change it not so long, i think you remember when the change occur. But if you need the last better version just tell me. I just noticed that you can't see it really during the disk wait amiga boot picture, perhaps you set the levels with this ?? Just to show you : Alien Storm (1991)(U.S. Gold) sps quick-start amiga 500 (default) 1 (no changes) 2 brightness -1 (nothing else) 3 contract +1 (nothing else) i didn't forget to set back brightness to 0 ps: It's even like brightness -1 and contrast +1 seem do the same ??? I have the same results with any games. Attached Thumbnails

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14 February 2016, 10:28	#2
Toni Wilen WinUAE developer Join Date: Aug 2001 Location: Hämeenlinna/Finland Age: 49 Posts: 26,505	Color component based gamma value calculation was wrong, it caused too dark image if contrast or brightness value was non-zero. Will be fixed in next beta.

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