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Gordian
Registered: May 2022 Posts: 49 |
Effect based on the last visible raster line (PAL system)
Hello,
I've created simple effect which is based on bounce easing function. Maximum value is $12c (399) - this is last visible rasterline using full borders in VIC and is edge of bouncing.
Does it make sense to assume that the line is always visible (and very last) on every displaying PAL device? |
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chatGPZ
Registered: Dec 2001 Posts: 11281 |
No, you can't rely on specific dimensions of the border/image at all - every monitor is different.
Results we got after releasing Borderpolizei show that the last line may be in the range of $11b...$12b
Still $12c sounds like a decent choice for what you want to do :) |
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Gordian
Registered: May 2022 Posts: 49 |
Quote:
Still $12c sounds like a decent choice for what you want to do :)
If it may happen that the area between $11c and $12b will be cut off I might as well just throw the idea away now.
Thanks for the link! |
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chatGPZ
Registered: Dec 2001 Posts: 11281 |
you could just move up the effect a bit? |
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Gordian
Registered: May 2022 Posts: 49 |
Quote: you could just move up the effect a bit?
No:) It is based on the assumption that there is nothing visible below "the last line" (and vice versa - visible screen area is placed above). |
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Raistlin
Registered: Mar 2007 Posts: 622 |
The reason Commodore, and others, had a border in the first place is that the edges of the screen are unreliable on old TVs. Even if you bought the same TV, same version, etc etc, you could get variances.
Commodore were OTT with the size of the border, sure, but some of it is aesthetics too.
I always test demo stuff in “full” border mode on VICE, to make sure there’s no badness outside the normal view. Then I aim for “normal” border mode. Check Bonzai’s all-border DYPP in Unboxed to see a mistake in not testing on “full” border mode :-) |
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WVL
Registered: Mar 2002 Posts: 889 |
Quote: Quote:
Still $12c sounds like a decent choice for what you want to do :)
If it may happen that the area between $11c and $12b will be cut off I might as well just throw the idea away now.
Thanks for the link!
You could allow the 'user' to calibrate the effect? 'Move ball down with joystick until it touches the lower edge of the screen'. |
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Gordian
Registered: May 2022 Posts: 49 |
Quote: You could allow the 'user' to calibrate the effect? 'Move ball down with joystick until it touches the lower edge of the screen'.
Hmm... The effect is basic screen fader, so it could be slightly irritating:)
I'm just gonna use other easing function, without bouncing. |
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Gordian
Registered: May 2022 Posts: 49 |
Is there any possibility to set range of full borders in VICE? Or it could be an option for the future? |
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Jetboy
Registered: Jul 2006 Posts: 265 |
There are 3 presets. |
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Gordian
Registered: May 2022 Posts: 49 |
Quote: There are 3 presets.
Jetboy, where can I find them? |
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Krill
Registered: Apr 2002 Posts: 2940 |
Quoting RaistlinCommodore were OTT with the size of the border, sure, but some of it is aesthetics too. No. Have a look at NTSC output - borders are rather small.
PAL border sizes are most likely an artefact of technical constraints like 320x200 main window vs. pixel clock vs. PAL specs. |
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Jetboy
Registered: Jul 2006 Posts: 265 |
Quote: Jetboy, where can I find them?
preferences/settings/display/vic-ii/border mode
Sorry it took so long, but i was away from my vice. |
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Gordian
Registered: May 2022 Posts: 49 |
Quote: preferences/settings/display/vic-ii/border mode
Sorry it took so long, but i was away from my vice.
Thanks, I know it:) But I'm looking for possibility of changing range of "full border" option which is by default set to $008-$12c. |