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General discussionDOSBox Daum & scan lines(10 posts)solved(10 posts)solved
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Posted July 18, 2020
I read somewhere that DOSBox Daum can remove scan lines (Blur? Extrapolate?). Any idea what setting I should be using?
This question / problem has been solved by crimson_twilightimage
Posted July 18, 2020
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teceem: I read somewhere that DOSBox Daum can remove scan lines (Blur? Extrapolate?). Any idea what setting I should be using?
Get yourself a pair of these:
https://www.amazon.co.uk/dp/B01M0ZM2QJ?tag=duckduckgo-iphone-uk-21&linkCode=osi&th=1&psc=1

Sorry, if it doesn’t say turn scan lines off I am not sure you will get far.
Posted July 18, 2020
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teceem: I read somewhere that DOSBox Daum can remove scan lines (Blur? Extrapolate?). Any idea what setting I should be using?
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nightcraw1er.488: Get yourself a pair of these:
https://www.amazon.co.uk/dp/B01M0ZM2QJ?tag=duckduckgo-iphone-uk-21&linkCode=osi&th=1&psc=1

Sorry, if it doesn’t say turn scan lines off I am not sure you will get far.
Aren't those for watching movies in 3D?
Posted July 18, 2020
what are scan lines?
Posted July 19, 2020
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nightcraw1er.488: Get yourself a pair of these:
https://www.amazon.co.uk/dp/B01M0ZM2QJ?tag=duckduckgo-iphone-uk-21&linkCode=osi&th=1&psc=1

Sorry, if it doesn’t say turn scan lines off I am not sure you will get far.
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teceem: Aren't those for watching movies in 3D?
Yes, but I thought the lines would fit in :o)
Posted July 19, 2020
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Truth007: what are scan lines?
Here's a screenshot of this specific game...
Around the mid 90s, digital video was still young - decoding it needed a lot of CPU. By removing every other line, video size (disk space) was cut in half. (size & processing power needed for decoding is directly related)
Attachments:
borg.jpg (264 Kb)
Post edited July 19, 2020 by teceem
Posted July 19, 2020
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teceem: I read somewhere that DOSBox Daum can remove scan lines (Blur? Extrapolate?). Any idea what setting I should be using?
This may have been the thread you had seen.
https://www.gog.com/forum/phantasmagoria_series/workaround_for_black_scanlines_in_phantasmagoria_2

Haven't tried it myself, but the author has created a custom Shader for de interlacing scanlines that's included in the post!

Oh and as a side note regarding DOSBox Daum. There are some systems that have trouble with stability with any version of Daum past the Feb 20, 2012 release. So it may be worth downloading the 20120220 release found under the "older releases" if you indeed run into said stability issues.

And as a random thought, I wonder how hard it would be for someone with programming experience to port this shader to the current DOSBox .glsl standard....
Post edited July 19, 2020 by crimson_twilight
Posted July 19, 2020
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teceem: I read somewhere that DOSBox Daum can remove scan lines (Blur? Extrapolate?). Any idea what setting I should be using?
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crimson_twilight: This may have been the thread you had seen.
https://www.gog.com/forum/phantasmagoria_series/workaround_for_black_scanlines_in_phantasmagoria_2

Haven't tried it myself, but the author has created a custom Shader for de interlacing scanlines that's included in the post!

Oh and as a side note regarding DOSBox Daum. There are some systems that have trouble with stability with any version of Daum past the Feb 20, 2012 release. So it may be worth downloading the 20120220 release found under the "older releases" if you indeed run into said stability issues.

And as a random thought, I wonder how hard it would be for someone with programming experience to port this shader to the current DOSBox .glsl standard....
Thanks, that worked great!!
It also makes everything non-video "fuzzy"... but it's not that big of a deal in a FMV game.
Posted July 20, 2020
I thought Daum was moribund?

Why not give Staging a try?
Posted July 20, 2020
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Darvond: I thought Daum was moribund?

Why not give Staging a try?
Normally the latest DOSBox releases, DOSBox Staging among them, are indeed the better choice. Unless you need a feature that the newer ones don't have.

In this case the author that wrote the De-interlacing Shader wrote it for Direct3D in the .fx format that Daum supports.
Most current DOSBox compilations use OpenGL Shaders in the .glsl format.

As I mentioned earlier in the thread, it would be interesting if someone would be able to port this Shader over to the .glsl standard. As I don't know if anything equivalent is available at this time?
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General discussionDOSBox Daum & scan lines(10 posts)solved(10 posts)solved
(10 posts)solved