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uman
MAME Fan
Reged: 04/15/12
Posts: 290
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Need help for Vectrex Overlay Files
09/01/16 10:44 AM


Hi,

I have vectorized now over the half of the full (official) set from Vectrex, but i am not satisfied with the tint result. I would like to have a tint effect like in this picture:



Notice that the drawn vectors are only slightly tinted by the color of the overlay.

My Overlay files currently looks like this:



*note: this not the actual quality, the files are way sharper and 4k resolution, but my image hoster doesnt allow anything above 1024 pixels. Feel free to tell me one, that is free and can do more .

As you see, the vectors are tinted completely, no matter how transparent i make the overlay sections (done in Photoshop with 20% transparency in this case here).
Now R. Belmont told me that there is a alpha parameter that may control the tint effect.

I have gone through this documentation:
http://wiki.mamedev.org/index.php/Layouts_and_Rendering_for_MAME_Artwork_System

and this:
http://wiki.mamedev.org/index.php/LAY_File_Basics_-_Part_I

but i understand it only partially and i am really sorry for this. I did a lot of tests yesterday, with the colorvalues and and the alpha parameter, only to find out, that it does quite the opposite of what i want to achieve. I had some success by using very bright (nearly white) overlay colors in conjunction with HLSL and the floor parameter, but this method have the downside that the overlay colours would change to a degree, that the whole thing is not accurate anymore and would way to far differ from the colors of a original overlay file. Just look at the first picture, it has a deep, dark green and blue color, but the drawn vectors are only very lightly tinted.

If someone is good at this, he can do me a favor and create a example with the current artwork Vectrex .lay file, that would be nice. I need only one game, just to understand the logic. Thx in advance.

Maybe its also just not possible to create a very light tint, i dont know. I wished we would have blending options like the ones in Photoshop (overlay, color dodge etc.).







Entire thread
Subject Posted by Posted on
* Need help for Vectrex Overlay Files uman 09/01/16 10:44 AM
. * Re: Need help for Vectrex Overlay Files Mr. DoAdministrator  09/02/16 10:52 AM
. * Re: Need help for Vectrex Overlay Files uman  09/02/16 01:29 PM
. * Re: Need help for Vectrex Overlay Files Mr. DoAdministrator  09/05/16 05:52 AM
. * Re: Need help for Vectrex Overlay Files uman  10/13/16 09:47 AM
. * Re: Need help for Vectrex Overlay Files Trebor  01/20/17 03:33 PM
. * Re: Need help for Vectrex Overlay Files uman  09/05/16 02:58 PM
. * Re: Need help for Vectrex Overlay Files uman  09/10/16 10:11 AM

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