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MAME work and other stuff
August 10, 2015 Haze Categories: General News. 6 Comments on Additive Kombat

If you’ve been following the GIT you might have noticed that MooglyGuy checked in a change to the Midway Zeus driver to improve the blending / transparency effects in Mortal Kombat 4.

Mortal Kombat 4 makes rather heavy using of the blending in places, applying it to a large number of particle effects, projectiles etc.

Pictures convey this far better words, so in short we’ve gone from this

Mortal Kombat 4

to this

Mortal Kombat 4

He advises me to make clear that the code is still a little hacky (the bit that controls the blending hasn’t been fully isolated) so it might not alwas be 100% correct, but as you can see, his work has made a dramatic improvement to the visuals in a driver that had been left untouched for far too long.

Note, this doesn’t improve Crusin’ Exotica, that runs on Zeus 2 which is significantly different.


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Pretty good. Pretty, pretty, pretty, pretty good.™

Haze, you are completely wrong about Windows 10. It is faster than Windows 7. It doesn’t matter if you upgrade or do a clean install. I upgraded and saw programs that used to run at 47fps run at 60fps.

The performance difference is actually pretty huge, because 8 was faster than 7, and 10 is faster than 8.

You think that Windows 7 wasn’t collecting telemetry data? It was. The only difference is that they didn’t give you a UI to turn any of it off.

Wow, Mortal Kombat 4! It must be one of those games that will require 20 years of CPU progress to get decent speed :) (not to be interpreted as an attack to MAME developers).
I’m eternally grateful to everybody who contributes to MAME.

That’s awesome! Can we get any improvement for this game? It’s been almost 20 years haha In addition, the graphics are still glitchy, even with the transparency fix…anyway to get them to look like they should? Many thanks for your work and progress.


Any chance of seeing new snapshots comparing the recent work by Phil Bennett?

the improvements aren’t quite as dramatic, although they do tidy up some (but not all) cases where the arenas would end up obstructing the view, which is handy.

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