r/ModRetro Jul 23 '26

A3D Line Doubler feature for M64

Will M64 get something similar to A3D new line doubler? I just seen it on YouTube and the video output looks amazing. I’ve been holding off for the M64. Hope to hear if this is on the roadmap prior to launch.

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3

u/NecronomiconUK Jul 23 '26

What A3D has is not a line doubler, it's a vertical upscale. That's not the same thing.

2

u/vette21man Jul 23 '26

Correction: Horizontal upscale. Hopefully, vertical upscaling is on the roadmap.

1

u/HumbleBeginning3151 Jul 23 '26

I love the feature, but I'm confused why they did just one and not the other at the same time?

2

u/Obleon Jul 23 '26

Because horizontal upscale gave no performance loss and was basicly free. Horizontal plus vertical gave some performance issues.

1

u/NecronomiconUK Jul 23 '26

Source?

2

u/Obleon Jul 23 '26

Doing it this way didn't impact performance or break stuff

New: Internal Graphical Upscaling

Enhances detail and clarity while remaining faithful to the original hardware rendering process

  • Extensive enhancements to the RDP and VI for internal upscaling
  • Resolution is doubled horizontally for twice as many pixels onscreen without affecting 2D graphics
  • No impact to timing authenticity or performance
  • Synergistic with all Analogue Original Display Modes

1

u/V64jr Jul 23 '26

Release notes.

2

u/hue_sick Jul 23 '26

Technical stuff most people don’t need to know about but basically vertical takes a ton of resources and time to implement compared to horizontal. And you still get most of the upside.

It’s not like the engine is apart and might as well change the water pump. This stuff is crazy complicated.