ResolutionControl+

ResolutionControl+ is a fork of Resolution Control
with additional functionality.

Features

Resolution Scaling

ResolutionControl+ allows you to change Minecraft's render resolution separately from the HUD elements.
If you have a good GPU, you can increase the multiplier for anti-aliasing.
Otherwise, you can lower the multiplier to improve performance or give Minecraft a retro style.
You can also set a custom multiplier value by pressing the S button.

Additionally, you can set the upscale/downscale algorithm used to scale the render to the viewport.
Linear is useful as an anti-aliasing filter,
and nearest neighbor generally looks better for lower than native resolutions.

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Screenshots

ResolutionControl+ can be used to take larger than native resolution screenshots.
To do this, use the Screenshot Framebuffer keybind which is unbound by default.

Compared to Fabrishot, this implementation does not lock up the game until the screenshot is saved.
This makes taking large screenshots much faster.
And while a screenshot is being processed, you can take another one without any problems.

Here is the time it takes to take a 16k screenshot, on an i7 4770 and GTX 1060:

Fabrishot: 12 seconds (pause)

ResolutionControl+: <1 second (initial pause) + 13 seconds (background processing)

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Settings

Resolution Scaling

• Render scale
  • 0.0 - 8.0x (can be exceeded by manually setting the value)
  • An estimate VRAM usage is displayed
• Upscale/downscale algorithm
  • Linear, nearest

Screenshots

• Use set size
  • Enabled: render screenshots at the specified resolution
    • Note: can produce artifacts if the screenshot aspect ratio is significantly different
      from the aspect ratio of the viewport
  • Disabled: render at the scaled render resolution
• Always allocated
  • Enabled: screenshot framebuffer is always allocated in memory
    • May reduce screenshot pause times, at the cost of more VRAM usage during normal gameplay
  • Disabled: screenshot framebuffer is allocated on-demand and freed immediately after
• Screenshot size
  • Screenshot size if use set size is enabled
  • An estimate VRAM usage is displayed

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Compatibility

Currently, ResolutionControl+ does not work with Fabulous Graphics.

Sodium - Compatible

Canvas Renderer - Mostly compatible, lower resolutions break HUD item rendering

Optifine - Compatible, stacks with its own render scale implementation