https://github.com/michaelosthege/viewportreplicator

A small app to move & rotate a DCS viewport
https://github.com/michaelosthege/viewportreplicator

dcs-world dcsworld flight-simulation helios

Last synced: 8 months ago
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A small app to move & rotate a DCS viewport

• Host: GitHub
• URL: https://github.com/michaelosthege/viewportreplicator
• Owner: michaelosthege
• License: agpl-3.0
• Created: 2023-10-12T19:42:32.000Z (almost 2 years ago)
• Default Branch: main
• Last Pushed: 2023-10-15T18:20:17.000Z (almost 2 years ago)
• Last Synced: 2024-12-27T14:41:13.363Z (9 months ago)
• Topics: dcs-world, dcsworld, flight-simulation, helios
• Language: C#
• Homepage:
• Size: 24.2 MB
• Stars: 0
• Watchers: 3
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.txt

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README

          
# What is this?

The `ViewportReplicator`, replicates a DCS World viewport and rotates it 180° to a specified region on the screen.

This is useful for DIY MFD screens using LCDs such as the CLAA070MA0ACW which must be rotated upside down for good image quality, but have a controller (PCB800099-v9) which does not respect the display orientation setting set by Windows.

Known alternatives to this option are:

+ [Helios](https://github.com/HeliosVirtualCockpit/Helios) with a "Screen Replicator", but this has much lower FPS & does not support placement in the same spot.

+ [Helios](https://github.com/HeliosVirtualCockpit/Helios) with a "Screen Replicator (Adjustable)", which might be faster, but likely also does not support placement in the same spot.

## How this works

It uses [Direct3DHook](https://github.com/justinstenning/Direct3DHook) to grab screenshots from the original viewport area from the DirectX "backbuffer".

Starting from the following `DualMFD.lua` monitor configuration:

```lua

_  = function(p) return p end

name = _('4K_DualMFD')

description = '4K main monitor with dual 800x600 MFDs to the right.'

-- DO NOT USE CALCULATED COORDINATES because the Viewport Rotator only uses regex..

FA_18C_LEFT_MFCD = { x = 3940, y = 0, width = 600, height = 595 }

FA_18C_RIGHT_MFCD = { x = 3960, y = 600, width = 600, height = 595 }

Viewports = {

  Center = {

    x = 0,-- The HORIZONTAL starting location of the main display

    y = 0,-- The starting VERTICAL position of the main display

    width = 3840,-- The HORIZONTAL size of the main display

    height = 2160,-- The VERTICAL size of the main display

    aspect = 3840 / 2160,-- The aspect ratio of the main display

    dx = 0,

    dy = 0

  }

}

UI = { x = 0, y = 0, width = 3840, height = 2160 }

UIMainView = UI

GU_MAIN_VIEWPORT = Viewports.Center

```

And these settings in the app:

![](docs/screenshot_window.png)

It sreenshots the viewport in the original DCS output, marked in this screenshot by the yellow box.

![](docs/screenshot_original.png)

After clicking `Activate`, the app window resizes & positions itself in the specified area, with an image showing the screenshots rotated by 180°:

![](docs/screenshot_rotated.png)

The default values for the viewport ID, and output area are currently hard-coded to my setup, but if this is useful for someone I'm open to PRs that make changes persistent.

And if someone wants to do a PR to put this into Helios that'd be great too!