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Document new shader settings window

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RichardG867
2022-03-18 23:53:40 -03:00
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usage/menubar.rst
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* **SDL (Software)** and **SDL (OpenGL)** are known to perform better on some host systems. Try these if your system is struggling to maintain 100% emulation speed.
* **OpenGL (3.0 Core)** allows for shader effects to be applied to the emulated display, however, it is not compatible with older integrated GPUs.
* **OpenGL options:** configure the *OpenGL (3.0 Core)* renderer. This submenu will be available if that renderer is selected.
* **Renderer options:** open a window to configure the *OpenGL (3.0 Core)* renderer. This option will be available if that renderer is selected.
* **Target framerate:** select the framerate at which the emulated display is updated. *Sync with video* uses the emulated display's current refresh rate.
* **Target framerate:** select the framerate at which the emulated display is updated. *Synchronize with video* automatically uses the emulated display's current refresh rate.
* **VSync:** enable vertical sync. Recommended if tearing artifacts are observed.
* **Select shader:** load a .glsl shader file to apply on the emulated display. Many shaders are available for simulating CRT displays, VHS tapes and other aesthetics; the `RetroArch glsl-shaders repository <https://github.com/libretro/glsl-shaders>`_ is a good place to start.
* **Remove shader:** disable the currently-loaded shader.
* **Browse:** add a ``.glsl`` shader file to the list of shaders applied to the emulated display.
* **Remove:** remove the selected shader file from the list.
.. note:: * Shaders that take advantage of multipass and previous frames are not supported.
.. note:: * Many shaders are available for simulating CRT displays, VHS tapes and other aesthetics; the `RetroArch glsl-shaders repository <https://github.com/libretro/glsl-shaders>`_ is a good place to start.
* Shaders that take advantage of multipass and previous frames are not supported.
* ``.cg`` and ``.cgp`` shaders are not supported either, as these formats are long deprecated.
* **Specify dimensions:** open a window where an exact size (in pixels) for the emulated display can be set. If checked, the *Lock to this size* box prevents changes in the emulated display's resolution from overriding the specified size.