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    Rendering Overview

    Rendering Overview

    The rendering system in Flax Engine uses the full power of the latest Graphics APIs (DirectX 12, Vulkan, etc.) pipeline to create rich effects including deferred shading, global illumination, full-scene reflections, and post processing.

    Rendering flow

    Single frame rendering flow is shown in a graph below.

    Rendering Flow

    Upscaling with Rendering Percentage

    Flax supports performing scene rendering in lower resolution and upscaling the image into the window backbuffer. This allows improving game performance on slower devices. It can be configured via the RenderingPercentage property (per SceneRenderTask). To change the resolution scale for the game viewport use MainRenderTask.Instance.RenderingPercentage (you can preview it in the Graphics Quality window in the Editor). It's a scale of the rendering resolution relative to the output dimensions. If lower than 1 the scene and postprocessing will be rendered at a lower resolution and upscaled to the output backbuffer.

    Flax performs upscaling by default using Catmull-Rom filtering with 9-taps. For more advanced upscaling you can use the open-source AMD FidelityFX Super Resolution plugin for Flax Engine.

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