FXAA (Fast Approximate AA)

FXAA is a post-processing (Post-Processing) antialiasing technique that analyzes the rendered image to find edges and smooth them.

1. Features & Pros

• Ultra-Fast: Very low computational cost, making it ideal for mobile devices and low-end hardware.
• Memory Efficient: Does not require additional buffers like MSAA.
• Cons: The entire screen may appear slightly blurry, which can reduce texture sharpness.

2. Usage

Enabled via antialiasingManager.useFXAA. Enabling this automatically disables MSAA or TAA.

// Enable FXAA (Other AAs are disabled)
redGPUContext.antialiasingManager.useFXAA = true;

3. Live Example: FXAA Quality Check

Observe how FXAA handles not only geometry edges but also shimmering in textures and highlights.

Key Summary

• Post-Processing: Works on top of the rendered image.
• Exclusive: Enabling FXAA disables MSAA and TAA.
• Global Control: Controlled via redGPUContext.