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snapdragon-gsr

Snapdragon Game Super Resolution for Unity BIRP

For more information and up-to-date versions, check the official GSR git page: Snapdragon GSR GitHub

Quick Readme (also included in the HLSL file)

SGSR is used the same way FSR1 is used. Like this:

• Call SGSR pass right after you anti-alias (if) your image and before applying any kind of noise or grain to it
• Provide a low ress RT (the size you are rendering your scene) to the SGSR pass.

Note: Keep in mind your viewport/screen size must be the size you want to upscale (max up to 2x).

Integration:

1. Include the sgsr_mobile.hlsl file in your post-process shader.

2. Use the UNITY_DECLARE_TEX2D Macro as it takes care of both the Texture and Sampler declaration, like so:

   UNITY_DECLARE_TEX2D(_MainTex);
   

3. Declare this additional sampler. I believe the one declared with the UNITY_DECLARE_TEX2D macro is enough, but just in case:

   SamplerState sampler_LinearClamp;
   

4. Call the SgsrYuvH function in your post-process fragment shader.

Function Parameters Explanation:

• ViewportInfo: Should be a float4 containing {1.0/screen_width, 1.0/screen_height, screen_width, screen_height}.
  • The xy components will be used to shift UVs to read adjacent texels.
  • The zw components will be used to map from UV space [0, 1][0, 1] to image space [0, w][0, h].
• color: Your your final filtered image
• i.uv: Screen space UVs.

Example usage:

half4 color = half4(0, 0, 0, 1);
SgsrYuvH(color, i.uv, ViewportInfo);