SKSL Script

Defines a custom filter effect using a SkiaSharp Shading Language (SKSL) shader. Runs as a per-pixel program through Skia.

Library location

Library → Filter Effect → Script → SKSL Script

Properties

Script

The SKSL shader source.

• Type: string
• Default:

  uniform shader src;
  uniform float progress;  // 0.0 - 1.0
  uniform float duration;  // seconds
  uniform float time;      // seconds
  uniform float width;     // render target width
  uniform float height;    // render target height
  // Also available:
  // uniform float2 iResolution;
  // uniform float iTime;
  
  half4 main(float2 fragCoord) {
      half4 c = src.eval(fragCoord);
      return c;
  }

• Animatable: No

Usage

Provide a main(float2 coord) → half4 shader. The source layer is provided through src and animatable parameters are passed as uniforms.

Source

src/Beutl.Engine/Graphics/FilterEffects/SKSLScriptEffect.cs