SKShader.CreateCompose Method

Definition

Overloads

Examples

var info = new SKImageInfo(256, 256);
using (var surface = SKSurface.Create(info)) {
    SKCanvas canvas = surface.Canvas;

    canvas.Clear(SKColors.White);

    // create the first shader
    var colors = new SKColor[] {
        new SKColor(0, 255, 255),
        new SKColor(255, 0, 255),
        new SKColor(255, 255, 0),
        new SKColor(0, 255, 255)
    };
    var sweep = SKShader.CreateSweepGradient(new SKPoint(128, 128), colors, null);

    // create the second shader
    var turbulence = SKShader.CreatePerlinNoiseTurbulence(0.05f, 0.05f, 4, 0);

    // create the compose shader
    var shader = SKShader.CreateCompose(sweep, turbulence, SKBlendMode.SrcOver);

    // use the compose shader
    var paint = new SKPaint {
        Shader = shader
    };
    canvas.DrawPaint(paint);
}

The example above produces the following:

Remarks

Create a new compose shader, which combines two shaders by a blend mode.

public static SkiaSharp.SKShader CreateCompose (SkiaSharp.SKShader shaderA, SkiaSharp.SKShader shaderB);

public static SkiaSharp.SKShader CreateCompose (SkiaSharp.SKShader shaderA, SkiaSharp.SKShader shaderB, SkiaSharp.SKBlendMode mode);