@luma.gl/effects/dist/passes/postprocessing/image-fun-filters/magnify.d.ts

Post-processing effects for luma.gl

/**
 * Magnify - display a circle with magnify effect applied to surrounding the pixels given position
 */
export type MagnifyProps = {
    /** x, y position in screen coords, both x and y is normalized and in range `[0, 1]`. `[0, 0]` is the up left corner, `[1, 1]` is the bottom right corner. Default value is `[0, 0]`. */
    screenXY?: [number, number];
    /** effect radius in pixels. Default value is `100`. */
    radiusPixels?: number;
    /** magnify level. Default value is `2`. */
    zoom?: number;
    /** border width of the effect circle, will not show border if value <= 0.0. Default value is `0`. */
    borderWidthPixels?: number;
    /** border color of the effect circle. Default value is `[255, 255, 255, 255]`. */
    borderColor?: [number, number, number, number];
};
export type MagnifyUniforms = MagnifyProps;
/**
 * Magnify - display a circle with magnify effect applied to surrounding the pixels given position
 */
export declare const magnify: {
    readonly name: "magnify";
    readonly source: "uniform magnifyUniforms {\n  screenXY: vec2f;\n  radiusPixels: f32;\n  zoom: f32;\n  borderWidthPixels: f32;\n  borderColor: vec4f;\n};\n\n@group(0) @binding(1) var<uniform> magnify: magnifyUniforms;\n\nfn magnify_sampleColor(sampler2D source, vec2 texSize, vec2 texCoord) -> vec4f {\n  vec2 pos = vec2(magnify.screenXY.x, 1.0 - magnify.screenXY.y);\n  float dist = distance(texCoord * texSize, pos * texSize);\n  if (dist < magnify.radiusPixels) {\n    return texture(source, (texCoord - pos) / magnify.zoom + pos);\n  }\n\n  if (dist <= magnify.radiusPixels + magnify.borderWidthPixels) {\n    return magnify.borderColor;\n  }\n  return texture(source, texCoord);\n}\n";
    readonly fs: "uniform magnifyUniforms {\n  vec2 screenXY;\n  float radiusPixels;\n  float zoom;\n  float borderWidthPixels;\n  vec4 borderColor;\n} magnify;\n\nvec4 magnify_sampleColor(sampler2D source, vec2 texSize, vec2 texCoord) {\n  vec2 pos = vec2(magnify.screenXY.x, 1.0 - magnify.screenXY.y);\n  float dist = distance(texCoord * texSize, pos * texSize);\n  if (dist < magnify.radiusPixels) {\n    return texture(source, (texCoord - pos) / magnify.zoom + pos);\n  }\n\n  if (dist <= magnify.radiusPixels + magnify.borderWidthPixels) {\n    return magnify.borderColor;\n  }\n  return texture(source, texCoord);\n}\n";
    readonly uniformTypes: {
        readonly screenXY: "vec2<f32>";
        readonly radiusPixels: "f32";
        readonly zoom: "f32";
        readonly borderWidthPixels: "f32";
        readonly borderColor: "vec4<f32>";
    };
    readonly propTypes: {
        readonly screenXY: {
            readonly value: readonly [0, 0];
        };
        readonly radiusPixels: 200;
        readonly zoom: 2;
        readonly borderWidthPixels: 0;
        readonly borderColor: {
            readonly value: readonly [255, 255, 255, 255];
        };
    };
    readonly passes: [{
        readonly sampler: true;
    }];
};
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