export declare const scatterVertexShader = "\n  precision highp float;\n  precision mediump int;\n\n  attribute vec2 a_position;\n  attribute highp vec2 a_center;\n  attribute float a_size;\n  attribute mediump vec4 a_color;\n\n  varying mediump vec4 v_color;\n  varying mediump vec2 v_offset;\n  varying mediump float v_radius;\n\n  uniform highp vec2 u_resolution;\n\n  void main() {\n    float radius = a_size * 0.5;\n    vec2 point = a_center + a_position * radius;\n\n    vec2 clipSpace = (point / u_resolution) * 2.0 - 1.0;\n    gl_Position = vec4(clipSpace * vec2(1, -1), 0, 1);\n\n    v_color = a_color;\n    v_offset = a_position;\n    v_radius = radius;\n  }\n";
export declare const scatterFragmentShader = "\n  precision mediump float;\n\n  varying mediump vec4 v_color;\n  varying mediump vec2 v_offset;\n  varying mediump float v_radius;\n\n  void main() {\n    float dist = length(v_offset);\n    if (dist > 1.0) {\n      discard;\n    }\n    // Simple antialiased edge: fade the last pixel of the radius.\n    float edge = max(0.0, 1.0 - 1.0 / max(v_radius, 1.0));\n    float alpha = 1.0 - smoothstep(edge, 1.0, dist);\n    gl_FragColor = vec4(v_color.rgb, v_color.a * alpha);\n  }\n";