export declare enum Location {
    BARYCENTRIC = 0,
    POSITION = 1
}
export declare const vert = "\nlayout(std140) uniform SceneUniforms {\n  mat3 u_ProjectionMatrix;\n  mat3 u_ViewMatrix;\n  mat3 u_ViewProjectionInvMatrix;\n  vec4 u_BackgroundColor;\n  vec4 u_GridColor;\n  float u_ZoomScale;\n  float u_CheckboardStyle;\n};\n\n\n#ifdef USE_WIREFRAME\n  layout(location = 0) in vec3 a_Barycentric;\n  out vec3 v_Barycentric;\n#endif\n\nlayout(location = 1) in vec2 a_Position;\n\nlayout(std140) uniform ShapeUniforms {\n  mat3 u_ModelMatrix;\n  vec4 u_FillColor;\n  vec4 u_StrokeColor;\n  vec4 u_ZIndexStrokeWidth;\n  vec4 u_Opacity;\n};\n\nvoid main() {\n  \n#ifdef USE_WIREFRAME\n  v_Barycentric = a_Barycentric;\n#endif\n\n\n  mat3 model;\n  vec4 fillColor;\n  vec4 strokeColor;\n  float zIndex;\n  float strokeWidth;\n  float strokeAlignment;\n  float sizeAttenuation;\n  model = u_ModelMatrix;\n  fillColor = u_FillColor;\n  strokeColor = u_StrokeColor;\n  zIndex = u_ZIndexStrokeWidth.x;\n  strokeWidth = u_ZIndexStrokeWidth.y;\n  strokeAlignment = u_ZIndexStrokeWidth.w;\n  sizeAttenuation = u_Opacity.w;\n\n  float scale = 1.0;\n  if (sizeAttenuation > 0.5) {\n    scale = 1.0 / u_ZoomScale;\n  }\n\n  gl_Position = vec4((u_ProjectionMatrix \n    * u_ViewMatrix\n    * model \n    * vec3(a_Position * scale, 1)).xy, zIndex, 1);\n}\n";
export declare const frag = "\nlayout(std140) uniform SceneUniforms {\n  mat3 u_ProjectionMatrix;\n  mat3 u_ViewMatrix;\n  mat3 u_ViewProjectionInvMatrix;\n  vec4 u_BackgroundColor;\n  vec4 u_GridColor;\n  float u_ZoomScale;\n  float u_CheckboardStyle;\n};\n\nlayout(std140) uniform ShapeUniforms {\n  mat3 u_ModelMatrix;\n  vec4 u_FillColor;\n  vec4 u_StrokeColor;\n  vec4 u_ZIndexStrokeWidth;\n  vec4 u_Opacity;\n};\n\n\n#ifdef USE_WIREFRAME\n  in vec3 v_Barycentric;\n\n  float edgeFactor() {\n    float u_WireframeLineWidth = 1.0;\n    vec3 d = fwidth(v_Barycentric);\n    vec3 a3 = smoothstep(vec3(0.0), d * u_WireframeLineWidth, v_Barycentric);\n    return min(min(a3.x, a3.y), a3.z);\n  }\n#endif\n\n\nout vec4 outputColor;\n\nfloat epsilon = 0.000001;\n\nvoid main() {\n  float strokeWidth;\n  vec4 fillColor;\n  vec4 strokeColor;\n  float opacity;\n  float fillOpacity;\n  float strokeOpacity;\n  float cornerRadius;\n  float strokeAlignment;\n  \n  fillColor = u_FillColor;\n  strokeColor = u_StrokeColor;\n  strokeWidth = u_ZIndexStrokeWidth.y;\n  opacity = u_Opacity.x;\n  fillOpacity = u_Opacity.y;\n  strokeOpacity = u_Opacity.z;\n  cornerRadius = u_ZIndexStrokeWidth.z;\n  strokeAlignment = u_ZIndexStrokeWidth.w;\n\n  // based on the target alpha compositing mode.\n  fillColor.a *= fillOpacity;\n  strokeColor.a *= strokeOpacity;\n  \n  outputColor = fillColor;\n  outputColor.a *= opacity;\n\n  \n#ifdef USE_WIREFRAME\n  vec3 u_WireframeLineColor = vec3(0.0, 0.0, 0.0);\n\n  outputColor.xyz = mix(outputColor.xyz, u_WireframeLineColor, (1.0 - edgeFactor()));\n  if (any(lessThan(v_Barycentric, vec3(0.01)))) {\n    outputColor.a = 0.95;\n  }\n#endif\n\n\n  #ifndef USE_STENCIL\n    if (outputColor.a < epsilon)\n      discard;\n  #endif\n}\n";