// This file is generated. Edit build/generate-shaders.ts, then run `npm run codegen`.
export default 'uniform vec4 u_sky_color;uniform vec4 u_horizon_color;uniform vec2 u_horizon;uniform vec2 u_horizon_normal;uniform float u_sky_horizon_blend;uniform float u_sky_blend;uniform vec3 u_globe_position;uniform float u_globe_radius;uniform float u_atmosphere_blend;in vec3 v_view_direction;const float ATMOSPHERE_HEIGHT_TO_GLOBE_RADIUS=100000.0/6371000.0;void main() {float x=gl_FragCoord.x;float y=gl_FragCoord.y;float blend=(y-u_horizon.y)*u_horizon_normal.y+(x-u_horizon.x)*u_horizon_normal.x;float opacity=1.0;if (u_sky_blend > 0.0) {vec3 ray=normalize(v_view_direction);float globe_distance=length(u_globe_position);float angle_to_globe_center=acos(clamp(dot(ray,u_globe_position)/globe_distance,-1.0,1.0));float horizon_angle=asin(min(u_globe_radius/globe_distance,1.0));blend=mix(blend,((angle_to_globe_center-horizon_angle)*u_camera_to_center_distance+1.0)*u_device_pixel_ratio,u_sky_blend);float closest_approach=max(dot(ray,u_globe_position),0.0);float lowest_altitude=sqrt(max(globe_distance*globe_distance-closest_approach*closest_approach,0.0))-u_globe_radius;float atmosphere_height=u_globe_radius*ATMOSPHERE_HEIGHT_TO_GLOBE_RADIUS;float inside_atmosphere=1.0-smoothstep(atmosphere_height,10.0*atmosphere_height,globe_distance-u_globe_radius);float through_atmosphere=1.0-smoothstep(0.0,atmosphere_height,lowest_altitude);opacity=inside_atmosphere*through_atmosphere*(1.0-u_atmosphere_blend);}if (blend > 0.0) {if (blend < u_sky_horizon_blend) {fragColor=mix(u_sky_color,u_horizon_color,pow(1.0-blend/u_sky_horizon_blend,2.0));} else {fragColor=u_sky_color;}}fragColor*=mix(1.0,opacity,u_sky_blend);}';