const LOD_COUNT: u32 = 5u

const CASCADE_COUNT: u32 = LOD_COUNT + 1u

const WAVE_COUNT: u32 = 40u

const MAX_QUERIES: u32 = 256u

const LOD_TRANSITION_START: f32 = 1.0

const MORPH_BLACK_POINT: f32 = 0.05

const MORPH_FADE_SIDES: f32 = 2.0

const UV_CENTER: f32 = 0.5

const MIN_SAMPLE_WEIGHT: f32 = 0.001

const MIN_NORMAL_Y: f32 = 0.0001

var lod_data: texture_2d_array<f32>

var lod_sampler: sampler

var<uniform> params: AnimWavesUniform

var<storage, read> requests: array<QueryRequest>

var<storage, read_write> results: array<QueryResult>

fn lod_count () -> u32

fn lod_alpha ( ) -> f32

fn world_to_uv ( ) -> vec2<f32>

fn sample_displacement ( ) -> vec3<f32>

fn select_lod ( ) -> u32

fn river_surface ( ) -> vec3<f32>

fn sample ( )