// deck.gl
// SPDX-License-Identifier: MIT
// Copyright (c) vis.gl contributors

import type {ShaderModule} from '@luma.gl/shadertools';

const defines = '#define SMOOTH_EDGE_RADIUS 0.5';
const vs = `
${defines}

struct VertexGeometry {
  vec4 position;
  vec3 worldPosition;
  vec3 worldPositionAlt;
  vec3 normal;
  vec2 uv;
  vec3 pickingColor;
} geometry = VertexGeometry(
  vec4(0.0, 0.0, 1.0, 0.0),
  vec3(0.0),
  vec3(0.0),
  vec3(0.0),
  vec2(0.0),
  vec3(0.0)
);
`;

const fs = `
${defines}

struct FragmentGeometry {
  vec2 uv;
} geometry;

float smoothedge(float edge, float x) {
  return smoothstep(edge - SMOOTH_EDGE_RADIUS, edge + SMOOTH_EDGE_RADIUS, x);
}
`;

export default {name: 'geometry', vs, fs} as const satisfies ShaderModule;