/**
 * Terrain splat-map shader: PBR lighting with 3-texture blending.
 *
 * Vertex format 40B: pos(3) + normal(3) + uv(2) + splatWeights(2) = 10 floats.
 * Fragment blends 3 albedo textures using per-vertex splat weights:
 *   w0 = grass, w1 = rock, w2 = 1 - w0 - w1 (snow/dirt).
 */
export declare const TERRAIN_VERTEX_SHADER = "\nstruct ObjectUniforms {\n  mvp: mat4x4<f32>,\n  model: mat4x4<f32>,\n  normalMatrix: mat4x4<f32>,\n};\n\n@group(0) @binding(0) var<uniform> object: ObjectUniforms;\n\nstruct VertexInput {\n  @location(0) position: vec3<f32>,\n  @location(1) normal: vec3<f32>,\n  @location(2) uv: vec2<f32>,\n  @location(3) splatWeights: vec2<f32>,\n};\n\nstruct VertexOutput {\n  @builtin(position) clipPosition: vec4<f32>,\n  @location(0) worldPosition: vec3<f32>,\n  @location(1) worldNormal: vec3<f32>,\n  @location(2) uv: vec2<f32>,\n  @location(3) splatWeights: vec2<f32>,\n};\n\n@vertex\nfn main(input: VertexInput) -> VertexOutput {\n  var output: VertexOutput;\n  let worldPos = object.model * vec4<f32>(input.position, 1.0);\n  output.clipPosition = object.mvp * vec4<f32>(input.position, 1.0);\n  output.worldPosition = worldPos.xyz;\n  output.worldNormal = (object.normalMatrix * vec4<f32>(input.normal, 0.0)).xyz;\n  output.uv = input.uv;\n  output.splatWeights = input.splatWeights;\n  return output;\n}\n";
export declare const TERRAIN_FRAGMENT_SHADER: string;
//# sourceMappingURL=terrain-shader.d.ts.map