// luma.gl
// SPDX-License-Identifier: MIT
// Copyright (c) vis.gl contributors
import { glsl } from "../../../lib/glsl-utils/highlight.js";
export const lightingShader = `\
#if (defined(SHADER_TYPE_FRAGMENT) && defined(LIGHTING_FRAGMENT)) || (defined(SHADER_TYPE_VERTEX) && defined(LIGHTING_VERTEX))
struct AmbientLight {
vec3 color;
};
struct PointLight {
vec3 color;
vec3 position;
vec3 attenuation;
};
struct DirectionalLight {
vec3 color;
vec3 direction;
};
uniform AmbientLight lighting_uAmbientLight;
uniform PointLight lighting_uPointLight[MAX_LIGHTS];
uniform DirectionalLight lighting_uDirectionalLight[MAX_LIGHTS];
uniform int lighting_uPointLightCount;
uniform int lighting_uDirectionalLightCount;
uniform bool lighting_uEnabled;
float getPointLightAttenuation(PointLight pointLight, float distance) {
return pointLight.attenuation.x
+ pointLight.attenuation.y * distance
+ pointLight.attenuation.z * distance * distance;
}
#endif
`;