visgl / luma.gl / 8242672744

// luma.gl

// SPDX-License-Identifier: MIT

// Copyright (c) vis.gl contributors

import type {UniformValue, Binding} from '@luma.gl/core';

import {isNumericArray} from '@math.gl/types';

export function isUniformValue(value: unknown): boolean {

  return isNumericArray(value) !== null || typeof value === 'number' || typeof value === 'boolean';

}

type UniformsAndBindings = {

  bindings: Record<string, Binding>;

  uniforms: Record<string, UniformValue>;

};

export function splitUniformsAndBindings(

  uniforms: Record<string, Binding | UniformValue>

): UniformsAndBindings {

  const result: UniformsAndBindings = {bindings: {}, uniforms: {}};

  Object.keys(uniforms).forEach(name => {

    const uniform = uniforms[name];

    if (isUniformValue(uniform)) {

      result.uniforms[name] = uniform as UniformValue;

    } else {

      result.bindings[name] = uniform as Binding;

    }

  });

  return result;

}