@openhps/core/dist/esm/three/renderers/webgl/WebGLRenderStates.js

Open Hybrid Positioning System - Core component

import { WebGLLights } from './WebGLLights.js';
function WebGLRenderState(extensions) {
  const lights = new WebGLLights(extensions);
  const lightsArray = [];
  const shadowsArray = [];
  function init(camera) {
    state.camera = camera;
    lightsArray.length = 0;
    shadowsArray.length = 0;
  }
  function pushLight(light) {
    lightsArray.push(light);
  }
  function pushShadow(shadowLight) {
    shadowsArray.push(shadowLight);
  }
  function setupLights() {
    lights.setup(lightsArray);
  }
  function setupLightsView(camera) {
    lights.setupView(lightsArray, camera);
  }
  const state = {
    lightsArray: lightsArray,
    shadowsArray: shadowsArray,
    camera: null,
    lights: lights,
    transmissionRenderTarget: {}
  };
  return {
    init: init,
    state: state,
    setupLights: setupLights,
    setupLightsView: setupLightsView,
    pushLight: pushLight,
    pushShadow: pushShadow
  };
}
function WebGLRenderStates(extensions) {
  let renderStates = new WeakMap();
  function get(scene, renderCallDepth = 0) {
    const renderStateArray = renderStates.get(scene);
    let renderState;
    if (renderStateArray === undefined) {
      renderState = new WebGLRenderState(extensions);
      renderStates.set(scene, [renderState]);
    } else {
      if (renderCallDepth >= renderStateArray.length) {
        renderState = new WebGLRenderState(extensions);
        renderStateArray.push(renderState);
      } else {
        renderState = renderStateArray[renderCallDepth];
      }
    }
    return renderState;
  }
  function dispose() {
    renderStates = new WeakMap();
  }
  return {
    get: get,
    dispose: dispose
  };
}
export { WebGLRenderStates };