Custom shadow map

here is the version 2 code for adding and updating output asset for the custom shadow map. is it possible in version 3 to add output assets through code?? and how can we do it in version 3??

let geometryAsset = {
      id: 'plane_mesh',
      group: 'geometry_group',
      content: [
          data: {
            threeObject: box
          format: "material",
          data: {
            version: '2.0',
            transparencytexture: 'shapediver_ground_3.jpg'

Hello @Muhammad_waleed_akht,

you can add threeJs objects directly now. Here is an example: three.js data - transparent groundplane - CodeSandbox

Cheers, Michael