feat: dynamic lights

[AlejandroAlvarezMelucciDCL]

Related PRs
Protocol PR: decentraland/protocol#234
SDK PR: decentraland/js-sdk-toolchain#1049

QA TEST STEPS

1. Download this test scene and decompress it somewhere
2. Enter the scene root folder with a terminal/command and run npm i and then npm run start
3. Close the Explorer that auto-opened. Leave the scene running in the console/terminal.
4. Download the build from this PR and connect it to the running scene using the console command according to your OS
5. The client should open and the scene should be shown
6. The test scene has several places to test different conditions and behaviors:

RedGreen cube

• Starting basic test, just 2 spot lights one red, one green, lighting a PBR cube

The cornell-boxes

• The one on the left is made with PBR materials and everything inside uses PBR as well. PBR is the only type of material that support shadows and lights in DCL.
• The one on the right is made with Basic (or Unlit) materials, almost everything inside uses Basic as well, except for the spheres, this is to prove that there is in fact a light inside the box and that unlit materials are not affected.
• Each Box has it's control panel at the entrance. Play around with the buttons and see the tooltips to understand what they do.

DarkRoom

• Outside there's a white point light where you can walk around and see how the shadow behaves
• This is the only SOFT shadow in the scene:

Hard shadow:

Soft shadow:

• The green wall is a walk-through door
• This room intends to be pitch black inside but due to current limitations this is not possible

• The control panel inside just toggles the point light inside

The Stage

• The control panel affects the 3 lights
• The 2 side lights work together
• The 3d light that points straight to the stage center is the only light in the scene set to use shadow texture mask. There's a button in the stage control panel that cycles through no mask => bat symbol => window frame

Disclaimer: Some tooltips might have typos or might not get properly updated, that's a scene code bug not related to Dynamic Lights 😅

[github-actions]

Windows and Mac build successfull in Unity Cloud! You can find a link to the downloadable artifact below.

Name	Link
Commit	a544ebc
Logs	https://github.com/decentraland/unity-explorer/actions/runs/13170346123
Download Windows	https://github.com/decentraland/unity-explorer/suites/34003932988/artifacts/2545016997
Download Windows S3	https://explorer-artifacts.decentraland.org/@dcl/unity-explorer/branch/feat/dynamic-lights/Decentraland_windows64.zip
Download Mac	https://github.com/decentraland/unity-explorer/suites/34003932988/artifacts/2545086297
Download Mac S3	https://explorer-artifacts.decentraland.org/@dcl/unity-explorer/branch/feat/dynamic-lights/Decentraland_macos.zip
Built on	2025-02-06T03:28:25Z

[DafGreco]

Lights checked on both platforms ! ✅

Windows check : ✅

• Redgreen cube
  

• The cornell-boxes

03.02.2025_08.07.24_REC.mp4

• DarkRoom
  

• The stage
  

Sanity check made on Windows :

• Chat interactions
• Skybox functionality
• Emotes
• Teleport ( Dollhouse , the inn and metadynelabs)
• Map
• Camera functionality
• Gallery

Macos check ✅

• Redgreen cube
  

• The cornell-boxes
  

• DarkRoom
  

• The stage
  

Sanity check made on macos :

• Backpack
• Emotes
• Teleport (Dollhouse, the inn , metadynelabs)
• Camera functionality
• Gallery
• Notifications
• Skybox functionality