Add planet lighting (#32522)

* Implements a Dynamic Lighting System on maps. * Edit: the night should be a little bit brighter and blue now. * Major edit: everything must be done on the client side now, with certain datafield replicated. Changes were outlined in the salvage to accommodate the new lighting system. * Edit: The offset is now serverside, this makes the time accurate in all situations. * Removing ununsed import * Minor tweaks * Tweak in time precision * Minor tweak + Unused import removed * Edit: apparently RealTime is better for what I'm looking for * Fix: Now the time is calculated correctly. * Minor tweaks * Adds condition for when the light should be updated * Add planet lighting * she * close-ish * c * bittersweat * Fixes * Revert "Merge branch '22719' into 2024-09-29-planet-lighting" This reverts commit 9f2785bb16aee47d794aa3eed8ae15004f97fc35, reversing changes made to 19649c07a5fb625423e08fc18d91c9cb101daa86. * Europa and day-night * weh * rooves working * Clean * Remove Europa * Fixes * fix * Update * Fix caves * Update for engine * Add sun shadows (planet lighting v2) For now mostly targeting walls and having the shadows change over time. Got the basic proof-of-concept working just needs a hell of a lot of polish. * Documentation * a * Fixes * Move blur to an overlay * Slughands * Fixes * Remove v2 work * Finalise --------- Co-authored-by: DoutorWhite <thedoctorwhite@gmail.com>
2025-02-16 19:35:32 +11:00
parent 19dee8a029
commit b6ee183dc6
26 changed files with 819 additions and 16 deletions
--- a/Content.Client/Light/AfterLightTargetOverlay.cs
+++ b/Content.Client/Light/AfterLightTargetOverlay.cs
@@ -0,0 +1,58 @@
+using System.Numerics;
+using Robust.Client.Graphics;
+using Robust.Shared.Enums;
+
+namespace Content.Client.Light;
+
+/// <summary>
+/// This exists just to copy <see cref="BeforeLightTargetOverlay"/> to the light render target
+/// </summary>
+public sealed class AfterLightTargetOverlay : Overlay
+{
+    public override OverlaySpace Space => OverlaySpace.BeforeLighting;
+
+    [Dependency] private readonly IOverlayManager _overlay = default!;
+
+    public const int ContentZIndex = LightBlurOverlay.ContentZIndex + 1;
+
+    public AfterLightTargetOverlay()
+    {
+        IoCManager.InjectDependencies(this);
+        ZIndex = ContentZIndex;
+    }
+
+    protected override void Draw(in OverlayDrawArgs args)
+    {
+        var viewport = args.Viewport;
+        var worldHandle = args.WorldHandle;
+
+        if (viewport.Eye == null)
+            return;
+
+        var lightOverlay = _overlay.GetOverlay<BeforeLightTargetOverlay>();
+        var bounds = args.WorldBounds;
+
+        // at 1-1 render scale it's mostly fine but at 4x4 it's way too fkn big
+        var newScale = viewport.RenderScale / 2f;
+
+        var localMatrix =
+            viewport.LightRenderTarget.GetWorldToLocalMatrix(viewport.Eye, newScale);
+        var diff = (lightOverlay.EnlargedLightTarget.Size - viewport.LightRenderTarget.Size);
+        var halfDiff = diff / 2;
+
+        // Pixels -> Metres -> Half distance.
+        // If we're zoomed in need to enlarge the bounds further.
+        args.WorldHandle.RenderInRenderTarget(viewport.LightRenderTarget,
+            () =>
+            {
+                // We essentially need to draw the cropped version onto the lightrendertarget.
+                var subRegion = new UIBox2i(halfDiff.X,
+                    halfDiff.Y,
+                    viewport.LightRenderTarget.Size.X + halfDiff.X,
+                    viewport.LightRenderTarget.Size.Y + halfDiff.Y);
+
+                worldHandle.SetTransform(localMatrix);
+                worldHandle.DrawTextureRectRegion(lightOverlay.EnlargedLightTarget.Texture, bounds, subRegion: subRegion);
+            }, null);
+    }
+}