optimisation: only render visible portals

2022-10-09 17:06:21 +02:00
parent 3477601c5f
commit 3a343f8811
1 changed files with 6 additions and 0 deletions
--- a/Engine/Portal/Portal.cs
+++ b/Engine/Portal/Portal.cs
@@ -60,6 +60,12 @@ namespace Escape_Room_Engine.Portal

        private void Render(ScriptableRenderContext scriptableRenderContext, Camera camera)
        {
+            // check whether the portal plane is visible from the player camera
+            var frustumPlanes = GeometryUtility.CalculateFrustumPlanes(_playerCamera.camera);
+            if (!GeometryUtility.TestPlanesAABB(frustumPlanes, other.portalQuad.bounds))
+                // don't render this portal if it is not visible
+                return;
+            
            var t = transform;

            foreach (var eye in Eyes)