portal travelling

Assets/Escape Room Engine/Portal/PlayerCamera.cs

@@ -4,10 +4,10 @@ namespace Escape_Room_Engine.Portal
 {
     public class PlayerCamera : MonoBehaviour
     {
-        public Camera camera;
+        public new Camera camera;
         [SerializeField] private Transform leftEye, rightEye;
 
-        public Transform getEyeTransform(Camera.StereoscopicEye eye) =>
+        public Transform GetEyeTransform(Camera.StereoscopicEye eye) =>
             eye == Camera.StereoscopicEye.Left ? leftEye : rightEye;
     }
 }

Assets/Escape Room Engine/Portal/Portal Frame.blend.meta

@@ -51,7 +51,7 @@ ModelImporter:
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Assets/Escape Room Engine/Portal/Portal Screen.blend.meta

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Assets/Escape Room Engine/Portal/Portal Screen.blend1.meta

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Assets/Escape Room Engine/Portal/Portal.cs

@@ -1,23 +1,74 @@
 using System;
+using System.Collections.Generic;
 using UnityEngine;
 
 namespace Escape_Room_Engine.Portal
 {
+    [RequireComponent(typeof(Collider))]
     public class Portal : MonoBehaviour
     {
+        public static readonly Matrix4x4 HalfRotation = Matrix4x4.Rotate(Quaternion.Euler(0, 180, 0));
+        
         /// <summary>
         /// The portal that is connected with this one.
         /// </summary>
-        public Portal other;
+        public Portal linkedPortal;
         /// <summary>
         /// The camera that will draw the view for this portal.
         /// </summary>
         public PortalCamera portalCamera;
 
+        private readonly List<PortalDriver> _closePortalDrivers = new();
+
         private void Awake()
         {
             // check whether the other portal is set up
-            if (!other || other.other != this) throw new Exception("Other portal not set up correctly.");
+            if (!linkedPortal || linkedPortal.linkedPortal != this) throw new Exception("Other portal not set up correctly.");
+            
+            // check whether the collider is set up correctly
+            if (!GetComponent<Collider>().isTrigger) throw new Exception("Collider must be a trigger.");
+        }
+
+        private void LateUpdate()
+        {
+            for (var i = 0; i < _closePortalDrivers.Count; i++)
+            {
+                var portalDriver = _closePortalDrivers[i];
+                var side = CalculateSide(portalDriver.transform);
+                if (portalDriver.entrySide < 0 && side >= 0) // must have entered from the front and exited the back
+                {
+                    _closePortalDrivers.Remove(portalDriver);
+                    linkedPortal._closePortalDrivers.Add(portalDriver);
+                    portalDriver.entrySide = -1;
+                    portalDriver.Teleport(this, linkedPortal);
+                    i--; // decrease the loop counter because the list is one element smaller now
+                }
+            }
+        }
+
+        private void OnTriggerEnter(Collider other)
+        {
+            var portalDriver = other.GetComponent<PortalDriver>();
+            if (portalDriver && !_closePortalDrivers.Contains(portalDriver))
+            {
+                _closePortalDrivers.Add(portalDriver);
+                portalDriver.entrySide = CalculateSide(portalDriver.transform);
+            }
+        }
+
+        private void OnTriggerExit(Collider other)
+        {
+            var portalDriver = other.GetComponent<PortalDriver>();
+            if (portalDriver)
+            {
+                _closePortalDrivers.Remove(portalDriver);
+            }
+        }
+
+        private int CalculateSide(Transform portalDriverTransform)
+        {
+            var t = transform;
+            return Math.Sign(Vector3.Dot(t.forward, portalDriverTransform.position - t.position));
         }
     }
 }

Assets/Escape Room Engine/Portal/Portal.mat

@@ -44,6 +44,10 @@ Material:
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@@ -60,6 +64,10 @@ Material:
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+    - _RightTex:
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@@ -109,6 +117,7 @@ Material:
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+    - _ZTest: 4
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Assets/Escape Room Engine/Portal/Portal.prefab

@@ -10,6 +10,7 @@ GameObject:
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+  - component: {fileID: 7604291350124895408}
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@@ -29,9 +30,9 @@ Transform:
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-  portalQuad: {fileID: 6216133567950691622}
+  screen: {fileID: 5871497001431693362}
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Assets/Escape Room Engine/Portal/PortalCamera.cs

@@ -10,7 +10,6 @@ namespace Escape_Room_Engine.Portal
     [RequireComponent(typeof(Camera))]
     public class PortalCamera : MonoBehaviour
     {
-        private static readonly Matrix4x4 HalfRotation = Matrix4x4.Rotate(Quaternion.Euler(0, 180, 0));
         private static readonly Camera.StereoscopicEye[] Eyes =
             { Camera.StereoscopicEye.Left, Camera.StereoscopicEye.Right };
         private static readonly Dictionary<Camera.StereoscopicEye, int> EyeTextureNames = new()
@@ -22,15 +21,15 @@ namespace Escape_Room_Engine.Portal
         /// <summary>
         /// The minimum near clip plane distance to be used when calculating the oblique clip plane.
         /// </summary>
-        public float minNearClipPlane = 0.02f;
+        public float minNearClipPlane = 0.0001f;
         /// <summary>
         /// The portal this camera renders through.
         /// </summary>
         [SerializeField] private Portal portal;
         /// <summary>
-        /// The quad where the rendered texture will be drawn on.
+        /// The mesh where the rendered texture will be drawn on.
         /// </summary>
-        [SerializeField] private MeshRenderer portalQuad;
+        [SerializeField] private MeshRenderer screen;
 
         private PlayerCamera _playerCamera;
         private Camera _camera;
@@ -56,16 +55,18 @@ namespace Escape_Room_Engine.Portal
             RenderPipelineManager.beginCameraRendering -= Render;
         }
         
-        private void Render(ScriptableRenderContext scriptableRenderContext, Camera camera)
+        private void Render(ScriptableRenderContext scriptableRenderContext, Camera _)
         {
             // check whether the portal plane is visible from the player camera
             var frustumPlanes = GeometryUtility.CalculateFrustumPlanes(_playerCamera.camera);
-            if (!GeometryUtility.TestPlanesAABB(frustumPlanes, portal.other.portalCamera.portalQuad.bounds))
+            if (!GeometryUtility.TestPlanesAABB(frustumPlanes, portal.linkedPortal.portalCamera.screen.bounds))
                 // don't render this portal if it is not visible
                 return;
             
             var t = portal.transform;
 
+            screen.enabled = false;
+
             foreach (var eye in Eyes)
             {
                 // create portal texture if it doesn't exist yet
@@ -75,15 +76,15 @@ namespace Escape_Room_Engine.Portal
                     {
                         _textures.Add(eye,
                             new RenderTexture(XRSettings.eyeTextureWidth, XRSettings.eyeTextureHeight, 24));
-                        portal.other.portalCamera.portalQuad.material.SetTexture(EyeTextureNames[eye], _textures[eye]);
+                        portal.linkedPortal.portalCamera.screen.material.SetTexture(EyeTextureNames[eye], _textures[eye]);
                     }
                     else // no texture was created so nothing should be rendered
                         continue;
                 }
                 
                 // position portal camera
-                var m = t.localToWorldMatrix * HalfRotation * portal.other.transform.worldToLocalMatrix *
+                var m = t.localToWorldMatrix * Portal.HalfRotation * portal.linkedPortal.transform.worldToLocalMatrix *
-                        _playerCamera.getEyeTransform(eye).localToWorldMatrix;
+                        _playerCamera.GetEyeTransform(eye).localToWorldMatrix;
                 transform.SetPositionAndRotation(m.GetPosition(), m.rotation);
                 _camera.projectionMatrix = _playerCamera.camera.GetStereoProjectionMatrix(eye);
         
@@ -93,7 +94,7 @@ namespace Escape_Room_Engine.Portal
                 var portalPlane = new Plane(n, t.position); // clip plane in world space
                 var clipPlane = _camera.worldToCameraMatrix.inverse.transpose *
                                 new Vector4(n.x, n.y, n.z, portalPlane.distance); // vector format clip plane in camera space
-                if (Math.Abs(portalPlane.GetDistanceToPoint(transform.position)) >= minNearClipPlane)
+                if (-portalPlane.GetDistanceToPoint(transform.position) >= minNearClipPlane)
                     // only adjust the near clip plane if it doesn't intersect with the camera
                     _camera.projectionMatrix = _camera.CalculateObliqueMatrix(clipPlane);
         
@@ -101,6 +102,8 @@ namespace Escape_Room_Engine.Portal
                 _camera.targetTexture = _textures[eye];
                 UniversalRenderPipeline.RenderSingleCamera(scriptableRenderContext, _camera);
             }
+
+            screen.enabled = true;
         }
     }
 }

Assets/Escape Room Engine/Portal/PortalDriver.cs

@@ -0,0 +1,38 @@
+using System;
+using UnityEngine;
+
+namespace Escape_Room_Engine.Portal
+{
+    [RequireComponent(typeof(Collider), typeof(Rigidbody))]
+    public class PortalDriver : MonoBehaviour
+    {
+        /// <summary>
+        /// The object that will be transported through the portal. Usually either this object or a parent offset object.
+        /// </summary>
+        [SerializeField] private Transform traveller;
+
+        /// <summary>
+        /// The side of the portal this became tracked on.
+        /// </summary>
+        [HideInInspector] public int entrySide;
+        
+        /// <summary>
+        /// A reference to the collider of this portal driver.
+        /// </summary>
+        public Collider Collider { get; private set; }
+
+        private void Awake()
+        {
+            // check whether the collider is set up correctly
+            Collider = GetComponent<Collider>();
+            if (Collider.isTrigger) throw new Exception("Collider must not be a trigger.");
+        }
+
+        public void Teleport(Portal from, Portal to)
+        {
+            var m = to.transform.localToWorldMatrix * Portal.HalfRotation * from.transform.worldToLocalMatrix *
+                    traveller.localToWorldMatrix;
+            traveller.transform.SetPositionAndRotation(m.GetPosition(), m.rotation);
+        }
+    }
+}

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   m_SourcePrefab: {fileID: 100100000, guid: c50e7df1078c96f46bc6825f7e422fb7, type: 3}
 --- !u!4 &1281318075 stripped
@@ -3394,7 +3547,7 @@ MeshRenderer:
   m_RenderingLayerMask: 1
   m_RendererPriority: 0
   m_Materials:
-  - {fileID: 2100000, guid: 31321ba15b8f8eb4c954353edc038b1d, type: 2}
+  - {fileID: 2100000, guid: aee171c2a9e1c9d43b3f93b3cfc61500, type: 2}
   m_StaticBatchInfo:
     firstSubMesh: 0
     subMeshCount: 0
@@ -3755,7 +3908,7 @@ MeshRenderer:
   m_RenderingLayerMask: 1
   m_RendererPriority: 0
   m_Materials:
-  - {fileID: 2100000, guid: 31321ba15b8f8eb4c954353edc038b1d, type: 2}
+  - {fileID: 2100000, guid: 041825dc2cc50844f9aa0075a3004bb1, type: 2}
   m_StaticBatchInfo:
     firstSubMesh: 0
     subMeshCount: 0
@@ -3896,7 +4049,7 @@ MeshRenderer:
   m_RenderingLayerMask: 1
   m_RendererPriority: 0
   m_Materials:
-  - {fileID: 2100000, guid: 31321ba15b8f8eb4c954353edc038b1d, type: 2}
+  - {fileID: 2100000, guid: 041825dc2cc50844f9aa0075a3004bb1, type: 2}
   m_StaticBatchInfo:
     firstSubMesh: 0
     subMeshCount: 0
@@ -4329,7 +4482,7 @@ MeshRenderer:
   m_RenderingLayerMask: 1
   m_RendererPriority: 0
   m_Materials:
-  - {fileID: 2100000, guid: 31321ba15b8f8eb4c954353edc038b1d, type: 2}
+  - {fileID: 2100000, guid: aee171c2a9e1c9d43b3f93b3cfc61500, type: 2}
   m_StaticBatchInfo:
     firstSubMesh: 0
     subMeshCount: 0
@@ -4604,15 +4757,29 @@ PrefabInstance:
       propertyPath: camera
       value: 
       objectReference: {fileID: 1199088357}
+    - target: {fileID: 1249363658, guid: c50e7df1078c96f46bc6825f7e422fb7, type: 3}
+      propertyPath: linkedPortal
+      value: 
+      objectReference: {fileID: 1281318076}
     - target: {fileID: 1249363658, guid: c50e7df1078c96f46bc6825f7e422fb7, type: 3}
       propertyPath: playerCamera
       value: 
       objectReference: {fileID: 1199088357}
+    - target: {fileID: 1889810494552553078, guid: c50e7df1078c96f46bc6825f7e422fb7,
+        type: 3}
+      propertyPath: m_Materials.Array.data[0]
+      value: 
+      objectReference: {fileID: 2100000, guid: aee171c2a9e1c9d43b3f93b3cfc61500, type: 2}
     - target: {fileID: 2246995198243242195, guid: c50e7df1078c96f46bc6825f7e422fb7,
         type: 3}
       propertyPath: m_RootOrder
       value: 1
       objectReference: {fileID: 0}
+    - target: {fileID: 2246995198243242195, guid: c50e7df1078c96f46bc6825f7e422fb7,
+        type: 3}
+      propertyPath: m_LocalPosition.y
+      value: 0.001
+      objectReference: {fileID: 0}
     - target: {fileID: 2246995198243242195, guid: c50e7df1078c96f46bc6825f7e422fb7,
         type: 3}
       propertyPath: m_LocalEulerAnglesHint.x
@@ -4628,11 +4795,26 @@ PrefabInstance:
       propertyPath: m_LocalEulerAnglesHint.z
       value: 0
       objectReference: {fileID: 0}
+    - target: {fileID: 2708038842397463387, guid: c50e7df1078c96f46bc6825f7e422fb7,
+        type: 3}
+      propertyPath: m_Materials.Array.data[0]
+      value: 
+      objectReference: {fileID: 2100000, guid: aee171c2a9e1c9d43b3f93b3cfc61500, type: 2}
     - target: {fileID: 5635962022185625128, guid: c50e7df1078c96f46bc6825f7e422fb7,
         type: 3}
       propertyPath: m_Name
       value: Portal 1
       objectReference: {fileID: 0}
+    - target: {fileID: 7579483879678998835, guid: c50e7df1078c96f46bc6825f7e422fb7,
+        type: 3}
+      propertyPath: m_Materials.Array.data[0]
+      value: 
+      objectReference: {fileID: 2100000, guid: aee171c2a9e1c9d43b3f93b3cfc61500, type: 2}
+    - target: {fileID: 7965773041589933745, guid: c50e7df1078c96f46bc6825f7e422fb7,
+        type: 3}
+      propertyPath: m_Materials.Array.data[0]
+      value: 
+      objectReference: {fileID: 2100000, guid: aee171c2a9e1c9d43b3f93b3cfc61500, type: 2}
     m_RemovedComponents: []
   m_SourcePrefab: {fileID: 100100000, guid: c50e7df1078c96f46bc6825f7e422fb7, type: 3}
 --- !u!4 &7295752538729181700 stripped

Assets/URP/URP-HighFidelity-Renderer.asset

@@ -12,7 +12,7 @@ MonoBehaviour:
   m_Script: {fileID: 11500000, guid: f62c9c65cf3354c93be831c8bc075510, type: 3}
   m_Name: SSAO
   m_EditorClassIdentifier: 
-  m_Active: 1
+  m_Active: 0
   m_Shader: {fileID: 4800000, guid: 0849e84e3d62649e8882e9d6f056a017, type: 3}
   m_Settings:
     Downsample: 0
@@ -59,7 +59,7 @@ MonoBehaviour:
       type: 3}
     objectMotionVector: {fileID: 4800000, guid: 7b3ede40266cd49a395def176e1bc486,
       type: 3}
-  m_AssetVersion: 1
+  m_AssetVersion: 2
   m_OpaqueLayerMask:
     serializedVersion: 2
     m_Bits: 4294967295
@@ -76,6 +76,7 @@ MonoBehaviour:
   m_ShadowTransparentReceive: 1
   m_RenderingMode: 0
   m_DepthPrimingMode: 0
+  m_CopyDepthMode: 0
   m_AccurateGbufferNormals: 0
   m_ClusteredRendering: 0
   m_TileSize: 32

Assets/URP/URP-HighFidelity.asset

@@ -39,7 +39,7 @@ MonoBehaviour:
   m_AdditionalLightsShadowResolutionTierHigh: 512
   m_ReflectionProbeBlending: 1
   m_ReflectionProbeBoxProjection: 1
-  m_ShadowDistance: 150
+  m_ShadowDistance: 10
   m_ShadowCascadeCount: 4
   m_Cascade2Split: 0.25
   m_Cascade3Split: {x: 0.1, y: 0.3}