✨ Add water shader by Atlas and, flip some faces and experiment with animations

Assets/Bakery/examples/scripts/BakeryVolumeReceiver.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+// Example script, a counterpart to BakeryVolumeTrigger.cs (see that script for more info)
+//
+public class BakeryVolumeReceiver : MonoBehaviour
+{
+    public bool forceUsage = false;
+
+    // used by triggers
+    internal int enterCounter = 0;
+    internal BakeryVolumeTrigger movableTrigger = null;
+
+    Renderer[] renderers;
+    MaterialPropertyBlock current;
+
+    // Cache renderers affected by volumes
+    void Awake()
+    {
+        if (renderers == null) renderers = GetComponentsInChildren<Renderer>() as Renderer[];
+        if (forceUsage)
+        {
+            //  HDRP can sometimes (?) fail to use globally set volumes when SRP batching is enabled, so disable it for this object.
+            SetPropertyBlock(new MaterialPropertyBlock());
+        }
+    }
+
+    // Called by triggers
+    public void SetPropertyBlock(MaterialPropertyBlock mb)
+    {
+        if (renderers == null) renderers = GetComponentsInChildren<Renderer>() as Renderer[];
+        for(int i=0; i<renderers.Length; i++)
+        {
+            renderers[i].SetPropertyBlock(mb);
+        }
+        current = mb;
+    }
+
+    // Update shader properties here if the volume is moving
+    void LateUpdate()
+    {
+        if (movableTrigger == null) return;
+
+        movableTrigger.UpdateBounds();
+        SetPropertyBlock(current);
+    }
+}

Assets/Bakery/examples/scripts/BakeryVolumeReceiver.cs.meta

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Assets/Bakery/examples/scripts/BakeryVolumeTrigger.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+// Example volume switching script
+//
+// The high-level logic is following:
+//
+// - Volumes overlap each other a bit, so we don't need blending! The size of the overlap is the size of your largest dynamic object.
+// - As object enters the volume, set volume data to it. Increment the counter.
+// - As object leaves the volume, decrement the counter. If it equals 0, use global volume (set empty property block).
+// - If the volume is moving, set volume data every frame, in LateUpdate.
+//
+public class BakeryVolumeTrigger : MonoBehaviour
+{
+    public bool movable;
+
+    BakeryVolume vol;
+    MaterialPropertyBlock mb; // current volume shader properties
+
+    static MaterialPropertyBlock mbEmpty; // default empty block, no values (will revert to global volume)
+    static int mVolumeMin, mVolumeInvSize; // shader property IDs
+
+    void Awake()
+    {
+        if (mbEmpty == null) mbEmpty = new MaterialPropertyBlock();
+
+        // Create a MaterialPropertyBlock with Volume parameters for future use
+        vol = GetComponent<BakeryVolume>();
+        mb = new MaterialPropertyBlock();
+        if (vol.bakedTexture0 != null)
+        {
+            mb.SetTexture("_Volume0", vol.bakedTexture0);
+            mb.SetTexture("_Volume1", vol.bakedTexture1);
+            mb.SetTexture("_Volume2", vol.bakedTexture2);
+            if (vol.bakedTexture3 != null) mb.SetTexture("_Volume3", vol.bakedTexture3);
+        }
+        if (vol.bakedMask != null) mb.SetTexture("_VolumeMask", vol.bakedMask);
+        if (mVolumeMin == 0) mVolumeMin = Shader.PropertyToID("_VolumeMin");
+        if (mVolumeInvSize == 0) mVolumeInvSize = Shader.PropertyToID("_VolumeInvSize");
+        mb.SetVector(mVolumeMin, vol.GetMin());
+        mb.SetVector(mVolumeInvSize, vol.GetInvSize());
+        if (vol.supportRotationAfterBake) mb.SetMatrix("_VolumeMatrix", vol.GetMatrix());
+    }
+
+    // Apply MaterialPropertyBlock to renderers entering the trigger
+    void OnTriggerEnter(Collider c)
+    {
+        var rcv = c.GetComponent<BakeryVolumeReceiver>();
+        if (rcv == null) return;
+
+        Debug.Log(c.name + " entered " + this.name);
+
+        rcv.enterCounter++;
+        rcv.movableTrigger = movable ? this : null;
+        rcv.SetPropertyBlock(mb);
+    }
+
+    // Handle exiting the trigger
+    void OnTriggerExit(Collider c)
+    {
+        var rcv = c.GetComponent<BakeryVolumeReceiver>();
+        if (rcv == null) return;
+
+        Debug.Log(c.name + " exited " + this.name);
+
+        // Only set empty property block, if the counter is 0 (= exited ALL volumes)
+        rcv.enterCounter--;
+        if (rcv.enterCounter == 0) rcv.SetPropertyBlock(mbEmpty);
+    }
+
+    public void UpdateBounds()
+    {
+        vol.UpdateBounds();
+        mb.SetVector(mVolumeMin, vol.GetMin());
+        mb.SetVector(mVolumeInvSize, vol.GetInvSize());
+    }
+}

Assets/Bakery/examples/scripts/BakeryVolumeTrigger.cs.meta

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Assets/Bakery/examples/scripts/VolumeTestScene2.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class VolumeTestScene2 : MonoBehaviour
+{
+    public Transform secondFloor;
+    public BakeryVolumeTrigger[] secondFloorVolumes;
+    public float secondFloorHeight;
+    public bool randomizeLastRoom;
+    public Transform baseRoom;
+    public Transform alternativeRoom;
+
+    void SwapRooms()
+    {
+        var tmp = alternativeRoom.position;
+        alternativeRoom.position = baseRoom.position;
+        baseRoom.position = tmp;
+    }
+
+    void UpdateRooms()
+    {
+        for(int i=0; i<secondFloorVolumes.Length; i++)
+        {
+            secondFloorVolumes[i].UpdateBounds();
+        }
+    }
+
+    void Start()
+    {
+        if (randomizeLastRoom)
+        {
+            if (Random.Range(0,2) == 1)
+            {
+                SwapRooms();
+            }
+        }
+
+        secondFloor.position += Vector3.up * secondFloorHeight;
+
+        UpdateRooms();
+    }
+
+    void Update()
+    {
+        if (Input.GetKeyDown(KeyCode.Space))
+        {
+            SwapRooms();
+            UpdateRooms();
+        }
+    }
+}

Assets/Bakery/examples/scripts/VolumeTestScene2.cs.meta

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