diff --git a/Source/Editor/CustomEditors/Editors/IBrushEditor.cs b/Source/Editor/CustomEditors/Editors/IBrushEditor.cs
index b32f58923..ce5207414 100644
--- a/Source/Editor/CustomEditors/Editors/IBrushEditor.cs
+++ b/Source/Editor/CustomEditors/Editors/IBrushEditor.cs
@@ -26,6 +26,7 @@ namespace FlaxEditor.CustomEditors.Editors
             new OptionType("Texture 9-Slicing", typeof(Texture9SlicingBrush)),
             new OptionType("Sprite 9-Slicing", typeof(Sprite9SlicingBrush)),
             new OptionType("Video", typeof(VideoBrush)),
+            new OptionType("UI Brush", typeof(UIBrush)),
         };
     }
 }
diff --git a/Source/Editor/CustomEditors/LayoutElementsContainer.cs b/Source/Editor/CustomEditors/LayoutElementsContainer.cs
index 68ac9f47a..322a08d64 100644
--- a/Source/Editor/CustomEditors/LayoutElementsContainer.cs
+++ b/Source/Editor/CustomEditors/LayoutElementsContainer.cs
@@ -287,10 +287,7 @@ namespace FlaxEditor.CustomEditors
         /// <returns>The created element.</returns>
         public ImageElement Image(SpriteHandle sprite)
         {
-            var element = new ImageElement();
-            element.Image.Brush = new SpriteBrush(sprite);
-            OnAddElement(element);
-            return element;
+            return Image(new SpriteBrush(sprite));
         }
 
         /// <summary>
@@ -300,10 +297,7 @@ namespace FlaxEditor.CustomEditors
         /// <returns>The created element.</returns>
         public ImageElement Image(Texture texture)
         {
-            var element = new ImageElement();
-            element.Image.Brush = new TextureBrush(texture);
-            OnAddElement(element);
-            return element;
+            return Image(new TextureBrush(texture));
         }
 
         /// <summary>
@@ -312,9 +306,19 @@ namespace FlaxEditor.CustomEditors
         /// <param name="texture">The GPU texture.</param>
         /// <returns>The created element.</returns>
         public ImageElement Image(GPUTexture texture)
+        {
+            return Image(new GPUTextureBrush(texture));
+        }
+
+        /// <summary>
+        /// Adds brush image to the layout.
+        /// </summary>
+        /// <param name="brush">The brush.</param>
+        /// <returns>The created element.</returns>
+        public ImageElement Image(IBrush brush)
         {
             var element = new ImageElement();
-            element.Image.Brush = new GPUTextureBrush(texture);
+            element.Image.Brush = brush;
             OnAddElement(element);
             return element;
         }
diff --git a/Source/Editor/Surface/Archetypes/Textures.cs b/Source/Editor/Surface/Archetypes/Textures.cs
index 1e7dfb56f..56f8154d7 100644
--- a/Source/Editor/Surface/Archetypes/Textures.cs
+++ b/Source/Editor/Surface/Archetypes/Textures.cs
@@ -459,7 +459,7 @@ namespace FlaxEditor.Surface.Archetypes
                 AlternativeTitles = new string[] { "Lightmap TexCoord" }, 
                 Description = "Lightmap UVs",
                 Flags = NodeFlags.MaterialGraph,
-                Size = new Float2(110, 30),
+                Size = new Float2(110, 20),
                 Elements = new []
                 {
                     NodeElementArchetype.Factory.Output(0, "UVs", typeof(Float2), 0)
@@ -493,6 +493,19 @@ namespace FlaxEditor.Surface.Archetypes
                     NodeElementArchetype.Factory.Bool(190, Surface.Constants.LayoutOffsetY * 4, 4),
                 }
             },
+            new NodeArchetype
+            {
+                TypeID = 24,
+                Title = "Texture Size",
+                Description = "Gets the size of the texture (in pixels). If texture is during streaming, then returns size of the highest resident mip.",
+                Flags = NodeFlags.ParticleEmitterGraph,
+                Size = new Float2(160, 20),
+                Elements = new[]
+                {
+                    NodeElementArchetype.Factory.Input(0, "Texture", true, typeof(FlaxEngine.Object), 0),
+                    NodeElementArchetype.Factory.Output(0, "Size", typeof(Float3), 1),
+                }
+            },
         };
     }
 }
diff --git a/Source/Engine/Level/Actors/EnvironmentProbe.cpp b/Source/Engine/Level/Actors/EnvironmentProbe.cpp
index 3c49611d4..71b403eb9 100644
--- a/Source/Engine/Level/Actors/EnvironmentProbe.cpp
+++ b/Source/Engine/Level/Actors/EnvironmentProbe.cpp
@@ -197,6 +197,7 @@ void EnvironmentProbe::Draw(RenderContext& renderContext)
             data.Position = position;
             data.Radius = radius;
             data.Brightness = Brightness;
+            data.SortOrder = SortOrder;
             data.HashID = GetHash(_id);
             renderContext.List->EnvironmentProbes.Add(data);
         }
@@ -234,6 +235,7 @@ void EnvironmentProbe::Serialize(SerializeStream& stream, const void* otherObj)
     SERIALIZE_MEMBER(Radius, _radius);
     SERIALIZE(CubemapResolution);
     SERIALIZE(Brightness);
+    SERIALIZE(SortOrder);
     SERIALIZE(UpdateMode);
     SERIALIZE(CaptureNearPlane);
     SERIALIZE_MEMBER(IsCustomProbe, _isUsingCustomProbe);
@@ -248,6 +250,7 @@ void EnvironmentProbe::Deserialize(DeserializeStream& stream, ISerializeModifier
     DESERIALIZE_MEMBER(Radius, _radius);
     DESERIALIZE(CubemapResolution);
     DESERIALIZE(Brightness);
+    DESERIALIZE(SortOrder);
     DESERIALIZE(UpdateMode);
     DESERIALIZE(CaptureNearPlane);
     DESERIALIZE_MEMBER(IsCustomProbe, _isUsingCustomProbe);
diff --git a/Source/Engine/Level/Actors/EnvironmentProbe.h b/Source/Engine/Level/Actors/EnvironmentProbe.h
index 7131dc0ba..09f771437 100644
--- a/Source/Engine/Level/Actors/EnvironmentProbe.h
+++ b/Source/Engine/Level/Actors/EnvironmentProbe.h
@@ -51,6 +51,12 @@ public:
     API_FIELD(Attributes="EditorOrder(10), Limit(0, 1000, 0.01f), EditorDisplay(\"Probe\")")
     float Brightness = 1.0f;
 
+    /// <summary>
+    /// The probe rendering order. The higher values are render later (on top).
+    /// </summary>
+    API_FIELD(Attributes = "EditorOrder(25), EditorDisplay(\"Probe\")")
+    int32 SortOrder = 0;
+
     /// <summary>
     /// The probe update mode.
     /// </summary>
diff --git a/Source/Engine/Particles/Graph/CPU/ParticleEmitterGraph.CPU.Particles.cpp b/Source/Engine/Particles/Graph/CPU/ParticleEmitterGraph.CPU.Particles.cpp
index 58058afc1..a47e15275 100644
--- a/Source/Engine/Particles/Graph/CPU/ParticleEmitterGraph.CPU.Particles.cpp
+++ b/Source/Engine/Particles/Graph/CPU/ParticleEmitterGraph.CPU.Particles.cpp
@@ -162,6 +162,13 @@ void ParticleEmitterGraphCPUExecutor::ProcessGroupTextures(Box* box, Node* node,
         value = Value::Zero;
         break;
     }
+    // Texture Size
+    case 24:
+    {
+        // TODO: support sampling textures in CPU particles
+        value = Value::Zero;
+        break;
+    }
     default:
         break;
     }
diff --git a/Source/Engine/Particles/Graph/GPU/ParticleEmitterGraph.GPU.Textures.cpp b/Source/Engine/Particles/Graph/GPU/ParticleEmitterGraph.GPU.Textures.cpp
index 355548e37..820f8da3d 100644
--- a/Source/Engine/Particles/Graph/GPU/ParticleEmitterGraph.GPU.Textures.cpp
+++ b/Source/Engine/Particles/Graph/GPU/ParticleEmitterGraph.GPU.Textures.cpp
@@ -34,8 +34,8 @@ bool ParticleEmitterGPUGenerator::loadTexture(Node* caller, Box* box, const Seri
     Value location = tryGetValue(locationBox, Value::InitForZero(VariantType::Float2));
 
     // Convert into a proper type
-    if (isCubemap || isVolume || isArray)
-        location = Value::Cast(location, VariantType::Float3);
+    if (isVolume || isArray)
+        location = Value::Cast(location, VariantType::Float4);
     else
         location = Value::Cast(location, VariantType::Float3);
 
@@ -332,6 +332,21 @@ void ParticleEmitterGPUGenerator::ProcessGroupTextures(Box* box, Node* node, Val
         value = box == gradientBox ? gradient : distance;
         break;
     }
+    // Texture Size
+    case 24:
+    {
+        value = Value::Zero;
+        auto textureBox = node->GetBox(0);
+        if (!textureBox->HasConnection())
+            break;
+        const auto texture = eatBox(textureBox->GetParent<Node>(), textureBox->FirstConnection());
+        const auto textureParam = findParam(texture.Value);
+        if (!textureParam)
+            break;
+        value = writeLocal(VariantType::Float2, node);
+        _writer.Write(TEXT("\t{0}.GetDimensions({1}.x, {1}.y);\n"), textureParam->ShaderName, value.Value);
+        break;
+    }
     default:
         break;
     }
diff --git a/Source/Engine/Particles/ParticleEmitter.cpp b/Source/Engine/Particles/ParticleEmitter.cpp
index 0be85f136..3e1847b67 100644
--- a/Source/Engine/Particles/ParticleEmitter.cpp
+++ b/Source/Engine/Particles/ParticleEmitter.cpp
@@ -9,7 +9,9 @@
 #include "Engine/Core/Log.h"
 #include "Engine/Core/Types/DataContainer.h"
 #include "Engine/Graphics/Shaders/Cache/ShaderCacheManager.h"
+#include "Engine/Graphics/Textures/GPUTexture.h"
 #include "Engine/Level/Level.h"
+#include "Engine/Profiler/ProfilerCPU.h"
 #include "Engine/Serialization/MemoryReadStream.h"
 #include "Engine/Serialization/MemoryWriteStream.h"
 #include "Engine/Threading/Threading.h"
@@ -60,6 +62,35 @@ ParticleEffect* ParticleEmitter::Spawn(Actor* parent, const Transform& transform
     return effect;
 }
 
+void ParticleEmitter::WaitForAsset(Asset* asset)
+{
+    // TODO: make a tool for it?
+    if (auto* texture = Cast<TextureBase>(asset))
+    {
+        // Wait for asset to be loaded
+        if (!texture->WaitForLoaded() && !IsInMainThread() && texture->GetTexture())
+        {
+            PROFILE_CPU_NAMED("WaitForTexture");
+
+            // Mark as used by rendering and wait for streaming to load it in
+            double waitTimeSeconds = 10000;
+            double now = Platform::GetTimeSeconds();
+            double end = now + waitTimeSeconds;
+            const int32 mipLevels = texture->GetMipLevels();
+            constexpr float requestedResidency = 0.7f;
+            const int32 minMipLevels = Math::Max(Math::Min(mipLevels, 7), (int32)(requestedResidency * (float)mipLevels));
+            while (texture->GetResidentMipLevels() < minMipLevels &&
+                now < end &&
+                !texture->HasStreamingError())
+            {
+                texture->GetTexture()->LastRenderTime = now;
+                Platform::Sleep(1);
+                now = Platform::GetTimeSeconds();
+            }
+        }
+    }
+}
+
 #if COMPILE_WITH_PARTICLE_GPU_GRAPH && COMPILE_WITH_SHADER_COMPILER
 
 namespace
@@ -297,6 +328,40 @@ Asset::LoadResult ParticleEmitter::load()
 	SimulationMode = ParticlesSimulationMode::CPU;
 #endif
 
+    // Wait for resources used by the emitter to be loaded
+    // eg. texture used to place particles on spawn needs to be available
+    bool waitForAsset = false;
+    for (const auto& node : Graph.Nodes)
+    {
+        if ((node.Type == GRAPH_NODE_MAKE_TYPE(5, 1) || node.Type == GRAPH_NODE_MAKE_TYPE(5, 2)) && node.Assets.Count() > 0)
+        {
+            const auto texture = node.Assets[0].As<TextureBase>();
+            if (texture)
+            {
+                if (!waitForAsset)
+                {
+                    waitForAsset = true;
+                    Particles::SystemLocker.End(true);
+                }
+                WaitForAsset(texture);
+            }
+        }
+    }
+    for (const auto& parameter : Graph.Parameters)
+    {
+        if (parameter.Type.Type == VariantType::Asset)
+        {
+            if (!waitForAsset)
+            {
+                waitForAsset = true;
+                Particles::SystemLocker.End(true);
+            }
+            WaitForAsset((Asset*)parameter.Value);
+        }
+    }
+    if (waitForAsset)
+        Particles::SystemLocker.Begin(true);
+
     return LoadResult::Ok;
 }
 
diff --git a/Source/Engine/Particles/ParticleEmitter.h b/Source/Engine/Particles/ParticleEmitter.h
index 772f5569e..1398de5db 100644
--- a/Source/Engine/Particles/ParticleEmitter.h
+++ b/Source/Engine/Particles/ParticleEmitter.h
@@ -168,6 +168,9 @@ public:
     /// <returns>The spawned effect.</returns>
     API_FUNCTION() ParticleEffect* Spawn(Actor* parent, const Transform& transform, float duration = MAX_float, bool autoDestroy = false);
 
+private:
+    void WaitForAsset(Asset* asset);
+
 public:
     // [BinaryAsset]
 #if USE_EDITOR
diff --git a/Source/Engine/Renderer/ReflectionsPass.cpp b/Source/Engine/Renderer/ReflectionsPass.cpp
index 3aa0ed6ee..631543010 100644
--- a/Source/Engine/Renderer/ReflectionsPass.cpp
+++ b/Source/Engine/Renderer/ReflectionsPass.cpp
@@ -335,12 +335,17 @@ void ReflectionsPass::Dispose()
 
 bool SortProbes(RenderEnvironmentProbeData const& p1, RenderEnvironmentProbeData const& p2)
 {
-    // Compare by radius
-    int32 res = static_cast<int32>(p2.Radius - p1.Radius);
+    // Compare by Sort Order
+    int32 res = p1.SortOrder - p2.SortOrder;
     if (res == 0)
     {
-        // Compare by ID to prevent flickering
-        res = p2.HashID - p1.HashID;
+        // Compare by radius
+        res = static_cast<int32>(p2.Radius - p1.Radius);
+        if (res == 0)
+        {
+            // Compare by ID to prevent flickering
+            res = p2.HashID - p1.HashID;
+        }
     }
     return res < 0;
 }
diff --git a/Source/Engine/Renderer/RenderList.h b/Source/Engine/Renderer/RenderList.h
index 469bc2cdd..d5288e6ee 100644
--- a/Source/Engine/Renderer/RenderList.h
+++ b/Source/Engine/Renderer/RenderList.h
@@ -155,6 +155,7 @@ struct RenderEnvironmentProbeData
     Float3 Position;
     float Radius;
     float Brightness;
+    int32 SortOrder;
     uint32 HashID;
 
     void SetShaderData(ShaderEnvProbeData& data) const;
diff --git a/Source/Engine/UI/GUI/Brushes/UIBrush.cs b/Source/Engine/UI/GUI/Brushes/UIBrush.cs
new file mode 100644
index 000000000..4441899c0
--- /dev/null
+++ b/Source/Engine/UI/GUI/Brushes/UIBrush.cs
@@ -0,0 +1,75 @@
+// Copyright (c) Wojciech Figat. All rights reserved.
+
+namespace FlaxEngine.GUI
+{
+    /// <summary>
+    /// Asset with <see cref="IBrush"/> that can be reused in different UI controls.
+    /// </summary>
+    /// <seealso cref="IBrush" />
+    /// <seealso cref="UIBrush" />
+    public class UIBrushAsset
+    {
+        /// <summary>
+        /// Brush object.
+        /// </summary>
+        public IBrush Brush;
+    }
+
+    /// <summary>
+    /// Implementation of <see cref="IBrush"/> for <see cref="FlaxEngine.VideoPlayer"/> frame displaying.
+    /// </summary>
+    /// <seealso cref="IBrush" />
+    /// <seealso cref="UIBrushAsset" />
+    public sealed class UIBrush : IBrush
+    {
+        /// <summary>
+        /// The UI Brush asset to use.
+        /// </summary>
+        public JsonAssetReference<UIBrushAsset> Asset;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="UIBrush"/> class.
+        /// </summary>
+        public UIBrush()
+        {
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="UIBrush"/> struct.
+        /// </summary>
+        /// <param name="asset">The UI Brush asset to use.</param>
+        public UIBrush(JsonAssetReference<UIBrushAsset> asset)
+        {
+            Asset = asset;
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="UIBrush"/> struct.
+        /// </summary>
+        /// <param name="asset">The UI Brush asset to use.</param>
+        public UIBrush(JsonAsset asset)
+        {
+            Asset = asset;
+        }
+
+        /// <inheritdoc />
+        public Float2 Size
+        {
+            get
+            {
+                var asset = (UIBrushAsset)Asset.Asset?.Instance;
+                if (asset != null && asset.Brush != null)
+                    return asset.Brush.Size;
+                return Float2.Zero;
+            }
+        }
+
+        /// <inheritdoc />
+        public void Draw(Rectangle rect, Color color)
+        {
+            var asset = (UIBrushAsset)Asset.Asset?.Instance;
+            if (asset != null && asset.Brush != null)
+                asset.Brush.Draw(rect, color);
+        }
+    }
+}