Add "View Size" node for GUI materials

Source/Engine/Render2D/Render2D.cpp

@@ -114,6 +114,8 @@ struct Render2DDrawCall
         struct
         {
             MaterialBase* Mat;
+            float Width;
+            float Height;
         } AsMaterial;
 
         struct
@@ -984,7 +986,10 @@ void DrawBatch(int32 startIndex, int32 count)
         // Apply and bind material
         auto material = d.AsChar.Mat;
         MaterialBase::BindParameters bindParams(Context, *(RenderContext*)nullptr);
-        bindParams.CustomData = &ViewProjection;
+        Render2D::CustomData customData;
+        customData.ViewProjection = ViewProjection;
+        customData.ViewSize = Float2(d.AsMaterial.Width, d.AsMaterial.Height);
+        bindParams.CustomData = &customData;
         material->Bind(bindParams);
 
         // Bind font atlas as a material parameter
@@ -1017,7 +1022,10 @@ void DrawBatch(int32 startIndex, int32 count)
         // Bind material
         auto material = (MaterialBase*)d.AsMaterial.Mat;
         MaterialBase::BindParameters bindParams(Context, *(RenderContext*)nullptr);
-        bindParams.CustomData = &ViewProjection;
+        Render2D::CustomData customData;
+        customData.ViewProjection = ViewProjection;
+        customData.ViewSize = Float2(d.AsMaterial.Width, d.AsMaterial.Height);
+        bindParams.CustomData = &customData;
         material->Bind(bindParams);
 
         // Bind index and vertex buffers
@@ -1892,6 +1900,8 @@ void Render2D::DrawMaterial(MaterialBase* material, const Rectangle& rect, const
     drawCall.StartIB = IBIndex;
     drawCall.CountIB = 6;
     drawCall.AsMaterial.Mat = material;
+    drawCall.AsMaterial.Width = rect.GetWidth();
+    drawCall.AsMaterial.Height = rect.GetHeight();
     WriteRect(rect, color);
 }
 

Source/Engine/Render2D/Render2D.h

@@ -5,6 +5,8 @@
 #include "Engine/Core/Math/Color.h"
 #include "Engine/Scripting/ScriptingType.h"
 #include "Engine/Core/Types/Span.h"
+#include "Engine/Core/Math/Vector2.h"
+#include "Engine/Core/Math/Matrix.h"
 
 struct SpriteHandle;
 struct TextLayoutOptions;
@@ -44,6 +46,13 @@ DECLARE_SCRIPTING_TYPE_NO_SPAWN(Render2D);
         VertexSnapping = 1,
     };
 
+public:
+    struct CustomData
+    {
+        Matrix ViewProjection;
+        Float2 ViewSize;
+    };
+
 public:
 
     /// <summary>