Fix drawing editor thumbnails when texture used by asset is using dynamic streaming

Source/Engine/Graphics/Textures/TextureBase.cpp

@@ -302,6 +302,12 @@ bool TextureBase::HasStreamingError() const
     return _texture.Streaming.Error;
 }
 
+void TextureBase::SetStreamingVisible() const
+{
+    if (_texture.GetTexture())
+        _texture.GetTexture()->LastRenderTime = Platform::GetTimeSeconds();
+}
+
 BytesContainer TextureBase::GetMipData(int32 mipIndex, int32& rowPitch, int32& slicePitch)
 {
     BytesContainer result;

Source/Engine/Graphics/Textures/TextureBase.h

@@ -153,6 +153,11 @@ public:
     /// </summary>
     API_PROPERTY() bool HasStreamingError() const;
 
+    /// <summary>
+    /// Sets the texture as visible this frame to inform streaming about usage which will stream boost its priority for the streaming.
+    /// </summary>
+    API_FUNCTION() void SetStreamingVisible() const;
+
 public:
     /// <summary>
     /// Gets the mip data.