Forums | NoesisGUI

<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
      xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
      xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
      xmlns:local="clr-namespace:CPVRGUI.UI.Noesis"
      mc:Ignorable="d" 
      d:DesignHeight="450" d:DesignWidth="800"
      Title="ExamplePage">

    <Grid Background="White">
        <TextBlock HorizontalAlignment="Center" VerticalAlignment="Center" FontSize="36">
            This is a test!!!!
        </TextBlock>
    </Grid>
</Page>

• Nothing shows in the editor viewport before playing. I can't even see the Widget component version of the UI until I hit play. (I'm wondering if this is expected as you've used arrows to represent the orientation of the UI in the WorldSpaceUI level sample, is there a way to preconstruct the UI at all if so?)
• Editing the NoesisView asset and saving/compiling often crashes Unreal. The last two times it did this, it was after I had changed the XAML between mine and the Hello World sample and after I had enabled, then disabled, PPAA. I haven't tested this extensively but I feel it probably crashes regardless of what you change, seems random.
• I can't see the LogNoesis category in the output log settings. I might have been able to figure out what's wrong if that was at least working!

I have tried it in your sample project to see if it was a Unreal version issue, but I realise I haven't actually tried the sample in my project yet.

On another note, I did manage to get the logging working by moving the #include. It hasn't fixed the issue though sadly and I'm not seeing any errors or warnings from it.

I have tried it in your sample project to see if it was a Unreal version issue, but I realise I haven't actually tried the sample in my project yet.

Just to make sure I am following. Does our sample project work correctly?

On another note, I did manage to get the logging working by moving the #include. It hasn't fixed the issue though sadly and I'm not seeing any errors or warnings from it.

Could you ellaborate on this? What #include was moved.

Thank you!

• Created a new 5.1.1 VR template project
  1. Created project and opened it for the first time
  2. Closed the project and copied the NoesisGUI plugin to the Plugins folder in the project
  3. Attempted to open the project, was met with shader compilation errors. The workers were crashing.
  4. Removed the plugin and opened the project, it opened fine.
  5. Re-added the plugin and switched the project version to 5.2.1.
  6. UE prompted to rebuild the below modules that had been modified with a different version of UE, I confirmed.
     • NoesisRuntime
     • NoesisBlueprint
     • NoesisEditor
  7. Project rebuilds shaders and eventually loads. Confirmed the plugin was loaded.
  8. Added sample WorldUI (ObjectPanel.xaml) to a sphere, but it didn't show in play.
• Created a new 5.2.1 VR template project
  1. Created project and opened it for the first time
  2. Closed the project and copied the NoesisGUI plugin to the Plugins folder in the project
  3. UE prompted to rebuild the below modules that had been modified with a different version of UE, I confirmed.
     • NoesisRuntime
     • NoesisBlueprint
     • NoesisEditor
  4. Project builds shaders and loads. Confirmed the plugin was loaded.
  5. Added the same sample UI to the same sphere, but the same issue occurred.
  6. Closed project and switched version to 5.1.1, recompiled the same modules as prompted.
  7. Shader compilation crashes again.
• Added plugin to existing 5.1.1 project
  1. Added plugin to plugins folder
  2. Added #include to project (first BP_VR.h, then BP_VR.cpp later. Didn't make a difference so won't detail it).
  3. Added modules to the build.cs file.
  4. Opened project, UE prompted to rebuild the below modules that had been modified with a different version of UE, I confirmed.
     • NoesisRuntime
     • NoesisBlueprint
     • NoesisEditor
  5. Project opens, confirmed the plugin was enabled.
  6. Added my example XAML to content, created view, and added view to a widget component. Works fine.
  7. Added a NoesisWorldUI component to a test actor and set the XAML to my example. UI didn't render in the viewport or in play.
  8. Tested the same with the WorldUI in the plugin content and the sample ObjectPanel in the sample project, same problem.
  9. Disabled forward rendering, same problem
  10. Enabled separate translucency, same problem.
• Created a new 5.1.1 first-person template project
  1. Created project and opened it for the first time
  2. Closed the project and copied the NoesisGUI plugin to the Plugins folder in the project
  3. UE prompted to rebuild the below modules that had been modified with a different version of UE, I confirmed.
     • NoesisRuntime
     • NoesisBlueprint
     • NoesisEditor
  4. Project rebuilds shaders and eventually loads. Confirmed the plugin was loaded.
  5. Added sample WorldUI (ObjectPanel.xaml) to a cube and it showed up in play.

Hi,

I've been looking into this. Turns out the VR template turns off a rendering feature called Separate Translucency that we counted on to render in world space. I believe that simply choosing MSAA as the antialiasing method also disables it. I've figured out how to make it work, but I need to test it more thoroughly, as well as testing those shader compile errors with older versions of the engine.

If you want to test what I've got so far, please create a ticket in our bug tracking portal, and I'll attach a patch for you to test. That way you'll also be notified once the solution makes it to our codebase.

Thanks