04-06-2020, 04:21 PM
Your question is way to generic to be able to answer it. There is no number that represents the amount of items that can be rendered.
You should investigate the memory usage to see why you got the Out of memory exception. Maybe you were using x86 process and are limited to 2 GB per app. Or you tried to render to many TextBlockVisual3D objects where each TextBlockVisual3D would create its own RenderTargetBitmap and this would eat up all the memory. From your screenshot, it is hard to say what happened. Please provide more information about what you were trying to render.
Anyway, performance-wise, if you want to render a much more complicated 3D scene with many 3D objects, then you should add Ab3d.DXEngine to your application. When you are using only Ab3d.PowerToys, then you are using WPF 3D rendering this is fine for simpler 3D scenes, but cannot render a complex 3D scene. With adding the Ab3d.DXEngine your scene will be rendered with a much faster DirectX 11 rendering engine.
You should investigate the memory usage to see why you got the Out of memory exception. Maybe you were using x86 process and are limited to 2 GB per app. Or you tried to render to many TextBlockVisual3D objects where each TextBlockVisual3D would create its own RenderTargetBitmap and this would eat up all the memory. From your screenshot, it is hard to say what happened. Please provide more information about what you were trying to render.
Anyway, performance-wise, if you want to render a much more complicated 3D scene with many 3D objects, then you should add Ab3d.DXEngine to your application. When you are using only Ab3d.PowerToys, then you are using WPF 3D rendering this is fine for simpler 3D scenes, but cannot render a complex 3D scene. With adding the Ab3d.DXEngine your scene will be rendered with a much faster DirectX 11 rendering engine.
Andrej Benedik