Delay when switching active view from ViewXY to View3D

[ShawnCG]

Dear Arction Support,

I'm running into an issue where there is a 1-2 second delay when switching between ViewXY and View3D for the active view (or vice versa) in a single LightningChartUltimate object. The delay only happens the first time I switch from one to the other -- after that, switching back and forth happens much faster, like less than 100 milliseconds. When I put timers around various parts of the code, I can see that the time lag occurs inside the call to EndUpdate(). Is there any way to minimize the time delay when switching the active view that first time?

Thanks for any help you can offer!

[ArctionPasi]

Hi ShawnBG,

I just tested this with LC Demo App's examples. In a 2D example, I just set ActiveView= View3D in property grid. The delay is something like 10 ms. The View3D has of course only the walls and axes, with no series at all.

What kind of stuff do you have in View3D? Many series in ViewXY and View3D? Ensure you are running your app without debugger to measure real delay.

[ShawnCG]

I've uploaded an example project. After building the example, click on the button "Toggle XY/3D" and take a look at the timing reported in the text box on the left. You can edit the constructor MainWindow() in MainWindow.xaml.cs to change _isView3D from false to true initially to see the effect of initially starting with a 3D view.

Can you see the timing issue I am wondering about?

[ShawnCG]

Here is a screenshot of the results I get after clicking Toggle XY/3D several times.

[ArctionPasi]

I'm assuming the coloring/contour HLSL effect compiling in GPU takes majority of this time. I'll profile the application tomorrow and get back to you. The compiling is made when a coloring is used first time. Both IntensityGrid in ViewXY and SurfaceGrid in View3D use their own coloring effects.

[ArctionPasi]

Yes, it's the HLSL effect compiling that takes the time when the series is rendered the first time.

Profiler dump

profiler_pic.png (57.02 KiB) Viewed 15549 times

By using a coloring with fewer steps and no contour zones will give faster compiling.

[ShawnCG]

Thanks for looking into it!