I just installed a new SP4 version 9.7.15.12 of NevronChart for WinForms and found some problems with rendering of 3D charts (NCartesianChart). Previously I used version 8.6.26.12, which worked correctly.

1. Setting ChartControl.Settings.RenderDevice = RenderDevice.OpenGL shows just a grid. After some experimenting I found that with RenderDevice.Auto I can see the chart, though RenderDevice.OpenGL should work too (as it was in the old version).

2. In the old version I used ChartControl.Settings.RenderSurface = RenderSurface.Window, which worked correctly and fast. In the new version setting RenderSurface to Window shows an unupdated rectangular area (~670x380 pixels) in the top left corner of the chart area (screenshot attached), the chart updates are slow and eventually the application hangs. If I set RenderSurface to Bitmap, the rendering works, but much slower than it was before.

What can you recommend to fix the problem?

Thank you,

Yuri Gaidoukevitch
Media Cybernetics