Terrain refresh rate

[malisle]

I have a question regarding latest Orbiter 2015 beta with D3D9 beta.

After changing the camera view (rotation around the vessel for example) already loaded terrain loses it's detail and starts to load again. Also, when orbiting the terrain starts as low resolution and proceeds to build up quality. New terrain is entering the view as low quality. After changing the view it starts all over again. So basically, whatever I do, terrain is always changing.

Take a look at this video. I tried changing mostly all the settings and I didn't notice much of an improvement. I have latest drivers. HiRES textures are installed and problem is visible on Mars, Moon and Earth.

VIDEO

Hardware shouldn't be the culprit: GTX970, i4790k and 16GB DDR3 coupled with SSD (but in this case program was started from USB3.0 ext. disk, problem is same when started from SSD)

Solutions?

 

[jarmonik]

In D3D9 we need to make some modifications to terrain loading/unloading logic to get the cloud shadows and reflections to work. The issue you described will get fixed automatically in the process.