Resolution of 3D view

danielek

Hi,

I have always have the following problem to some point, without finding why GM reacts this way.

I have a DTM loaded, as well as the orthorectified image. In the example below, image resolution is 25 cm/pixel (on the left), and the resolution3D view is not only degraded, the pixels are seriously deformed (even though the scale is 1x1). Vector files are not properly scaled either; the big orange dot on the right is a tiny orange dot symbol of size 2 which you can see in the middle of the orthorectified image.

I have tried many options in the 3D configuration menu, changing window size etc. and this does not change anything, the 3D view is just hopeless. There is no other raster layer loaded. I have far enough RAM (64 Gb). GM version is 26.0 but this has been a problem to me since the beginning of times. What could the reason be?

I thought that it might be related to file size. The DTM and the orthorectified image are 1.2 Gb each, and 10,000x30,000 pixels. However, if file size is the limitation, would it explain that the resolution of the 3D view is that bad?

Thanks for your help!

daniel

NickV

Hi Daniel,

This has been a common issue for a long time, and it really doesn't matter how beefy your rig is. I assume that part of the problem is trying to provide a common rendering capability which a lot of users can access, and as GM is ultimately a 2D program that the 3D preview window is really intended as a visualisation tool and not really designed as something to output high quality images from. As such, it deliberately downgrades everything, especially textures over a surface.

It is definitely something that I would like to see significant improvements in, but I'm not holding my breath.