• Which the release of FS2020 we see an explosition of activity on the forun and of course we are very happy to see this. But having all questions about FS2020 in one forum becomes a bit messy. So therefore we would like to ask you all to use the following guidelines when posting your questions:

    • Tag FS2020 specific questions with the MSFS2020 tag.
    • Questions about making 3D assets can be posted in the 3D asset design forum. Either post them in the subforum of the modelling tool you use or in the general forum if they are general.
    • Questions about aircraft design can be posted in the Aircraft design forum
    • Questions about airport design can be posted in the FS2020 airport design forum. Once airport development tools have been updated for FS2020 you can post tool speciifc questions in the subforums of those tools as well of course.
    • Questions about terrain design can be posted in the FS2020 terrain design forum.
    • Questions about SimConnect can be posted in the SimConnect forum.

    Any other question that is not specific to an aspect of development or tool can be posted in the General chat forum.

    By following these guidelines we make sure that the forums remain easy to read for everybody and also that the right people can find your post to answer it.

Distance to Reference Point Question

gaputz

gaputz

Messages
274
Country
ca-saskatchewan
Should an object with a distance condition affect frame rates even when it is not rendered?

Here is the reason I ask. For my airport project I created a library of a couple objects made up of simple textured planes to create the illusion of grass. The intent is to place these models along the taxiways. See http://www.fsdeveloper.com/forum/threads/cyqr-regina.430084/page-2#post-686949. I did this on the theory that only a very limited number of the objects would be rendered at one time, limited by the distance to reference point condition put on the models. The goal was to keep the frame rate hit at a minimum. With this idea in mind I placed many hundred copies of the objects. The idea seemed to have a lot of promise because the frame rates seem to be hardly effected as the aircraft rolled along the taxiway. However, the bgl that contains all those hundreds of placements does have negative effect when the airport is viewed from a distance (for instance, on approach) well beyond the distance condition. In this case about a 10 frame per second negative effect which is a problem. When I remove the bgl the frames come back up so I know this file is causing the drain. From this observation I gather that the bgl with all the object placements takes up processing resources regardless whether the object is rendered. Can someone confirm this for me?

Greg
 
Yes, checking the condition if the object should be rendered or not still costs some performance. So especially with a lot of instances you'll notice that.
 
Thanks for that response Arno. I guess it is back to the drawing board to find a happy balance between detail and performance!
Cheers,
Greg
 
Or try to group nearby objects in one mdl. So you have groups of grass to place.
 
Thanks. I think that will have to be the go-forward plan if I decide to keep grass in the scenery. Still learning after all these years!

Cheers.
 
You must log in or register to reply here.
Back
Top