Hi Sebastian,
I’ve downloaded the book of English version you specified. It really
contains section which illustrates how to handle loading massive amount of
model data. Thanks you very much.
By the way, how do you know I’m from China? Do you tell it from my English? J
Glen
发件人: osg-users [mailto:[email protected]] 代表 Sebastian
Messerschmidt
发送时间: 2014年8月27日 14:09
收件人: OpenSceneGraph Users
主题: Re: [osg-users] 答复: OSGEarth crash when loading large amount of data
Hi Glen,
Hi Robert,
Thank you very much for helping me trace the problem. I will later check
the material parameters according to what you indicate. Now I concern about
another issue. Suppose that I got an quite large model file and need to load
it into OSG. Usually the model file is so big that it will take dozen of
seconds to load. How can I quickly load the model file without waiting too
long, thus users can have a good experience. Now my conclusion is to split the
large model into smaller ones to decrease the loading time. If this solution is
adopted, I also need to implement view update callback to dynamically load
smaller model files according to current view range. So please give me some
advice how to implement my goal?
There are ready-to-use mechanism in OpenSceneGraph. You can use PagedLOD and
ProxyNodes for splitting your models into smaller pieces. The PagedLOD also
provides the means to make the display of the node dependant on the distance.
I really suggest to crawl through the examples here. Also the "OpenSceneGraph 3
Cookbook" might be of great help. It is also available in Chinese language IIRC.
Cheers
Sebastian
Glen
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