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 References for render methods used in GROME. « View previous topic :: View next topic » 
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zoombapup
PostPosted: Wed Jun 27, 2007 12:59 pm    Post subject: References for render methods used in GROME. Reply with quote



Joined: 27 Jun 2007
Posts: 10

Given our limited budget, I'm probably going to have to implement a GROME like renderer for terrain to work in our engine (currently TGE/A).

So I figured I'd ask. Is the GROME terrain based on any particular paper? It should give me a headstart on making something that is mostly compatible with the GROME version of the terrain (I like the tools and the game to have the same render methods where possible so it looks identical).

Any info would be appreciated.
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ALicu
PostPosted: Wed Jun 27, 2007 2:35 pm    Post subject: Reply with quote



Joined: 12 Feb 2007
Posts: 1328

OSG (OpenSceneGraph) exporter is a great example of how to render the terrain texture layers as in Grome. The OSG scene fully describes the OpenGL rendering state used to render the terrain layers. It is not optimized (it is using a rendering pass per layer) but it will give you a startup. For the geometry LOD you can implement any method (clipmaps, geomipmap) as they are heightfield based.
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ALicu
PostPosted: Wed Jun 27, 2007 6:05 pm    Post subject: Reply with quote



Joined: 12 Feb 2007
Posts: 1328

I've forgot, you can find a sample exporter OSG file here: http://www.quadsoftware.com/storage/OSGSample.rar

Look over sample.osg file, it is text and describes the scene graph. It is pretty easy to figure out the rendering operations if you are familiar with OpenGL.
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zoombapup
PostPosted: Wed Jun 27, 2007 6:59 pm    Post subject: Reply with quote



Joined: 27 Jun 2007
Posts: 10

Thanks, thats most useful.
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