Outerra forum
Outerra Engine => Ideas & Suggestions & Questions => Topic started by: BenDragon on November 01, 2012, 03:21:46 pm
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As snow accumulation is planned to be implemented in outerra (I've been searching before hand, but I generally didn't get the right answer from my searches) I've wondered if being able for vehicles to plough.
I've also wondered aobut the accmumulation of snow on vehicles. http://1funny.com/wp-content/uploads/2011/01/car-snow.jpg (http://1funny.com/wp-content/uploads/2011/01/car-snow.jpg) Snow Explodes off Semi (http://www.youtube.com/watch?v=zJwMB_rc-3E#ws)
I also wanted to know about deserts and how they interact with the weather, as in sand storms. I also would like to know how sand would interact with vehicles.
Thanks for reading.
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Snow height should be kept in a separate layer, probably the same one used for grass envelope now. The operations that modify terrain height (roads) should be extended to allow modifying only the upper layer - will be used for tracks in grass, snow, dirt. Ploughing/plowing falls into this category as well. Also the sand layer forming dunes in desert should be handled this way.
Physics and interactions are a different matter. Parts of it could be relatively easy, like the physics of wheels. But simulating it to the extent like in the video would be more complicated.
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How on earth (aka Outerra) would you accomplish accumulation on structures and models? I guess a layer extending to the "top" of static models wouldn't be TOO hard. But models intent on moving I can't figure.
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Of course, the layer won't work on models, that's just for terrain. Maybe some other trick could be used for the models without having to provide snow cover as a switchable part of the model ...
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Well could the upper snow layer be made to detect a static model and just place itself atop the collision mesh taking the shape? That way snow buildup would look natural and not have snow forming INSIDE buildings as well.
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If material blending is supported in the engine, you could always blend a snow material on top of any others on the upwards facing normals of the mesh.