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Socoder -> C/C++/C#/Other -> Suggestions for encouraging noise away from borders? |
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| Wed, 26 Oct 2011, 12:35 | |
HoboBen
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Some of you might remember the world generator I prototyped in Cobra (SoCoder showcase) I'm working on an improved C version, and I'm using multiple octaves of simplex noise instead of a fractal for the terrain heightmap. (also because it can extend to n dimensions, it makes time-animated clouds trivial) This will avoid the diamond shaped mountains and gives me more control over the land type, e.g I can quickly switch between continents and islands:   One issue is though, I'd like there to be an option to avoid any terrain from touching the image border, without it looking like I've just cropped it with a circle. Any ideas? -=-=- blog | work | code | more code |
| Wed, 26 Oct 2011, 13:42 | |
Jayenkai
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Tricky! What if you made it more planet-like? Start with a large noise-based splodge in the center, and then grab chunks, pulling the landmass apart, leaving splodgey bits about the place. Maybe account for spherical wraparound, too? -=-=- ''Load, Next List!'' 
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| Wed, 26 Oct 2011, 14:23 | |
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HoboBen
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Oooh, got it! Rather than multiply by a scale factor based on distance, I simply subtract instead! Only issue is that doing so means that the multiple-small islands type of map doesn't work (because you are artificially inflating the centre) -- so I'm still going to try alternatives. Possibly gently cropping with a star shape instead of a circle. -=-=- blog | work | code | more code |
| Mon, 31 Oct 2011, 14:10 | |
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Teasy |
'algorithm': splodge overlaps edge:
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