Grid of Points by Row and Columns

Procedurally build a grid of points by rows and columns.

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And YAPH

Procedurally build a map in orange peel segments. Start with triangles.

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Quads, again

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Now that I can find the column and row, I can pick a point randomly or by clicking inside the sinusoid. I can walk to a random adjacent tile and make it land or sea, blue or green, or use position to generate a seed for a not so random number and average them with adjacent heights and subdivide quads into triangle fans with vertices above or below sea level.

Sphere

Just splat out a hemisphere...

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Icosa

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Procedurally generating an icosahedral grid

Orange Peel, Yet Again

Procedurally build a map.
Fill with quads, then make a map

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YAPH

Procedurally build a map.
Fill with quads, then make a map

Oops!