MODELLING CONCEPTS

 

There are several ways to achieve this technique. This is a fairly efficient method:

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A slightly different method is required for radial expansion as we need to avoid Convex polygons which would naturally occur.

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Select the full loop which you want to use to transition to a higher count.

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press "e" to extrude and "s" to scale it down a little.

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right click and choose subdivide from the pop up menu.

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On the inner loop find a vertex with no edge running up to the outer loop.

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Shift and select the vertex at the top of the edge next to it.

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Shift and select the next vertex around on the inner loop

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Press J to join them.

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Miss out a vertex (on the inner loop)

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Repeat this process until they are all connected.

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Alt click one of the edges inside the triangular shapes then shift alt-and click all of the others.

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Press x and choose dissolve edges.

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select the inner loop, press "e" to extrude and scale it down slightly.

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Now go around pressing "Ctrl-r" to inset edges at the base of each triangle.

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Select the very inner loop and use the circle tool to make it a perfect circle.

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