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karansher / computer-graphics-meshes

Computer Graphics Assignment about Meshes
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Pointy Catmull-Clark #10

Closed talicopanda closed 2 years ago

talicopanda commented 2 years ago

Is this the result what we should be expecting for Catmull-Clark? I feel like my shape is a bit too pointy on the first and second iterations, but I am wondering if that's expected. If not, does anyone know what might be causing this pointy issue?

Original

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Iteration 1

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Iteration 2

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Iteration 3

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Iteration 4

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cyuan17 commented 2 years ago

Hi, I think the expected result should be like the bob-subdivision gif. My suggestion for debugging this is first using a simple object like a cube and checking which vertex is at the wrong position.

talicopanda commented 2 years ago

Found the issue, I misinterpreted Catmull-Clark as finding the midpoint of edges instead of the average of its adjacent face average values. Thanks.