Procedural modelling in Houdini based on Function Representation
Procedural modelling in Houdini based on Function Representation
Procedural modelling in Houdini based on Function Representation
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4.4 <str<strong>on</strong>g>Procedural</str<strong>on</strong>g> functi<strong>on</strong>-<str<strong>on</strong>g>based</str<strong>on</strong>g> <str<strong>on</strong>g>modell<str<strong>on</strong>g>in</str<strong>on</strong>g>g</str<strong>on</strong>g> <str<strong>on</strong>g>in</str<strong>on</strong>g> Houd<str<strong>on</strong>g>in</str<strong>on</strong>g>i<br />
Figure 4.14: Offset node us<str<strong>on</strong>g>in</str<strong>on</strong>g>g different offset values: -0.5 (left), 0 (middle), 0.5 (right)<br />
Metamorphosis<br />
Probably <strong>on</strong>e of the best examples of the benefits of FRep is when morph<str<strong>on</strong>g>in</str<strong>on</strong>g>g two objects<br />
with completely different topologies. Figure 4.15 shows an example of such an operati<strong>on</strong> <str<strong>on</strong>g>in</str<strong>on</strong>g><br />
five steps from alpha = 0 to alpha = 1.<br />
Figure 4.15: Metamorphosis from a c<strong>on</strong>e to a torus<br />
Instancer<br />
The <str<strong>on</strong>g>in</str<strong>on</strong>g>stancer node can output <str<strong>on</strong>g>based</str<strong>on</strong>g> <strong>on</strong> any sort of <str<strong>on</strong>g>in</str<strong>on</strong>g>put geometry. In the example <str<strong>on</strong>g>in</str<strong>on</strong>g><br />
Figure 4.16, a torus is used to create a grid-like structure. Figure 4.17 shows a more complex<br />
example us<str<strong>on</strong>g>in</str<strong>on</strong>g>g two torus objects for the <str<strong>on</strong>g>in</str<strong>on</strong>g>stancer. The result then gets <str<strong>on</strong>g>in</str<strong>on</strong>g>tersected with a<br />
bigger torus.<br />
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