1rtcGetGeometryPreviousHalfEEmdbgree(e3)Ray Tracing KerrtnceGlestG3eometryPreviousHalfEdge(3)
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5   NAME
6              rtcGetGeometryPreviousHalfEdge - returns the previous half edge
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8   SYNOPSIS
9              #include <embree3/rtcore.h>
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11              unsigned int rtcGetGeometryPreviousHalfEdge(
12                RTCGeometry geometry,
13                unsigned int edgeID
14              );
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16   DESCRIPTION
17       The  rtcGetGeometryPreviousHalfEdge function returns the ID of the pre‐
18       vious half edge of the specified half edge (edgeID argument).  For  in‐
19       stance in the following example the previous half edge of e6 is e5.
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21       This  function  can  only  be  used for subdivision geometries.  As all
22       topologies of a subdivision geometry share the  same  face  buffer  the
23       function does not depend on the topology ID.
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25   EXIT STATUS
26       On  failure  an  error  code is set that can be queried using rtcGetDe‐
27       viceError.
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29   SEE ALSO
30       [rtcGetGeometryFirstHalfEdge], [rtcGetGeometryFace], [rtcGetGeometryOp‐
31       positeHalfEdge],   [rtcGetGeometryNextHalfEdge],  [rtcGetGeometryPrevi‐
32       ousHalfEdge]
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36                                             rtcGetGeometryPreviousHalfEdge(3)