1rtcCommitScene(3)        Embree Ray Tracing Kernels 3        rtcCommitScene(3)
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3
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5   NAME
6              rtcCommitScene - commits scene changes
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8   SYNOPSIS
9              #include <embree3/rtcore.h>
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11              void rtcCommitScene(RTCScene scene);
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13   DESCRIPTION
14       The rtcCommitScene function commits all changes for the specified scene
15       (scene argument).  This internally triggers building of a  spatial  ac‐
16       celeration  structure for the scene using all available worker threads.
17       Ray queries can be performed only after committing all scene changes.
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19       If the application uses TBB 2019 Update 9 or later for  parallelization
20       of  rendering, lazy scene construction during rendering is supported by
21       rtcCommitScene.  Therefore rtcCommitScene can get called from  multiple
22       TBB worker threads concurrently for the same scene.  The rtcCommitScene
23       function will then internally isolate the scene  construction  using  a
24       tbb::isolated_task_group.   The  alternative approach of using rtcJoin‐
25       CommitScene which uses an tbb:task_arena internally, is not recommended
26       due to it's high runtime overhead.
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28       If  scene  geometries get modified or attached or detached, the rtcCom‐
29       mitScene call must be invoked before performing any further ray queries
30       for the scene; otherwise the effect of the ray query is undefined.  The
31       modification of a geometry, committing the scene, and tracing  of  rays
32       must  always  happen sequentially, and never at the same time.  Any API
33       call that sets a property of the scene or geometries contained  in  the
34       scene count as scene modification, e.g.  including setting of intersec‐
35       tion filter functions.
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37       The kind of acceleration structure built can be influenced using  scene
38       flags  (see  rtcSetSceneFlags),  and the quality can be specified using
39       the rtcSetSceneBuildQuality function.
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41       Embree silently ignores primitives during spatial  acceleration  struc‐
42       ture  construction  that would cause numerical issues, e.g.  primitives
43       containing NaNs, INFs, or values greater than 1.844E18f (as no  reason‐
44       able  calculations  can  be  performed with such values without causing
45       overflows).
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47   EXIT STATUS
48       On failure an error code is set that can  be  queried  using  rtcGetDe‐
49       viceError.
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51   SEE ALSO
52       [rtcJoinCommitScene]
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56                                                             rtcCommitScene(3)