1rtcSetGeometryTransform(3)Embree Ray Tracing Kernels 3rtcSetGeometryTransform(3)
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5   NAME
6              rtcSetGeometryTransform - sets the transformation for a particular
7                time step of an instance geometry
8
9   SYNOPSIS
10              #include <embree3/rtcore.h>
11
12              void rtcSetGeometryTransform(
13                RTCGeometry geometry,
14                enum RTCMatrixType layout,
15                const float* xfm,
16                unsigned int timeStep
17              );
18
19   DESCRIPTION
20       The  rtcSetGeometryTransform  function  sets  the local-to-world affine
21       transformation (xfm parameter) of an instance geometry (geometry param‐
22       eter) for a particular time step (timeStep parameter).  The transforma‐
23       tion is specified as a  3×4  matrix  (3×3  linear  transformation  plus
24       translation),  for  which  the following layouts (layout parameter) are
25       supported:
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27       · RTC_FORMAT_FLOAT3X4_ROW_MAJOR: The 3×4 float matrix is  laid  out  in
28         row-major form.
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30       · RTC_FORMAT_FLOAT3X4_COLUMN_MAJOR: The 3×4 float matrix is laid out in
31         column-major form.
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33       · RTC_FORMAT_FLOAT4X4_COLUMN_MAJOR: The 3×4 float matrix is laid out in
34         column-major form as a 4×4 homogeneous matrix with the last row being
35         equal to (0, 0, 0, 1).
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37   EXIT STATUS
38       On failure an error code is  set  that  can  be  queried  using  rtcDe‐
39       viceGetError.
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41   SEE ALSO
42       [RTC_GEOMETRY_TYPE_INSTANCE]
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46                                                    rtcSetGeometryTransform(3)