rtcSetGeometryTransform(3)                        Embree Ray Tracing Kernels 4

   NAME

              rtcSetGeometryTransform - sets the transformation for a particular
                time step of an instance geometry


   SYNOPSIS

              #include <embree4/rtcore.h>

              void rtcSetGeometryTransform(
                RTCGeometry geometry,
                unsigned int timeStep,
                enum RTCFormat format,
                const float* xfm
              );


   DESCRIPTION
       The rtcSetGeometryTransform function sets the local-to-world affine
       transformation (xfm parameter) of an instance geometry (geometry
       parameter) for a particular time step (timeStep parameter).  The
       transformation is specified as a 3x4 matrix (3x3 linear transformation
       plus translation), for which the following formats (format parameter)
       are supported:

       o RTC_FORMAT_FLOAT3X4_ROW_MAJOR: The 3x4 float matrix is laid out in
         row-major form.

       o RTC_FORMAT_FLOAT3X4_COLUMN_MAJOR: The 3x4 float matrix is laid out in
         column-major form.

       o RTC_FORMAT_FLOAT4X4_COLUMN_MAJOR: The 3x4 float matrix is laid out in
         column-major form as a 4x4 homogeneous matrix with the last row being
         equal to (0, 0, 0, 1).

   EXIT STATUS
       On failure an error code is set that can be queried using
       rtcGetDeviceError.

   SEE ALSO
       [RTC_GEOMETRY_TYPE_INSTANCE]

                                                    rtcSetGeometryTransform(3)