Man page - rtcgetgeometrytransformfromscene(3)

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Package: libembree-dev
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Manual

rtcGetGeometryTransformFromScene

NAME
SYNOPSIS
DESCRIPTION
EXIT STATUS
SEE ALSO

NAME

rtcGetGeometryTransformFromScene - returns the interpolated instance
  transformation for the specified time

SYNOPSIS

#include <embree4/rtcore.h>


void rtcGetGeometryTransformFromScene(
  RTCScene scene,
  unsigned int geomID,
  float time,
  enum RTCFormat format,
  void* xfm
);

DESCRIPTION

The rtcGetGeometryTransformFromScene function returns the interpolated local to world transformation ( xfm output parameter) of an instance geometry specified by its geometry ID ( geomID parameter) of a scene ( scene parameter) for a particular time ( time parameter in range [0, 1]) in the specified format ( format parameter).

Possible formats for the returned matrix are:

	•		`RTC_FORMAT_FLOAT3X4_ROW_MAJOR` : The 3×4 float matrix is laid out in row-major form.
	•		`RTC_FORMAT_FLOAT3X4_COLUMN_MAJOR` : The 3×4 float matrix is laid out in column-major form.
	•		`RTC_FORMAT_FLOAT4X4_COLUMN_MAJOR` : The 3×4 float matrix is laid out in column-major form as a 4×4 homogeneous matrix with last row equal to (0, 0, 0, 1).

In contrast to the rtcGetGeometryTransform function, the rtcGetGeometryTransformFromScene function can get used during rendering inside a SYCL kernel.

EXIT STATUS

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