rtcGetGeometryTransform(3)

returns the interpolated instance

Section 3 libembree-dev bookworm source

Description

rtcGetGeometryTransform

NAME

rtcGetGeometryTransform - returns the interpolated instance
transformation for the specified time

SYNOPSIS

#include <embree3/rtcore.h>

void rtcGetGeometryTransform(
RTCGeometry geometry,
float time,
enum RTCFormat format,
void* xfm
);

DESCRIPTION

The rtcGetGeometryTransform function returns the interpolated local to world transformation (xfm parameter) of an instance geometry (geometry 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).

EXIT STATUS

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