Embree 3.12.0-alpha.0

Intel® Embree is a collection of high-performance ray tracing kernels, developed at Intel. The target users of Intel® Embree are graphics application engineers who want to improve the performance of their photo-realistic rendering application by leveraging Embree's performance-optimized ray tracing kernels. The kernels are optimized for the latest Intel® processors with support for SSE, AVX, AVX2, and AVX-512 instructions. Intel® Embree supports runtime code selection to choose the traversal and build algorithms that best matches the instruction set of your CPU. We recommend using Intel® Embree through its API to get the highest benefit from future improvements. Intel® Embree is released as Open Source under the Apache 2.0 license.

Tags redenderer
License Apache
State stable

Recent Releases

3.12.0-alpha.019 Sep 2020 03:15 minor feature: Round linear curves now automatically check for the existence of left and right connected segments if the flags buffer is empty. Left segments exist if the segment(id-1) + 1 == segment(id) and similarly for right segments. Implemented the min-width feature for curves and points, which allows to increase the radius in a distance dependent way, such that the curve or points thickness is n pixels wide. Round linear curves are now also at their start. Embree no longer supports Visual Studio 2013 starting with this release. in subdivision tessellation level assignment for non-quad base primitives. Small meshes are directly added to top level build phase of two-level builder to reduce memory consumption. Enabled fast two level builder for user geometries when low quality build is requested.
3.11.027 Jun 2020 06:25 minor feature: Round linear curves now automatically check for the existence of left and right connected segments if the flags buffer is empty. Left segments exist if the segment(id-1) + 1 == segment(id) and similarly for right segments. Implemented the min-width feature for curves and points, which allows to increase the radius in a distance dependent way, such that the curve or points thickness is n pixels wide. Round linear curves are now also at their start. Embree no longer supports Visual Studio 2013 starting with this release. in subdivision tessellation level assignment for non-quad base primitives. Small meshes are directly added to top level build phase of two-level builder to reduce memory consumption. Enabled fast two level builder for user geometries when low quality build is requested.
3.11.0-alpha.123 Jun 2020 09:05 minor feature: Added EMBREE_COMPACT_POLYS CMake option which enables double indexed triangle and quad leaves to reduce memory consumption in compact mode by an additional 40 at about 15 performance impact. This new mode is disabled by default. Compile for oneTBB 2021.1-beta05. Releases upgrade to TBB 2020.2. Compile for ISPC v1.13.0. Adding RPATH to libembree.so in releases. Increased required CMake version to 3.1.0. Made instID member for array of pointers ray stream layout optional again.
3.11.0-alpha.005 Jun 2020 06:05 minor feature: Added EMBREE_COMPACT_POLYS CMake option which enables double indexed triangle and quad leaves to reduce memory consumption in compact mode by an additional 40 at about 15 performance impact. This new mode is disabled by default. Compile for oneTBB 2021.1-beta05. Releases upgrade to TBB 2020.2. Compile for ISPC v1.13.0. Adding RPATH to libembree.so in releases. Increased required CMake version to 3.1.0. Made instID member for array of pointers ray stream layout optional again.
3.10.012 May 2020 06:45 minor feature: Added EMBREE_COMPACT_POLYS CMake option which enables double indexed triangle and quad leaves to reduce memory consumption in compact mode by an additional 40 at about 15 performance impact. This new mode is disabled by default. Compile for oneTBB 2021.1-beta05. Releases upgrade to TBB 2020.2. Compile for ISPC v1.13.0. Adding RPATH to libembree.so in releases. Increased required CMake version to 3.1.0. Made instID member for array of pointers ray stream layout optional again.
3.9.008 Apr 2020 10:05 minor feature: Added round linear curve geometry support. In this mode a real geometric surface for curves with linear basis is rendered using capped cones with spherical filling between the curve segments. Added rtcGetSceneDevice API function, that returns the device a scene got created in. Improved performance of round curve rendering by up to 1.8x. to sphere intersection filter invokation for back hit. wrong assertion that triggered for invalid curves which anyway get filtered out. RelWithDebInfo mode no longer enables assertions. an in FindTBB.cmake that caused compile error with Debuild under Linux. Embree releases no longer provide RPMs for Linux. Please use the RPMs coming with the package manager of your Linux distribution.
3.8.006 Feb 2020 05:45 minor feature: Added collision detection support for user geometries (see rtcCollide API function). Passing geomID to user geometry callbacks. in AVX512VL codepath for rtcIntersect1. For sphere geometries the intersection filter gets now invoked for front and back hit. some for quaternion motion blur. RTCIntersectContext always non-const in Embree API. Made RTCHit aligned to 16 bytes in Embree API.
3.7.1-alpha.018 Jan 2020 07:05 minor feature: Added quaternion motion blur for correct interpolation of rotational transformations. Wrong bounding calculations when a motion blurred instance di Instantiate a motion blurred scene. In robust mode the depth test consistently uses tnear
3.7.011 Jan 2020 10:45 minor feature: Added quaternion motion blur for correct interpolation of rotational transformations. Wrong bounding calculations when a motion blurred instance di Instantiate a motion blurred scene. In robust mode the depth test consistently uses tnear
3.7.0-alpha.120 Dec 2019 09:25 minor feature: Restored binary compatibility between Embree 3.6 and 3.5 when single-level instancing is used. in subgrid intersector. Removed point query alignment in ISPC header.
3.6.2-alpha.223 Nov 2019 10:25 minor feature: Restored binary compatibility between Embree 3.6 and 3.5 when single-level instancing is used. in subgrid intersector. Removed point query alignment in ISPC header.
3.6.2-alpha.124 Oct 2019 12:25 minor feature: Restored binary compatibility between Embree 3.6 and 3.5 when single-level instancing is used. in subgrid intersector. Removed point query alignment in ISPC header.
3.6.2-alpha.028 Sep 2019 03:15 minor feature: Restored binary compatibility between Embree 3.6 and 3.5 when single-level instancing is used. in subgrid intersector. Removed point query alignment in ISPC header.
3.6.124 Sep 2019 23:31 minor feature: Restored binary compatibility between Embree 3.6 and 3.5 when single-level instancing is used. Fixed bug in subgrid intersector. Removed point query alignment in ISPC header.