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diff --git a/graphics/embree/README b/graphics/embree/README new file mode 100644 index 000000000000..85e4ce2ad773 --- /dev/null +++ b/graphics/embree/README @@ -0,0 +1,43 @@ +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. + +Intel® Embree supports applications written with the Intel® SPMD Program +Compiler (ISPC, https://ispc.github.io/) by also providing an ISPC +interface to the core ray tracing algorithms. This makes it possible to +write a renderer in ISPC that automatically vectorizes and leverages +SSE, AVX, AVX2, and AVX-512 instructions. ISPC also supports runtime +code selection, thus ISPC will select the best code path for your +application. + +Intel® Embree contains algorithms optimized for incoherent workloads +(e.g. Monte Carlo ray tracing algorithms) and coherent workloads (e.g. +primary visibility and hard shadow rays). + +The single-ray traversal kernels of Intel® Embree provide high +performance for incoherent workloads and are very easy to integrate into +existing rendering applications. Using the stream kernels, even higher +performance for incoherent rays is possible, but integration might +require significant code changes to the application to use the stream +paradigm. In general for coherent workloads, the stream mode with +coherent flag set gives the best performance. + +Intel® Embree also supports dynamic scenes by implementing +high-performance two-level spatial index structure construction +algorithms. + +In addition to the ray tracing kernels, Intel® Embree provides some +Embree Tutorials to demonstrate how to use the Embree API. + +Optional dependency: Intel® Threading Building Blocks (TBB) & Intel® +SPMD Program Compiler (ISPC) |