#Opengl 4.1 vs directx 11 how to#
#Opengl 4.1 vs directx 11 update#
#Opengl 4.1 vs directx 11 Offline#

Synchronization between OpenCL and DirectX 11 Notice a single pool of memory is shared by the CPU and GPU, unlike discrete GPUs that have their own dedicated memory that must be managed by the driver. Relationship of the CPU, Intel® Processor Graphics, and main memory. For example, cache hierarchies, samplers, support for atomics, and read and write queues are all utilized to get maximum performance from the memory subsystem.įigure 1. While not shown in this figure, several architectural features exist that enhance the memory subsystem. Intel Processor Graphics shares memory with the CPU. Intel® Processor Graphics with Shared Physical Memory For more detail on this last point see the MSDN references at the end of the article. Note that the D3D11_RESOURCE_MISC_FLAG cannot be used when creating resources with D3D11_CPU_ACCESS flags. When creating the DX11 texture description, set the flag MiscFlags field of D3D11_TEXTURE2D_DESC object to D3D11_RESOURCE_MISC_SHARED to ensure no copy takes place between OpenCL and DirectX 11.

#Opengl 4.1 vs directx 11 how to#

This tutorial shows you how to share a surface between OpenCL and DirectX11 using the cl_khr_dx11_sharing extension, and take advantage of CL_CONTEXT_INTEROP_USER_SYNC on Intel Processor Graphics. This tutorial will show you how to create shared surfaces between OpenCL and DirectX 11. We occasionally use DX11 as shorthand for DirectX 11. We also leverage the context property CL_CONTEXT_INTEROP_USER_SYNC, which is supported on Intel Processor Graphics and set to the default value CL_FALSE. The surface sharing extension is defined in the OpenCL extension specification with the string cl_khr_dx11_sharing.

#Opengl 4.1 vs directx 11 Offline#

The same processes apply to updates to a vertex buffer or an off-screen framebuffer object that might be used in a non-interactive offline image processing pipeline.

#Opengl 4.1 vs directx 11 update#

To get you started with surface sharing, we will show how to update a texture created using DirectX 11 with OpenCL.

This could be useful for color conversions, resampling, or performing compression in some scenarios. Finally, imagine post-processing an image with OpenCL after rendering the scene using the 3D pipeline. Another would be using a dynamically generated procedural texture created in OpenCL when rendering a 3D object in the scene. One example where this could be used would be a real-time computer vision application, which runs a feature detector over an image in OpenCL, then uses DirectX 11 to render the final output to the screen in real time with features clearly marked. The goal is to provide access to the expressiveness enabled by the OpenCL C kernel and the rendering capabilities of the DirectX11 API.

This tutorial demonstrates how to share surfaces between OpenCL™ and DirectX* 11 with Intel ® Processor Graphics on Microsoft Windows*, using the surface sharing extension in OpenCL. What do to when no surface sharing is supported?.Sharing Framebuffers, Depth, Stencil, and MSAA surfaces.Sharing explicit synchronization events between OpenCL and DirectX 11.Details of Surface Sharing between OpenCL and DirectX 11.Overview of Surface Sharing between OpenCL and DirectX 11.Synchronization between OpenCL and DirectX 11.Intel® Processor Graphics with Shared Physical Memory.