Now that we have finished rendering the particle system calculated on the CPU, let us consider what it would take to move this to the GPU for the ultimate in parallel programming. Other than these few gotchas, things went pretty much as described in the Direct3D 12 tutorials. Notice how we subtract each attribute’s starting offset from the buffer size via offsetof() macros to avoid this buffer overrun warning. We create a new file named RendererD3D12.cpp and add the corresponding class to the Renderers.h file. The software design there makes this easy to do since it nicely encapsulates the concept of rendering. Our first task is to add a Direct3D 12 renderer to the particle system in the Intel Core i5 Processor-versus-Intel Core i7 Processor article mentioned above. You can find the sample code described in this article at the download link above. We will use the results from the paper, A Comparison of the Intel® Core™ i5 Processor and Intel® Core™ i7 Processor with Visualizations in OpenGL* and Oculus* VR, and extend the code there to contain a Direct3D 12 renderer, after which we are going to re-implement its particle system as a Direct3D 12 compute shader. We will examine rendering parallel topics using Direct3D* 12.

Direct3d ddi 12 download