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Real-time hardware accelerated ray tracing is a new feature for RDNA 2 which is handled by a dedicated ray accelerator inside each CU. [10] Ray tracing on RDNA 2 relies on the more open DirectX Raytracing protocol rather than the Nvidia RTX protocol.
RDNA 3 features second generation ray-tracing accelerators. Each Compute Unit contains one ray tracing accelerator. The overall number of ray tracing accelerators is increased due to the higher number of Compute Units, though the number of ray tracing accelerators per Compute Unit has not increased over RDNA 2.
Additional features confirmed by AMD include real-time, hardware accelerated ray tracing, "Infinity Cache", mesh shaders, sampler feedback and variable rate shading. [ 26 ] [ 10 ] The company announced that RDNA 2 would be used in next-generation gaming consoles and PC graphics cards [ 26 ] code-named "Navi 2X" and also nicknamed as "Big Navi".
Ray tracing is a technique that can generate near photo-realistic computer images. A wide range of free software and commercial software is available for producing ...
The ray tracing algorithm is inherently suitable for scaling by parallelization of individual ray renders. [3] However, anything other than ray casting requires recursion of the ray tracing algorithm (and random access to the scene graph ) to complete their analysis, [ 4 ] since reflected, refracted, and scattered rays require that various ...
The full Navi 31 die contains 12,288 FP32 cores, equivalent to 6144 stream processors. [9] Reportedly, the Navi 31 die has been designed to scale up to 3.0 GHz frequency, though AMD's Radeon RX 7900 XTX reference design can hit a boost frequency of 2.5 GHz. [10] The Navi 31 die is fabricated on TSMC's N5 process node.
On September 14, 2020, AMD hinted at the physical design of its RX 6000 series through a tweet shared on social messaging service Twitter.At the same time, it launched a virtual island inside the video game Fortnite containing a large-scale rendition of the RX 6000 hardware design, which players could freely explore using the game's Creative mode.
OptiX is a high-level, or "to-the-algorithm" API, meaning that it is designed to encapsulate the entire algorithm of which ray tracing is a part, not just the ray tracing itself. This is meant to allow the OptiX engine to execute the larger algorithm with great flexibility without application-side changes.