Intel reveals ambitious plans to enable the ultimate in path-traced eye candy on integrated graphics
A new Intel blog post has revealed the company's ambitious plans to enable real-time path tracing on not just its Arc discrete GPUs but eventually its integrated graphics, too.
Intel says it will lay out several new approaches to path tracing via research papers introduced at industry conferences later this year.
«With Intel’s ubiquitous integrated GPUs and emerging discrete graphics, researchers are pushing the efficiency of the most demanding photorealistic rendering, called path tracing,» Intel says.
«Across the process of path tracing, the research presented in these papers demonstrates improvements in efficiency in path tracing’s main building blocks, namely ray tracing, shading, and sampling. These are important components to make photorealistic rendering with path tracing available on more affordable GPUs, such as Intel Arc GPUs, and a step toward real-time performance on integrated GPUs.»
In really broad terms, path tracing is a higher fidelity version of ray tracing where the path of each light ray and how it reflects off multiple surfaces is more accurately simulated. Inevitably, it's even more demanding in terms of GPU resources than conventional ray tracing. So far, path tracing has been implemented on games like Quake II RTX and Portal RTX, neither of which are demanding titles without ray tracing involved.
Intel says one of the papers will propose a novel and efficient method to compute the reflections from what's known as a GGX microfacet surface. Such surfaces are the most widely simulated in the game, animation, and VFX industries and essentially compromise the most common materials in the real world, including textured and rough surfaces.
The idea is that most material surfaces are made up of a large
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